Chlorides-buliding-blocks

Balaraman, Kaluvu published the artcileOrganocatalytic Decarboxylative Cyanomethylation of Difluoromethyl and Trifluoromethyl Ketones, Computed Properties of 5860-95-7, the publication is Advanced Synthesis & Catalysis (2018), 360(24), 4705-4709, database is CAplus and MEDLINE.

An efficient organocatalytic method for the synthesis of difluoromethyl and trifluoromethyl substituted β-hydroxynitriles RC(OH)(CXF₂)CH₂CN (R = Ph, cyclohexyl, furan-2-yl, etc.; X = H, F) is introduced. The decarboxylative cyanomethylation of fluorinated ketones RC(O)CXF₂ with readily available cyanoacetic acid gives a variety of tertiary alcs. in high yields and without concomitant water elimination. The reaction occurs in the presence of catalytic amounts of triethylamine, and can be upscaled and applied to chlorofluoromethyl ketones and difluoromethyl ketimines.

Advanced Synthesis & Catalysis published new progress about 5860-95-7. 5860-95-7 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Benzene,Ketone, name is 1-(2-Chlorophenyl)-2,2,2-trifluoroethanone, and the molecular formula is C8H4ClF3O, Computed Properties of 5860-95-7.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Fager, Diana C. published the artcileRegio- and Enantioselective Synthesis of Trifluoromethyl-Substituted Homoallylic α-Tertiary NH₂-Amines by Reactions Facilitated by a Threonine-Based Boron-Containing Catalyst, Product Details of C8H4ClF3O, the publication is Angewandte Chemie, International Edition (2020), 59(28), 11448-11455, database is CAplus and MEDLINE.

A method for catalytic regio- and enantioselective synthesis of trifluoromethyl-substituted and aryl-, heteroaryl-, alkenyl-, and alkynyl-substituted homoallylic α-tertiary NH₂-amines is introduced. Easy-to-synthesize and robust N-silyl ketimines are converted to NH-ketimines in situ, which then react with a Z-allyl boronate. Transformations are promoted by a readily accessible L-threonine-derived aminophenol-based boryl catalyst, affording the desired products in up to 91% yield, >98:2 α:γ selectivity, >98:2 Z:E selectivity, and >99:1 enantiomeric ratio. A com. available aminophenol may be used, and allyl boronates, which may contain an alkyl-, a chloro-, or a bromo-substituted Z-alkene, can either be purchased or prepared by catalytic stereoretentive cross-metathesis. In addition, Z-trisubstituted allyl boronates may be used. Various chemo-, regio-, and diastereoselective transformations of the α-tertiary homoallylic NH₂-amine products highlight the utility of the approach; this includes diastereo- and regioselective epoxide formation/trichloroacetic acid cleavage to generate differentiated diol derivatives

Angewandte Chemie, International Edition published new progress about 5860-95-7. 5860-95-7 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Benzene,Ketone, name is 1-(2-Chlorophenyl)-2,2,2-trifluoroethanone, and the molecular formula is C8H4ClF3O, Product Details of C8H4ClF3O.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Takano, Seiichi published the artcileChiral synthesis of both enantiomers of 1,4-dideoxy-1,4-iminolyxitol and 1,4-dideoxy-1,4-iminoribitol, Synthetic Route of 18791-02-1, the publication is Tetrahedron: Asymmetry (1992), 3(6), 681-4, database is CAplus.

Reaction of 2,3-dibromopropionyl chloride with 4-methoxyphenol and (S)-1-methylbenzylamine yielded a 4:5 mixture of readily separable diastereomeric aziridine esters I (R = C₆H₄OMe-4) in an excellent yield. Thermal intermol. 1,3-dipolar cycloaddition of both diastereomers with vinylene carbonate, furnished four readily separable diastereomeric pyrrolidine esters, resp., which were transformed into both enantiomers of title compounds

Tetrahedron: Asymmetry published new progress about 18791-02-1. 18791-02-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is 2,3-Dibromopropionylchloride, and the molecular formula is C14H22O2, Synthetic Route of 18791-02-1.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Hayashi, Koichiro published the artcileChemoselective Synthesis of Folic Acid-Functionalized Magnetite Nanoparticles via Click Chemistry for Magnetic Hyperthermia, HPLC of Formula: 18791-02-1, the publication is Chemistry of Materials (2009), 21(7), 1318-1325, database is CAplus.

Folic acid-functionalized Fe₃O₄ nanoparticles (FA-Fe₃O₄ NPs) were synthesized from iron(III) 3-allylacetylacetonate (IAA) through in situ hydrolysis and ligand modification, by applying the principle of click chem. The γ-carboxylic acid of FA was successfully bound to the ligand of the Fe₃O₄ NPs without the loss of the α-carboxylic acid group of folic acid (FA), which has an affinity for folate receptors (FRs) expressed on tumor cells. The Fe₃O₄ NPs were monodisperse, and their size was controlled by varying the conditions of IAA hydrolysis. The FA-Fe₃O₄ NPs, which had diameters of 8 nm, exhibited superparamagnetic behavior and a relatively high magnetization at room temperature The blocking temperature is 220 K, and the magnetization curve exhibited a remanence of 19 emu/g and a coercivity of 550 Oe at 5 K. The specific absorption rate (SAR) was dependent on the size of the FA-Fe₃O₄ NPs and the strength of the applied magnetic field. The SAR of the 8-nm FA-Fe₃O₄ NPs was 670 W/g in a 230 kHz alternating magnetic field and 100 Oe. The chemoselective surface modification of magnetite particles with FA yielded a novel cancer-targeting system for use in hyperthermia treatment.

Chemistry of Materials published new progress about 18791-02-1. 18791-02-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is 2,3-Dibromopropionylchloride, and the molecular formula is C3H3Br2ClO, HPLC of Formula: 18791-02-1.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Kawanishi, Hiroyuki published the artcileStereoselective synthesis of antifungal sulfoximines, novel triazoles II, Safety of trimethyloxosulphonium chloride, the publication is Heterocycles (1998), 181-190, database is CAplus.

Novel triazole derivatives I (R = H, MeCO, MeNHCO, Me, MeO₂CCH₂) with an N-substituted sulfoximine moiety were synthesized and evaluated for antifungal activity. These compounds showed significantly weaker activity than I (R = H); the N-H moiety of the sulfoximine was extremely important for the activity. A practical and effective stereoselective synthesis of (-)-I (R = H), considered to be the most promising antifungal compound, has been developed. (-)-I (R = H) is prepared in seven steps, including two resolution steps, from the methylthiodifluoropropiophenone II, by epoxidation with Me₃SO⁺ Cl^–, diastereoselective sulfimine formation with chloramine T, addition of 1,2,4-triazole to the epoxide, oxidation of the sulfimine, acid hydrolysis of toluenesulfonyl group of the sulfoximine, and resolution with the novel resolving agent 1-(2,3,4-trichlorophenyl)ethanesulfonic acid [(+)-TCPES] III.

Heterocycles published new progress about 5034-06-0. 5034-06-0 belongs to chlorides-buliding-blocks, auxiliary class Salt,Aliphatic hydrocarbon chain, name is trimethyloxosulphonium chloride, and the molecular formula is C3H9ClOS, Safety of trimethyloxosulphonium chloride.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Harada, Hiroshi published the artcileDevelopment of potent serotonin-3 (5-HT₃) receptor antagonists. I. Structure-activity relationships of 2-alkoxy-4-amino-5-chlorobenzamide derivatives, Related Products of chlorides-buliding-blocks, the publication is Chemical & Pharmaceutical Bulletin (1995), 43(8), 1364-78, database is CAplus and MEDLINE.

A new series of 2-alkoxy-4-amino-5-chlorobenzamide derivatives bearing five- to seven-membered heteroalicyclic rings in the amine moiety was synthesized and evaluated for serotonin-3 (5-HT₃) receptor antagonistic activity by assaying the ability to antagonize the von Bezold-Jarisch reflex in rats. The five- to seven-membered heterocycles comprise pyrrolidine, morpholine, 1,4-thiazine, piperidine, piperazine, 1,4-oxazepine, 1,4-thiazepine, azepine, and 1,4-diazepine rings. Among them, some benzamide derivatives having a 1,4-diazepine ring showed a potent 5-HT₃ receptor antagonistic activity. In particular, 4-amino-5-chloro-N-(1,4-dimethylhexahydro-1H-1,4-diazepin-6-yl)-2-ethoxybenzamide and the 1-benzyl-4-methylhexahydro-1H-1,4-diazepine analog showed potent 5-HT₃ receptor antagonist activity without 5-HT₄ receptor binding affinity.

Chemical & Pharmaceutical Bulletin published new progress about 36335-47-4. 36335-47-4 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene,Ether, name is 3-Chloro-2,6-dimethoxybenzoic acid, and the molecular formula is C9H9ClO4, Related Products of chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Stadler, Marco published the artcileDesign, Synthesis, and Pharmacological Evaluation of Novel β2/3 Subunit-Selective γ-Aminobutyric Acid Type A (GABA_A) Receptor Modulators, Category: chlorides-buliding-blocks, the publication is Journal of Medicinal Chemistry (2019), 62(1), 317-341, database is CAplus and MEDLINE.

Subunit-selective modulation of γ-aminobutyric acid type A receptors (GABA_AR) is considered to exert fewer side effects compared to unselective clin. used drugs. Here, the β2/3 subunit-selective GABA_AR modulators valerenic acid (VA) and loreclezole (LOR) guided the synthesis of novel subunit-selective ligands with simplified structures. We studied their effects on GABA_ARs expressed in Xenopus laevis oocytes using two-microelectrode voltage clamp technique. Five compounds showed significantly more efficacious modulation of GABA-evoked currents than VA and LOR with retained potency and selectivity. Compound 18 [(E)-2-Cyano-3-(2,4-dichlorophenyl)but-2-enamide] induced the highest maximal modulation of GABA-induced chloride currents (E_max: 3114 ± 242%), while 12 [(Z)-3-(2,4-dichlorophenyl)but-2-enenitrile] displayed the highest potency (EC₅₀: 13 ± 2 μM). Furthermore, in hippocampal neurons 12 facilitated phasic and tonic GABAergic inhibition, and in vivo studies revealed significantly more potent protection against pentylenetetrazole (PTZ)-induced seizures compared to VA and LOR. Collectively, compound 12 constitutes a novel, simplified, and subunit-selective GABA_AR modulator with low-dose anticonvulsant activity.

Journal of Medicinal Chemistry published new progress about 145349-62-8. 145349-62-8 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Boronic Acids, name is 2-Chloro-4-methylphenylboronic acid, and the molecular formula is C10H10O2, Category: chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Boyd, G. S. published the artcileThe interrelations and effects of iodothyronines and cholesterol on the myocardium of the rat, Application of 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride, the publication is Journal of Atherosclerosis Research (1961), 470-88, database is CAplus and MEDLINE.

3,3′,5-Triiodo-L-thyronine (T₃) was administered to adult male rats at 50 γ/day. Serum cholesterol, O consumption, heart rate, and histology of the heart were studied in these animals. The hyperthyroid state in the rat was accompanied by an increase in O consumption, heart rate, and cardiac hypertrophy. Many of the hearts from hyperthyroid rats exhibited degenerative lesions of the cardiac muscle characterized by focal necrosis and fibrosis. The effect of varying the diet on the metabolic and histol. responses was studied. The inclusion of cholesterol and olive oil in the diet appeared to protect the animal against T₃-induced myocardial lesions. The time-course of these lesions with respect to the cardiac hypertrophy suggests that the effects may be causally related. The lesions can be produced by a wide variety of iodothyronines related to T₃, provided the dosage of the analog is adjusted to produce an approx. equivalent cardiac hypertrophy.

Journal of Atherosclerosis Research published new progress about 6249-56-5. 6249-56-5 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst,Inhibitor,Natural product, name is 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride, and the molecular formula is C7H16ClNO2, Application of 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

D’Onofrio, Jennifer published the artcileAn Efficient and Versatile Solid-Phase Synthesis of 5′- and 3′-Conjugated Oligonucleotides, Application of 3-Chloro-4-hydroxyphenylacetic acid, the publication is Organic Letters (2005), 7(22), 4927-4930, database is CAplus and MEDLINE.

An easy and efficient solid-phase strategy to obtain 5′- and 3′-oligonucleotide conjugates in highly pure form has been developed. Ad hoc derivatized solid supports, to which the first nucleoside unit can be attached through a phosphate linkage, have been exploited both in a pre- and post-DNA assembly conjugation approach. A number of 5′- or 3′- oligonucleotide conjugates, incorporating a variety of labels covalently linked through a phosphodiester or a phosphoramidate bond, have been synthesized and characterized.

Organic Letters published new progress about 33697-81-3. 33697-81-3 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene,Phenol, name is 3-Chloro-4-hydroxyphenylacetic acid, and the molecular formula is C8H7ClO3, Application of 3-Chloro-4-hydroxyphenylacetic acid.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Lourenco, Nuno M. T. published the artcileIonic Acylating Agents for the Enzymatic Resolution of sec-Alcohols in Ionic Liquids, Related Products of chlorides-buliding-blocks, the publication is European Journal of Organic Chemistry (2010), 6938-6943, S6938/1-S6938/52, database is CAplus.

Potential acylating agents containing pendant ionic groups have been screened for the enzymic kinetic resolution of rac-secondary alcs. in ionic liquids with CAL-B as biocatalyst. This study has allowed the identification of the 1-methyl-3-alkylimidazolium cation attached to a carboxylate group through a C₁₀-alkyl chain as an efficient acylating agent for this transformation. This strategy was applied to the resolution of 2-hydroxycyclohexanecarbonitrile in which the 1R,2S enantiomer was isolated in 35 % ee (73 % yield) and the 1S,2R enantiomer in 97 % ee (23 % yield).

European Journal of Organic Chemistry published new progress about 6249-56-5. 6249-56-5 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst,Inhibitor,Natural product, name is 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride, and the molecular formula is C7H16ClNO2, Related Products of chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics