chlorides-buliding-blocks Archives - Page 786 of 1743

Trost, Barry M’s team published research in ACS Catalysis in 2019-02-01 | 128-09-6

ACS Catalysis published new progress about Alcohols, propargyl Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 128-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C4H4ClNO2, Quality Control of 128-09-6.

Trost, Barry M.; Tracy, Jacob S. published the artcile< Vanadium-Catalyzed Synthesis of Geometrically Defined Acyclic Tri- and Tetrasubstituted Olefins from Propargyl Alcohols>, Quality Control of 128-09-6, the main research area is bromo chloro iodo trisubstituted tetrasubstituted enone diastereoselective preparation; vanadium catalyst stereoselective bromination chlorination iodination propargyl alc; stereoselective bromination chlorination iodination propargyl alc aqueous hexafluoroisopropanol.

Aryl tri- and tetrasubstituted α-halo-α,β-unsaturated ketones and tetrasubstituted β-halo-α,β-unsaturated ketones were prepared diastereoselectively from propargyl alcs. and halonium ion sources using either the vanadium catalyst [(4-ClC6H4)3SiO]3V(:O) (for α-halo unsaturated ketones) or using halonium ion sources with aqueous hexafluoroisopropanol as the solvent via 1,2-aryl shifts (for β-halo unsaturated ketones). In some cases, isomerization of (E)-α-chloro-α,β-unsaturated ketones in the presence of DMAP in DMF yielded the corresponding (Z)-α-chloro-α,β-unsaturated ketones in > 20:1 diastereoselectivities. These methods allow the preparation of stereodefined tri- and tetrasubstituted olefins; the methods were used to prepare various compounds including the sesquiterpene (±)-myodesmone.

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

Brotschi, Christine’s team published research in ChemMedChem in 2020-03-01 | 85740-98-3

ChemMedChem published new progress about Blood proteins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study) (plasma protein binding). 85740-98-3 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H7ClO3, HPLC of Formula: 85740-98-3.

Brotschi, Christine; Bolli, Martin H.; Gatfield, John; Heidmann, Bibia; Jenck, Francois; Roch, Catherine; Sifferlen, Thierry; Treiber, Alexander; Williams, Jodi T.; Boss, Christoph published the artcile< From Oxadiazole to Triazole Analogues: Optimization toward a Dual Orexin Receptor Antagonist with Improved in vivo Efficacy in Dogs>, HPLC of Formula: 85740-98-3, the main research area is insomnia disorders orexin receptor antagonist metabolic stability orally brain; drug design; dual orexin receptor antagonists; insomnia; sleep disorders; structure-activity relationships.

The orexin system is responsible for regulating the sleep-wake cycle. Suvorexant, a dual orexin receptor antagonist (DORA) is approved by the FDA for the treatment of insomnia disorders. Herein, we report the optimization efforts toward a DORA, where our starting point was (5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}methanone (6), a compound which emerged from our inhouse research program. Compound 6 was shown to be a potent, brain-penetrating DORA with in vivo efficacy similar to suvorexant in rats. However, shortcomings from low metabolic stability, high plasma protein binding (PPB), low brain free fraction (fu brain), and low aqueous solubility, were identified and hence, compound 6 was not an ideal candidate for further development. Our optimization efforts addressing the above-mentioned shortcomings resulted in the identification of (4-chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-methyl-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}l-methanone (42), a DORA with improved in vivo efficacy compared to 6.

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

Vaswani, Rishi G.’s team published research in Journal of Organic Chemistry in 2008 | CAS: 37908-97-7

3,5-Dichloro-4-methoxybenzoic acid(cas: 37908-97-7) belongs to organochlorine compounds. The wide structural variety and divergent chemical properties of organochlorides lead to a broad range of names, applications, and properties.Related Products of 37908-97-7 Organochlorine compounds have wide use in many applications, though some are of profound environmental concern, with TCDD being one of the most notorious.

Related Products of 37908-97-7On March 7, 2008, Vaswani, Rishi G.; Chamberlin, A. Richard published an article in Journal of Organic Chemistry. The article was 《Stereocontrolled Total Synthesis of (-)-Kaitocephalin》. The article mentions the following:

This paper describes the successful implementation of a stereocontrolled strategy for the total chem. synthesis of the pyrrolidine-based alkaloid (-)-kaitocephalin (I). This scalable synthetic route profits from the strategic utilization of substrate-controlled manipulations for the iterative installation of the requisite stereogenic centers. The key transformations include a diastereoselective modified Claisen condensation, a chemo- and diastereoselective reduction of a β-keto ester, and the substrate-directed hydrogenation of a dehydroamino ester derivative During the course of our investigations, an interesting stereoconvergent cyclization reaction was discovered for the efficient assembly of the kaitocephalin 2,2,5-trisubstituted pyrrolidine core. The experimental part of the paper was very detailed, including the reaction process of 3,5-Dichloro-4-methoxybenzoic acid(cas: 37908-97-7Related Products of 37908-97-7)

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

Badolato, Mariateresa’s team published research in Future Medicinal Chemistry in 2020 | CAS: 620-20-2

3-Chlorobenzylchloride(cas: 620-20-2) has been used in the reaction of 3-methoxybenzyl chloride and ethyl 4-bromobenzoate in pure water, using zinc dust and a Pd catalyst.Reference of 3-Chlorobenzylchloride

《Triazolopyrimidinium salts: discovery of a new class of agents for cancer therapy》 was published in Future Medicinal Chemistry in 2020. These research results belong to Badolato, Mariateresa; Manetti, Fabrizio; Garofalo, Antonio; Aiello, Francesca. Reference of 3-Chlorobenzylchloride The article mentions the following:

Aim: The [1,2,4]triazolo[1,5-a]pyrimidine core is highly privileged in medicinal chem. due to its versatile pharmacol. activity profile. Recently, the search for novel anticancer agents has focused on [1,2,4]triazolo[1,5-a]pyrimidine derivatives Results: Our hit functionalization has led to the discovery of new [1,2,4]triazolo[1,5-a]pyrimidinium salts with potential anticancer activity. Among a small library of mols., compound 9 significantly inhibits cancer cell growth in a panel of in vitro models. Mol. docking studies and preliminary binding assay have displayed that 9 could directly bind the Src homol. 2 (SH2) domain of STAT3 protein. Conclusion: Compound 9 is a novel promising lead compound that motivates addnl. evaluation of [1,2,4]triazolo[1,5-a]pyrimidinium salts as novel potential chemotherapeutics. After reading the article, we found that the author used 3-Chlorobenzylchloride(cas: 620-20-2Reference of 3-Chlorobenzylchloride)

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

Benmohammed, Abdelmadjid’s team published research in Monatshefte fuer Chemie in 2021 | CAS: 620-20-2

3-Chlorobenzylchloride(cas: 620-20-2) has been used in the reaction of 3-methoxybenzyl chloride and ethyl 4-bromobenzoate in pure water, using zinc dust and a Pd catalyst.Quality Control of 3-Chlorobenzylchloride

《Synthesis and antimicrobial activities of new thiosemicarbazones and thiazolidinones in indole series》 was written by Benmohammed, Abdelmadjid; Rekiba, Nawel; Sehanine, Yassine; Louail, Ahmed Amine; Khoumeri, Omar; Kadiri, Mokhtaria; Djafri, Ayada; Terme, Thierry; Vanelle, Patrice. Quality Control of 3-Chlorobenzylchloride And the article was included in Monatshefte fuer Chemie on August 31 ,2021. The article conveys some information:

New thiosemicarbazones I [R1 = H, 3-Cl, 4-F, etc.; R2 = H, OMe] were synthesized via condensation of N-benzylindole-3-carboxaldehydes with N4-substituted thiosemicarbazides in excellent yield. These thiosemicarbazones I were reacted with Et bromoacetate to produce original heterocyclic-substituted indole derivatives possessing a 4-oxo-thiazolidine group II. Anal. IR and NMR spectra and elemental anal. were performed to reveal their structures. The antimicrobial activity of all synthesized compounds was evaluated for antibacterial activity in vitro against Gram-pos. and Gram-neg. bacteria. Antibacterial screening data showed that two compounds I and II demonstrated activity against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa. These preliminary results indicated that newly synthesized compounds such as I [R1 = 3-Cl, R2 = OMe] and II [R1 = H, R2 = H] showed a promising antibacterial potency.3-Chlorobenzylchloride(cas: 620-20-2Quality Control of 3-Chlorobenzylchloride) was used in this study.

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

Kang, Juyeon’s team published research in Asian Journal of Organic Chemistry in 2022 | CAS: 5781-53-3

Methyl 2-chloro-2-oxoacetate(cas: 5781-53-3) belongs to acyl chlorides. Lacking the ability to form hydrogen bonds, acyl chlorides have lower boiling and melting points than similar carboxylic acids. For example, acetic acid boils at 118 °C, whereas acetyl chloride boils at 51 °C. Like most carbonyl compounds, infrared spectroscopy reveals a band near 1750 cm−1.Formula: C3H3ClO3

《Intramolecular Cyclization of 2-Alkynylphenylcarbonyls With a Pendant Double Bond under Copper Catalysis: A General Approach to Norabietane Core Structure》 was written by Kang, Juyeon; Lee, Ju Hui; Lee, Junseong; Oh, Chang Ho. Formula: C3H3ClO3This research focused ontricyclic compound preparation; alkynyl phenylcarbonyl cyclization copper catalyst. The article conveys some information:

Synthetic routes leading to [6,6,6]-tricyclic compounds I [R = H, Me, C(O)OMe; R1 = H, OMe; R2 = H, OMe; R3 = H, CH(CH3)2; R2R3 = -OCH2O-; R4 = H, Me, OMe, Ph, etc.; R5 = H, C(O)OMe, C(O)OEt; R6 = H, Me, C(O)OMe, etc.] and II (R6 = H, Me; R7 = H, C(O)OMe) were reported using metal catalysts from ene-yne aldehydes. Based on this result, the synthesis of various [6,6,6]-tricyclic compounds I and II is reported using transition metal-catalyzed cyclization from enyne-carbonyl substrates. Tricyclic compounds containing the CO2Me group would be the prospective precursors of the natural product Lepenine.Methyl 2-chloro-2-oxoacetate(cas: 5781-53-3Formula: C3H3ClO3) was used in this study.

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

Kindler, Karl’s team published research in Justus Liebigs Annalen der Chemie in 1927 | CAS: 7116-36-1

Ethyl 3-(4-chlorophenyl)propanoate(cas: 7116-36-1) belongs to organochlorine compounds. The wide structural variety and divergent chemical properties of organochlorides lead to a broad range of names, applications, and properties.Electric Literature of C11H13ClO2 Organochlorine compounds have wide use in many applications, though some are of profound environmental concern, with TCDD being one of the most notorious.

《Firmness of union of organic radicals and reaction velocity. II. The saponification of esters, addition of hydrogen sulfide to nitroes and the transformation of alkyl chlorides into ethers》 was published in Justus Liebigs Annalen der Chemie in 1927. These research results belong to Kindler, Karl. Electric Literature of C11H13ClO2 The article mentions the following:

cf. C. A. 21, 77. In the saponification of aromatic esters with H2SO4, the following values of k were obtained: m-MeOC6H4CO2Et, 0.0587; 3,4-CH2O2:C6H3CO2Et, 0.0203; Et p-methylmercaptobenzoate, b15 168°, m. 28°, k 0.0388; Et p-ethylbenzoate, b15, 129-30°, 0.0222; p-PhC6H4CO2Et, 0.0536. From these the firmness of union is calculated as follows: Ph, 100; m-MeOC6H4, 83.5; p-PhC6H4, 91.4; p-MeSC6H4, 126; p-EtC6H4, 221; 3,4-CH2O2:C5H3, 241. AcOEt and H2SO4 give a value for k of 0.481; EtCO2Et, 0.226; PrCO2Et, 0.132; BuCO2Et, 0.126; AmCo2Et, 0.131; heptylic acid and caprylic acid also gave values of 0.130; PhCH2CO2Et, 0.636; p-MeOC6H4CH2CO2Et, 0.68O; p-MeC6H4CH2CO2Et, 0-585; p-H2NC6H4CO2Et, 0.325; p-ClC6H4CH2CO2Et, 1.62; p-O2NC6H4CH2CO2Et, 4.57; PhCH2CH2CO2Et, 0.343; p-MeOC6H4CH2CH2CO2Et, b14 165° 0.288; 3,4-CH2O2.C6H3CH2CH2CO2Et, 0.329; p-ClC6H4CH2CO2Et, 0.516; PhCH2CH2CH2CO2Et 0.199; PhCH:CHCO2Et, 0.106; o-MeOC6H4CH:CHCO2Et, 0.0399; p-MeOC6H4CH:CHCO2Et, 0.0444; 3,4-CH2O2:C6H4CH:CHCO2Et, 0.0614; p-MeC6H4CH:CHCO2Et, 0.0754; o-ClC6H4CH:CHCO2Et, 0.211; p-ClC6H4CH:CHCO2Et, 0.215; o-O2NC6H4CH:CHCO2Et, 0.841; m-O2NC6H4CH:CHCO2Et, 0.798; p-O2NC6H4CH:CHCO2Et, 1.037. From these values the relative firmness of union to the group CO2Et is calculated for each of tile above alkyl and aryl groups. The following values of k were obtained for the reaction of nitriles with H2S, the time in min. being given first: PhCH2CN, 345, 0.001105; Ph(CH2)2CN, 240, 0.000499; Ph(CH2)3CN 345, 0.000414; p-ClC6H4CH2CN, 285, 0.002921; EtCN, 1440, O.000158; PrCN, 1440, 0.000094. γ-Phenylthiobutyramide, pale yellow, m. 62° (corrected); p-chlorophenylthioacetamde, egg yolk-yellow, m. 128-9° (corrected); thiobutyramide, red-brown oil. The reaction of alkyl chlorides with EtONa at 31.6° gave the following values for k: PhCH3Cl, 8.70; p-ClC6H4CH2Cl. 15.9; PhCH2-CH2Cl, 0.69; Ph(CH2)3Cl, 0.099. From these values the firmness of union toward Cl is calculated: p-ClC6H4CH2, 54.7; PhCH2, 100; Ph(CH2)2, 1261; Ph(CH2)3, 8778. In the experimental materials used by the author, we found Ethyl 3-(4-chlorophenyl)propanoate(cas: 7116-36-1Electric Literature of C11H13ClO2)

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

Mutra, Mohana Reddy’s team published research in Chemistry – A European Journal in 2022 | CAS: 98-60-2

4-Chlorobenzenesulfonyl chloride(cas: 98-60-2) belongs to organochlorine compounds. The wide structural variety and divergent chemical properties of organochlorides lead to a broad range of names, applications, and properties.Name: 4-Chlorobenzenesulfonyl chloride Organochlorine compounds have wide use in many applications, though some are of profound environmental concern, with TCDD being one of the most notorious.

Name: 4-Chlorobenzenesulfonyl chlorideIn 2022 ,《Time and Atom Economical Regio- and Chemoselective Radical Cyclization of Unactivated 1,6-Enynes Under Metal- and Oxidant-Free Conditions》 appeared in Chemistry – A European Journal. The author of the article were Mutra, Mohana Reddy; Li, Jing; Chen, Yu-Ting; Wang, Jeh-Jeng. The article conveys some information:

Authors developed time-atom economic regio- and chemoselective sulfonyl radical triggered 5-exo-dig cyclization of unactivated 1,6-enynes with sulfonyl halides under metal, additive-free reaction conditions to achieve highly substituted five-membered heterocyclic compounds I (R1 = Me, Ph, 3-O2NC6H4, etc.; R2 = Me, Ph; R3 = H, Me, t-Bu, etc.; X = N(Ts), O, NC(O)Ph, etc.). This transformation creates three new bonds, such as C-SO2, C-C, and active C-I/Br bonds. Importantly, one-pot protocols produce desired products directly from sodium sulfinates and have an addnl. advantage such as minimising chem. waste, saving time, and simplifying practical aspects compared to existing protocols. After reading the article, we found that the author used 4-Chlorobenzenesulfonyl chloride(cas: 98-60-2Name: 4-Chlorobenzenesulfonyl chloride)

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

Atack, Thomas C.’s team published research in ACS Medicinal Chemistry Letters in 2020 | CAS: 5781-53-3

Quality Control of Methyl 2-chloro-2-oxoacetateIn 2020 ,《Targeted Covalent Inhibition of Plasmodium FK506 Binding Protein 35》 appeared in ACS Medicinal Chemistry Letters. The author of the article were Atack, Thomas C.; Raymond, Donald D.; Blomquist, Christa A.; Pasaje, Charisse Flerida; McCarren, Patrick R.; Moroco, Jamie; Befekadu, Henock B.; Robinson, Foxy P.; Pal, Debjani; Esherick, Lisl Y.; Ianari, Alessandra; Niles, Jacquin C.; Sellers, William R.. The article conveys some information:

FK506-binding protein 35, FKBP35, has been implicated as an essential malarial enzyme. Rapamycin and FK506 exhibit antiplasmodium activity in cultured parasites. However, due to the highly conserved nature of the binding pockets of FKBPs and the immunosuppressive properties of these drugs, there is a need for compounds that selectively inhibit FKBP35 and lack the undesired side effects. In contrast to human FKBPs, FKBP35 contains a cysteine, C106, adjacent to the rapamycin binding pocket, providing an opportunity to develop targeted covalent inhibitors of Plasmodium FKBP35. Here, we synthesize inhibitors of FKBP35, show that they directly bind FKBP35 in a model cellular setting, selectively covalently modify C106, and exhibit antiplasmodium activity in blood-stage cultured parasites. In the experimental materials used by the author, we found Methyl 2-chloro-2-oxoacetate(cas: 5781-53-3Quality Control of Methyl 2-chloro-2-oxoacetate)

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

Chang, Xiaoqiang’s team published research in Advanced Synthesis & Catalysis in 2022 | CAS: 16629-19-9

Thiophene-2-sulfonyl chloride(cas: 16629-19-9) is a member of sulfonyl chlorides. Sulfonyl chlorides are reactive sulfonic acid derivatives similar in properties and reactivity to acid chlorides of carboxylates. The sulfonic acid group, however, is a highly hindered molecule, containing a tetrahedral configuration of substituents. Category: chlorides-buliding-blocks

In 2022,Chang, Xiaoqiang; Chen, Xingyu; Lu, Sixian; Zhao, Yifan; Ma, Yue; Zhang, Dong; Yang, Lan; Sun, Peng published an article in Advanced Synthesis & Catalysis. The title of the article was 《Electrochemical [3+2] Cycloaddition of Anilines and 1,3-Dicarbonyl Compounds: Construction of Multisubstituted Indoles》.Category: chlorides-buliding-blocks The author mentioned the following in the article:

Herein, the intermol. electro-oxidative cycloaddition of anilines and com. available 1,3-dicarbonyl compds was reported. This method provided an alternative route for the synthesis of a broad range of multisubstituted indoles I [R1 = H, 5-EtO, 6-Cl,5-MeO, etc.; R2 = Ts, benzenesulfonyl, ethylsulfonyl, etc.; R3 = Ph, 4-MeC6H4, 4-MeOC6H4, etc.] without a transition-metal catalyst or external chem. oxidant. In addition to this study using Thiophene-2-sulfonyl chloride, there are many other studies that have used Thiophene-2-sulfonyl chloride(cas: 16629-19-9Category: chlorides-buliding-blocks) was used in this study.

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