Month: September 2022

Chloride substituents modify the physical properties of organic compounds in several ways. 6334-18-5, formula is C7H4Cl2O, Name is 2,3-Dichlorobenzaldehyde. They are typically denser than water due to the presence of chlorine, which has a high atomic weight. Formula: C7H4Cl2O.

Elgaafary, Menna;Fouda, Ahmed M.;Mohamed, Hany M.;Hamed, Abdelaaty;El-Mawgoud, Heba K. A.;Jin, Lu;Ulrich, Judith;Simmet, Thomas;Syrovets, Tatiana;El-Agrody, Ahmed M. research published 《 Synthesis of β-enaminonitrile-linked 8-methoxy-1H-benzo[f]chromene moieties and analysis of their antitumor mechanisms》, the research content is summarized as follows. A series of aryl-substituted 3-amino-1-aryl-8-methoxy-1H-benzo[f]chromene-2-carbonitriles (4a-4q) were designed and synthesized via reaction of 6-methoxy-2-naphthol with a mixture of appropriate aromatic aldehydes and malononitrile under microwave conditions. The structures of the novel compounds 4b, 4c, 4f, 4g, 4i, 4l, 4m, and 4o-4q were established according to IR, ¹H-NMR, ¹³C-NMR/¹³C-NMR-DEPT, and MS. The benzochromene derivative 4c with a single chlorine at the meta position of the Ph ring and, to a lesser extent, other benzochromenes with monohalogenated Ph ring (4a, 4c-4f) exhibited the highest cytotoxicity against six human cancer cell lines MDA-MB-231, A549, HeLa, MIA PaCa-2, 5,637, and Hep G₂. The mechanisms of the cytotoxic activities of benzochromenes with monohalogenated Ph ring (4a, 4c-4f) were further analyzed using triple-neg. breast cancer cell line MDA-MB-231. Cell cycle anal. showed accumulation of the treated cells in S phase for 4a, 4d-4f, and S-G₂/M phases for 4c. In vivo, 4a and 4c-4f inhibited growth, proliferation, and triggered apoptosis in preestablished breast cancer xenografts grown on the chick chorioallantoic membranes while exhibiting low systemic toxicity. Compounds 4a and 4c-4f increased levels of mitochondrial superoxide and decreased mitochondrial membrane potential resulting in initiation of apoptosis as demonstrated by caspase 3/7 activation. In addition, 4c induced general oxidative stress in cancer cells. The SAR study confirmed that halogens of moderate size at meta or para positions of the pendant Ph ring enhance the cytotoxic activity of 3-amino-1-aryl-8-methoxy-1H-benzo[f]chromene-2-carbonitriles, and these compounds could serve as leads for the development of novel anticancer therapies.

6334-18-5, 2,3-Dichlorobenzaldehyde(2,3-DBA)is a useful research compound. Its molecular formula is C7H4Cl2O and its molecular weight is 175.01 g/mol. The purity is usually 95%.
2,3-DBA is an organic compound that is used as a synthetic intermediate in the preparation of other chemicals. It is prepared by reacting 2-chloroacetophenone with hydrochloric acid and sodium carbonate in a reaction vessel. The product can be purified through fractional distillation or crystallization. The optical properties of 2,3-DBA are determined by its dipole moment and the substituents attached to the methylene group. Molecular modeling studies have shown that felodipine can bind to 2,3-DBA through its active methylene group. The reaction products between sulfadiazine and 2,3-DBA are pyridinedicarboxylic acid and 3-chlorobenzaldehyde.
2,3-DBA is part of a group of Benzaldehyde (B119740) derivatives that exhibit activity against Mycobacterium tuberculosis, the bacteria responsible for causing tuberculosis in humans. 2,3-DBA is also used as a reagent to synthesize (E)-2-(2-arylhydrazinyl)quinoxalines, compounds that have potent anticancer activity., Formula: C7H4Cl2O

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. 6334-18-5, formula is C7H4Cl2O, Name is 2,3-Dichlorobenzaldehyde. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Electric Literature of 6334-18-5.

Elgaafary, Menna;Lehner, Julia;Fouda, Ahmed M.;Hamed, Abdelaaty;Ulrich, Judith;Simmet, Thomas;Syrovets, Tatiana;El-Agrody, Ahmed M. research published 《 Synthesis and evaluation of antitumor activity of 9-methoxy-1H-benzo[f]chromene derivatives》, the research content is summarized as follows. Herein, a series of aryl-substituted derivatives of 3-amino-1-aryl-9-methoxy-1H-benzo[f]chromene-2-carbonitriles (4a-4q) were designed and synthesized via reaction of 7-methoxy-2-naphthol with a mixture of appropriate aromatic aldehydes and malononitrile under microwave conditions. Among the tested benzochromene, the known compound 4e and four novel compounds 4f, 4j, 4k, 4m exhibited the highest cytotoxicity towards a panel of six human cancer cell lines MDA-MB-231, A549, HeLa, MIA PaCa-2, RPMI 7951, and PC-3. Compound 4j with 2,4-dichloro substitution on the pendant Ph ring exhibited the highest broad-spectrum cytotoxicity towards all tested cancer cell lines. Compounds 4e, 4f, 4j, 4k, 4m were further selected to study the mechanism of cellular toxicity using the triple-neg. breast cancer cells MDA-MB-231. Compounds 4e, 4f, 4j, 4k, 4m induced accumulation of the treated MDA-MB-231 cells in the S phase and 4k addnl. in the G2/M phase of the cell cycle. Compounds 4e, 4f, 4j, 4k, 4m induced dissipation of mitochondrial transmembrane potential and activation of caspase 3/7 in MDA-MB-231 cells with 4j being one of the most active. In an in vivo model, compound 4j and less efficiently 4e and 4f inhibited growth and proliferation and triggered DNA fragmentation in MDA-MB-231 xenografts grown on chick chorioallantoic membranes. SAR study confirmed that the 2,4-dichloro substitution pattern on the pendant Ph ring enhanced the cytotoxic activity of benzochromene.

Electric Literature of 6334-18-5, 2,3-Dichlorobenzaldehyde(2,3-DBA)is a useful research compound. Its molecular formula is C7H4Cl2O and its molecular weight is 175.01 g/mol. The purity is usually 95%.
2,3-DBA is an organic compound that is used as a synthetic intermediate in the preparation of other chemicals. It is prepared by reacting 2-chloroacetophenone with hydrochloric acid and sodium carbonate in a reaction vessel. The product can be purified through fractional distillation or crystallization. The optical properties of 2,3-DBA are determined by its dipole moment and the substituents attached to the methylene group. Molecular modeling studies have shown that felodipine can bind to 2,3-DBA through its active methylene group. The reaction products between sulfadiazine and 2,3-DBA are pyridinedicarboxylic acid and 3-chlorobenzaldehyde.
2,3-DBA is part of a group of Benzaldehyde (B119740) derivatives that exhibit activity against Mycobacterium tuberculosis, the bacteria responsible for causing tuberculosis in humans. 2,3-DBA is also used as a reagent to synthesize (E)-2-(2-arylhydrazinyl)quinoxalines, compounds that have potent anticancer activity., 6334-18-5.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. 104-86-9, formula is C7H8ClN, Name is (4-Chlorophenyl)methanamine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Computed Properties of 104-86-9.

Egly, Julien;Chen, Weighang;Maisse-Francois, Aline;Bellemin-Laponnaz, Stephane;Achard, Thierry research published 《 Half-Sandwich Ruthenium Complexes Bearing Hemilabile κ²-(C,S)-Thioether-Functionalized NHC Ligands: Application to Amide Synthesis from Alcohol and Amine》, the research content is summarized as follows. Amide synthesis is one of the most crucial transformations in chem. and biol. Among various catalytic systems, N-heterocyclic carbene (NHC)-based ruthenium (Ru) catalyst systems have been proven to be active for direct synthesis of amides by sustainable acceptorless dehydrogenative Coupling of primary alcs. with amines. Most often, these catalytic systems usually use monodentate NHC and thus require an addnl. ligand to obtain high reactivity and selectivity. In this work, a series of cationic Ru(II)(η⁶-p-cymene) complexes with thioether-functionalized N-heterocyclic carbene ligands (imidazole and benzimidazole-based) have been prepared and fully characterized. These complexes have then been used in the amidation reaction and the most promising one (i.e. 3c) has been applied on a large range of substrates. High conversions albeit with moderate yields have generally been obtained.

104-86-9, 4-Chlorobenzylamine is a useful research compound. Its molecular formula is C7H8ClN and its molecular weight is 141.6 g/mol. The purity is usually 95%.
4-Chlorobenzylamine is a reactant in the environmentally friendly synthesis of pyrroles.
4-Chlorobenzylamine is a chemical that is used as an intermediate in the synthesis of other compounds. It has low bioavailability, which may be due to its reactive site. The chemical can be characterized using nmr spectra and potent inhibitory activity. 4-Chlorobenzylamine has been found to react with nitrogen atoms, and this reaction is highly acidic. FT-IR spectroscopy can also be used to characterize this compound. Intermolecular hydrogen bonding and hydroxyl group are two of the major interactions of 4-chlorobenzylamine with other molecules. This chemical reacts with serine protease, glyoxal, and other substances in a manner that depends on the molecule’s structure., Computed Properties of 104-86-9

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. 6334-18-5, formula is C7H4Cl2O, Name is 2,3-Dichlorobenzaldehyde. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. HPLC of Formula: 6334-18-5.

Ebrahimi, Seyed Esmaeil Sadat;Nozari, Nasrin;Bahadorikhalili, Saeed;Yahya-Meymandi, Azadeh;Foroumadi, Alireza;Larijani, Bagher;Biglar, Mahmood;Mahdavi, Mohammad research published 《 Efficient one-pot synthesis of novel 6′,9′-dihydro-2H,7’H-spiro[pyrimidine-5,8′-[1,3]dioxolo[4,5-f]quinoline]-2,4,6(1H,3H)-trione derivatives under mild and “green” reaction conditions》, the research content is summarized as follows. An efficient method was introduced for the synthesis of 7′,9′-disubstituted 6′,9′-dihydro-2H,7’H-spiro[pyrimidine-5,8′-[1,3]dioxolo[4,5-f]quinoline]-2,4,6(1H,3H)-trione derivatives under mild and “green” reaction conditions was reported. The method was based on one-pot multicomponent reaction of an aldehyde, barbituric acid, and benzo[d][1,3]dioxol-5-amine in ethanol as a green and environmentally friendly solvent. The reaction provided the products in the highest isolated yield in the presence of acetic acid as catalyst under reflux conditions. Various aldehydes, bearing electron-donating or -withdrawing functionalities was used under the optimized conditions and successfully gave the desired products in high isolated yields.

6334-18-5, 2,3-Dichlorobenzaldehyde(2,3-DBA)is a useful research compound. Its molecular formula is C7H4Cl2O and its molecular weight is 175.01 g/mol. The purity is usually 95%.
2,3-DBA is an organic compound that is used as a synthetic intermediate in the preparation of other chemicals. It is prepared by reacting 2-chloroacetophenone with hydrochloric acid and sodium carbonate in a reaction vessel. The product can be purified through fractional distillation or crystallization. The optical properties of 2,3-DBA are determined by its dipole moment and the substituents attached to the methylene group. Molecular modeling studies have shown that felodipine can bind to 2,3-DBA through its active methylene group. The reaction products between sulfadiazine and 2,3-DBA are pyridinedicarboxylic acid and 3-chlorobenzaldehyde.
2,3-DBA is part of a group of Benzaldehyde (B119740) derivatives that exhibit activity against Mycobacterium tuberculosis, the bacteria responsible for causing tuberculosis in humans. 2,3-DBA is also used as a reagent to synthesize (E)-2-(2-arylhydrazinyl)quinoxalines, compounds that have potent anticancer activity., HPLC of Formula: 6334-18-5

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. 12112-67-3, formula is C16H24Cl2Ir2, Name is Chloro(1,5-cyclooctadiene)iridium(I) dimer. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Name: Chloro(1,5-cyclooctadiene)iridium(I) dimer.

Durran, Sean E.;Elsegood, Mark R. J.;Noble, Thomas A.;Smith, Martin B.;Gelbrich, Thomas;Hursthouse, Michael B.;Light, Mark E. research published 《 Synthesis and Characterisation of Transition Metal Complexes of a Novel 1,5-benzodiazepine-Functionalised Tertiary Phosphine》, the research content is summarized as follows. The 1-step synthesis (44% isolated yield) of the 1,5-benzodiazapine functionalized phosphine 1, C₃₁H₃₁N₂OP, is reported. Bridge cleavage of {MCl(μ-Cl)(η⁵-Cp^*)}₂ (M = Ir, Rh) with 2 equiv of 1 in CH₂Cl₂ gave mononuclear [MCl₂(η⁵-Cp^*)(P-1)] (M = Ir, 2a; M = Rh, 2b) in which 1 functions as a P-monodentate ligand. Rapid C(sp³)-H bond activation, at room temperature, is observed for 2a leading to the unusual cyclometalated complex [Ir(η⁵-Cp^*)(P,N,C-1)]Cl₂ 3 (or 3‘) bearing an anionic P/N_amine/C-terdentate ligand. Reaction of [PtMeCl(η⁴-cod)] with one equivalent of 1 led to [PtMeCl(P,N-1)] 4, suggesting that 3 may form via an intermediate Ir(III) cationic species in which the ligand is P,N-bound. The Ir^I complex [IrCl(η⁴-cod)(P-1)] 5 does not, under similar conditions, show any evidence for C-H activation. Single crystal x-ray studies on 1, 2a, 2b, 3, 3‘, 4, and 5 reveal intramol. N ··· H-O H-bonding in all cases.

Name: Chloro(1,5-cyclooctadiene)iridium(I) dimer, Bis(1,5-cyclooctadiene)diiridium(I) is a useful research compound. Its molecular formula is C16H24Cl2Ir2-2 and its molecular weight is 671.7 g/mol. The purity is usually 95%.
Bis(1,5-cyclooctadiene)diiridium(I) Dichloride is a catalyst used in the iridium-catalyzed asymmetry hydrogenation of unfunctionalized exocyclic double carbon bonds. Also, it is used to test new NeoPHOX ligands derived from serine or threonine.
Bis(1,5-cyclooctadiene)diiridium(I) dichloride is an acid that can be prepared using a preparative method. It is an organometallic compound that can be used in the cross-coupling of activated terminal alkynes with aryl halides. Bis(1,5-cyclooctadiene)diiridium(I) dichloride has been synthesized by reacting furfural with chloride and acetonitrile. The ligand used was 2,2′-bipyridine. The reaction time to produce bis(1,5-cyclooctadiene)diiridium(I) dichloride is approximately three hours.
, 12112-67-3.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. 1878-65-5, formula is C8H7ClO2, Name is 3-Chlorophenylacetic acid. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Related Products of 1878-65-5.

Dubart, Amaury;Evano, Gwilherm research published 《 Divergent Synthesis of α-Fluorinated Carbonyl and Carboxyl Derivatives by Double Electrophilic Activation of Amides》, the research content is summarized as follows. A straightforward and divergent entry to α-fluorinated carbonyl and carboxyl derivatives was reported. Upon activation of amides with triflic anhydride and a 2-halo-pyridine and subsequent trapping of the resulting keteniminium ions with nucleophiles followed by a second electrophilic activation with NFSI and final hydrolysis, a range of amides was transformed to α-fluorinated ketones, esters and amides under mild conditions. Moreover, this reaction was performed to yield enantioenriched products with a traceless chiral auxiliary.

Related Products of 1878-65-5, 3-Chlorophenylacetic acid is a useful research compound. Its molecular formula is C8H7ClO2 and its molecular weight is 170.59 g/mol. The purity is usually 95%.
3-Chlorophenyl acetic acid is a compound that has resonance mass of 269. The compound reacts with HBr and water to produce 3-chlorobenzene, carbon dioxide and hydrogen chloride. A reaction product of this chemical is covid-19 pandemic (a type of drug)., 1878-65-5.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Chlorinated organic compounds are found in nearly every class of biomolecules. 12112-67-3, formula is C16H24Cl2Ir2, Name is Chloro(1,5-cyclooctadiene)iridium(I) dimer. Alkyl chlorides, as versatile building blocks in organic chemistry, are used in the preparation of alcohols, thioethers, alkenes, alkynes, esters, and Grignard reagents. Safety of Chloro(1,5-cyclooctadiene)iridium(I) dimer.

Duan, Xuelun;Zheng, Nan;Li, Ming;Sun, Xinhao;Lin, Zhuye;Qiu, Pan;Song, Wangze research published 《 Remote ether groups-directed regioselective and chemoselective cycloaddition of azides and alkynes》, the research content is summarized as follows. Remote ether groups could be used as directing groups to prepare fully substituted 5-ether-1,2,3-triazoles with exclusive 1,5-regioselectivities and excellent chemoselectivities. Ether group could coordinate with iridium catalyst by lone-pair electron at a distance (up to four σ bonds) away from alkyne to control the regioselectivity by weak coordination effect. The cycloaddition reaction chemoselectively occurred at the propargyl ether moiety of diyne to give unique fully substituted 4-alkynyl-triazole.

Safety of Chloro(1,5-cyclooctadiene)iridium(I) dimer, Bis(1,5-cyclooctadiene)diiridium(I) is a useful research compound. Its molecular formula is C16H24Cl2Ir2-2 and its molecular weight is 671.7 g/mol. The purity is usually 95%.
Bis(1,5-cyclooctadiene)diiridium(I) Dichloride is a catalyst used in the iridium-catalyzed asymmetry hydrogenation of unfunctionalized exocyclic double carbon bonds. Also, it is used to test new NeoPHOX ligands derived from serine or threonine.
Bis(1,5-cyclooctadiene)diiridium(I) dichloride is an acid that can be prepared using a preparative method. It is an organometallic compound that can be used in the cross-coupling of activated terminal alkynes with aryl halides. Bis(1,5-cyclooctadiene)diiridium(I) dichloride has been synthesized by reacting furfural with chloride and acetonitrile. The ligand used was 2,2′-bipyridine. The reaction time to produce bis(1,5-cyclooctadiene)diiridium(I) dichloride is approximately three hours.
, 12112-67-3.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. 349-88-2, formula is C6H4ClFO2S, Name is 4-Fluorobenzene-1-sulfonyl chloride. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. SDS of cas: 349-88-2.

Duan, Wen-Di;Cao, Jing-Yu;Cai, Chao-Yun;Yang, Zhi-Rong;Cui, Jin-Feng;Lan, Tian;Chen, You-Nan;Wang, Jing;Rao, Yong;Huang, Zhi-Shu;Wang, Bo research published 《 Xanthone sulfonamide derivatives-A novel series of α-glucosidase inhibitors with different inhibitory types》, the research content is summarized as follows. In order to discover highly potent α-glucosidase inhibitors, 20 xanthone-benzenesulfonamide derivatives I (R = H, Me, Br, etc.) and II were designed and synthesized. As expected, most of these derivatives exhibited good to excellent inhibitory activities, the IC₅₀ values of these xanthone sulfonamides varied from 0.4 ± 0.05 to 52.2 ± 2.1μM. Especially, compound I (R = OMe) showed the most potent activity (IC₅₀ = 0.4μM), with 111-fold more potent than the pos. control 1-deoxynojirimycin (DNJ), which is a leap compared to authors previous xanthone compound It was noteworthy that these derivatives can be competitive, noncompetitive or uncompetitive inhibitors, while these inhibitory types differed by the alteration of the substituents on the benzene ring of benzenesulfonamide. To give insight into this interesting effect, further docking study was performed, indicating the flexible conformations introduced by the sulfonamide structure affect the binding site and binding mode of these compounds with the enzyme. Furthermore the uncompetitive inhibitors showed significantly stronger binding interactions with the enzyme-substrate complex than the enzyme. Addnl., the competitive inhibitor I (R = NH₂) (1μM) exhibited a similar glucose-level decreasing and glucose up-take increasing effect compared to DNJ (5μM), the pos. control in HepG2 cells at five-fold lower concentration, revealing that this compound has promising hypoglycemic effect at the cellular level.

SDS of cas: 349-88-2, 4-Fluorobenzenesulfonyl chloride is a useful research compound. Its molecular formula is C6H4ClFO2S and its molecular weight is 194.61 g/mol. The purity is usually 95%.

4-Fluorobenzenesulfonyl Chloride is found to be an excellent activating agent for the covalent attachment of biological substances to a variety of solid supports e.g. Sepharose beads. 4-Fluorobenzenesulfonyl Chloride is also used as a reagent for the studies of proteins by fluorine NMR.

4-Fluorobenzenesulfonyl chloride is a reactive chemical that has been shown to have a low safety profile in humans. It is used in the synthesis of replication inhibitors, which are potential anticancer drugs. It also has been shown to inhibit tumor metastasis and growth in mice by binding to the active site of DNA polymerase and inhibiting DNA replication. 4-Fluorobenzenesulfonyl chloride is stable in human liver cells and has been shown to be an effective macroinitiator for proton-coupled electron transfer reactions. This compound has been shown to induce locomotor activity and energy efficiency in rats, which may be due to its ability to increase the number of mitochondria per cell., 349-88-2.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. 3900-89-8, formula is C6H6BClO2, Name is (2-Chlorophenyl)boronic acid. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. COA of Formula: C6H6BClO2.

Duan, Shao-Bo;Gao, Xu-Jing;Zhang, Hong-Yu;Lu, Cong-Cong;Zhao, Jiquan;Han, Ya-Ping;Zhang, Yuecheng;Liang, Yong-Min research published 《 Palladium-catalyzed intramolecular tandem dearomatization of indoles for the synthesis of tetracyclic indolines》, the research content is summarized as follows. A highly diastereoselective, atom-economical, and palladium-catalyzed Heck protocol for the assembly of structurally diverse indoline scaffolds with vicinal tertiary as well as quaternary stereocenters is described, starting from readily available N-halobenzoyl o-haloaniline derivatives and phenylboronic acids. This cascade annulation reaction, which is scalable and conducts under an ambient atm., provides the valuable tetracyclic indoline derivatives in an efficient and straightforward way.

COA of Formula: C6H6BClO2, 2-Chlorophenylboronic acid is a useful research compound. Its molecular formula is C6H6BClO2 and its molecular weight is 156.38 g/mol. The purity is usually 95%.
2-Chlorophenylboronic acid used in the preparation of imidazo[1,2-a]pyridine amides which has tuberculostatic activity.
2-Chlorophenylboronic acid is a diphenyl ether that can be used as a building block for the synthesis of benzodiazepine receptor ligands. It has been shown to be an efficient nucleophile, leading to the formation of carbonyl groups in the presence of halides. 2-Chlorophenylboronic acid has also been shown to inhibit p38 kinase activity and may be useful for anticancer therapy., 3900-89-8.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Chloride substituents modify the physical properties of organic compounds in several ways. 3900-89-8, formula is C6H6BClO2, Name is (2-Chlorophenyl)boronic acid. They are typically denser than water due to the presence of chlorine, which has a high atomic weight. Electric Literature of 3900-89-8.

Du, Xin;Zhao, Huan;Li, Xinling;Zhang, Lizhi;Dong, Yunhui;Wang, Ping;Zhang, Daopeng;Liu, Qing;Liu, Hui research published 《 Ligand-Regulated Palladium-Catalyzed Regiodivergent Hydroarylation of the Distal Double Bond of Allenamides with Aryl Boronic Acid》, the research content is summarized as follows. The ligand-regulated regiodivergent hydroarylation of the distal double bond of allenamides with aryl boronic acid was achieved in the presence of Pd(II) catalysts, delivering a variety of functionalized enamide with excellent E selectivity and Markovnikov/anti-Markovnikov selectivity. Two possible coordination intermediates probably are responsible for the regiodivergent hydroarylation: (1) The coordination Intermediate I, which probably is formed through the coordination of MeCN, distal double bond, Ph to Pd, led to the aryl group away from the Intermediate I, inducing excellent E selectivity and anti-Markovnikov selectivity. (2) A switch of regioselectivity to 1,2-Markovnikov hydroarylation was obtained using bidentate phosphine ligand (dppf or Xantphos). The formed coordination Intermediate II led to the N-tether away from the Intermediate II and at the trans position of aryl, resulting in excellent E selectivity and Markovnikov selectivity. Meanwhile, tentative study on the mechanism proved that the hydron source of this hydroarylation is more likely to be boronic acid. The transmetalation between aryl boronic acid and Pd catalyst was the initial step of this transformation.

3900-89-8, 2-Chlorophenylboronic acid is a useful research compound. Its molecular formula is C6H6BClO2 and its molecular weight is 156.38 g/mol. The purity is usually 95%.
2-Chlorophenylboronic acid used in the preparation of imidazo[1,2-a]pyridine amides which has tuberculostatic activity.
2-Chlorophenylboronic acid is a diphenyl ether that can be used as a building block for the synthesis of benzodiazepine receptor ligands. It has been shown to be an efficient nucleophile, leading to the formation of carbonyl groups in the presence of halides. 2-Chlorophenylboronic acid has also been shown to inhibit p38 kinase activity and may be useful for anticancer therapy., Electric Literature of 3900-89-8

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics