Month: December 2022

Han, Zhaomeng published the artcileFluoroform: an Efficient Precursor for the Trifluoromethylation of Aromatic Esters by Sodium Diisopropylamide with Trialkylamines, HPLC of Formula: 5860-95-7, the publication is European Journal of Organic Chemistry (2019), 2019(29), 4658-4661, database is CAplus.

The trifluoromethanide anion is the postulated key intermediate in nucleophilic trifluoromethylation reactions. It is believed to be incompatible with Na⁺ cation due to the strong Na-F bond. However, herein we demonstrate that it could be prepared for the first time. Trialkylamines can be used as cation chelating agents to stabilize the isolated ^–CF₃ ion to realize trifluoromethylation reaction. With this strategy, trifluoromethyl aromatic ketones could be effectively synthesized from fluoroform and aromatic esters with diisopropyl aminosodium (NaDA) and trialkylamines.

European Journal of Organic Chemistry 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, HPLC of Formula: 5860-95-7.

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

Wang, Peng published the artcileChemoselective Borono-Catellani Arylation for Unsymmetrical Biaryls Synthesis, COA of Formula: C13H18BClO2, the publication is Organic Letters (2019), 21(9), 3323-3327, database is CAplus and MEDLINE.

In the presence of Pd(OAc)₂ and a norbornenedicarboxylate, arylpinacolboronates such as 2-methylphenyl pinacolboronate underwent chemoselective aerobic borono-Catellani reactions with aryl bromides such as Me 2-bromobenzoate and alkenes (including α,β-unsaturated esters) such as tert-Bu acrylate to yield unsym. biaryl alkenes such as biphenylpropenoate I. In the absence of alkene, a bromophenylcarbamate underwent coupling and cyclization with 2-naphthylpinacolboronate to yield a mixture of benzocarbazoles in 45% combined yield; a bromophenol underwent coupling without cyclization.

Organic Letters published new progress about 1030832-75-7. 1030832-75-7 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Boronate Esters,Boronic acid and ester, name is 2-(4-Chloro-2-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, and the molecular formula is C18H35NO, COA of Formula: C13H18BClO2.

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

Qian, Bo published the artcileIron-Catalyzed Carboamination of Olefins: Synthesis of Amines and Disubstituted β-Amino Acids, SDS of cas: 1263414-46-5, the publication is Journal of the American Chemical Society (2017), 139(37), 13076-13082, database is CAplus and MEDLINE.

Intermol. carboamination of olefins with general alkyl groups is an unsolved problem. Diastereoselective carboamination of acyclic olefins represents an addnl. challenge in intermol. carboaminations. We have developed a general alkylamination of vinylarenes and the unprecedented diastereoselective anti-carboamination of unsaturated esters, generating amines and unnatural β-amino acids. This alkylamination is enabled by difunctional alkylating reagents and the iron catalyst. Alkyl diacyl peroxides, readily synthesized from aliphatic acids, serve as both alkylating reagents and internal oxidizing agents. A computational study suggests that addition of a nitrile to the carbocation is the diastereoselectivity-determining step, and hyperconjugation is proposed to account for the highly diastereoselective anti-carboamination.

Journal of the American Chemical Society published new progress about 1263414-46-5. 1263414-46-5 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Alkenyl,Benzene, name is 4-Chloro-3-fluorostyrene, and the molecular formula is C8H6ClF, SDS of cas: 1263414-46-5.

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

Ashkenazi, Nissan published the artcileNucleophilic Displacements in Alkylphosphonates: P-O Versus P-C Bond Cleavage. A Combined DFT and Experimental Study, Quality Control of 866-23-9, the publication is Phosphorus, Sulfur and Silicon and the Related Elements (2013), 188(1-3), 106-110, database is CAplus.

Potential energy surfaces for the nucleophilic displacements at P in di-Me Me, chloromethyl, dichloromethyl, and trichloromethyl phosphonates were computed by DFT methods. Sequential introduction of Cl substituents at the Me group in Me phosphonates increases the stability of transition states and intermediates, which facilitates P-C bond cleavage. While nonsubstituted di-Me methylphosphonate may undergo exclusive P-O bond cleavage, the trichlorinated analog reacts exclusively via P-C bond dissociation to form dichlorocarbene, which was trapped by various olefins to form the corresponding gem-dichlorocyclopropanes.

Phosphorus, Sulfur and Silicon and the Related Elements published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, Quality Control of 866-23-9.

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

Zhang, Wen published the artcileCopper-Catalyzed Arylation of Benzylic C-H bonds with Alkylarenes as the Limiting Reagents, HPLC of Formula: 871332-95-5, the publication is Journal of the American Chemical Society (2017), 139(23), 7709-7712, database is CAplus and MEDLINE.

A novel copper-catalyzed arylation of benzylic C-H bonds with nucleophilic arylboronic acids has been developed that provides an efficient way to synthesize various 1,1-diarylalkanes with a broad substrate scope and excellent functional group compatibility. The reactions occur at room temperature using alkylarenes as the limiting reagents, which allows access to the arylation of the more valuable and complex bioactive compounds

Journal of the American Chemical Society published new progress about 871332-95-5. 871332-95-5 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Nitrile,Boronic acid and ester,Benzene,Boronic Acids,Boronic acid and ester, name is (4-Chloro-3-cyanophenyl)boronic acid, and the molecular formula is C19H14N2, HPLC of Formula: 871332-95-5.

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

Yuan, Tianqi published the artcileSynthesis of camphor sulfonic acid derivatives modified Mg/Al-LDH for efficient separation of propranolol enantiomers, HPLC of Formula: 21286-54-4, the publication is Applied Clay Science (2022), 106521, database is CAplus.

Designing chiral adsorption separation material with high enantioselectivity and stability is a promising route to realize the enantioselective recognition and separation of racemic mols. Here, for the first time, camphor sulfonic acid derivatives (CSA) were synthesized as a chiral resolving agent, and it was modified on Mg/Al layered double hydroxide (Mg/Al-LDH) through electrostatic self-assembly to construct functionalized chiral adsorption separation material (CSA@LDH), which could be served as an adsorbent for enantioselective recognition and separation of propranolol enantiomers (R,S-PRO). The CSA@LDH maintained the advantage of limited chiral space in layered structures to achieve the selective enrichment of R-PRO, and the e.e.% value of single separation could reach 19.5%. Meanwhile, d. functional theory (DFT) calculations supported that chiral recognition and separation were ascribed to the discrepancy in affinities stemming from the difference of π-π interaction force and hydrogen bonding capacity of CSA with R,S-PRO. Hence, considering the superior ability of hydrogen bond coordination and stereocontrol of camphor sulfonic acid derivatives, it is expected to be more widely used as a chiral resolving agent for other enantiomeric recognition and separation

Applied Clay Science published new progress about 21286-54-4. 21286-54-4 belongs to chlorides-buliding-blocks, auxiliary class Chiral,Chloride,Sulfonyl chlorides,Aliphatic cyclic hydrocarbon,Ketone, name is ((1S,4R)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonyl chloride, and the molecular formula is C5H5BO5, HPLC of Formula: 21286-54-4.

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

Wanner, Jutta published the artcileEvaluation of amide replacements in CCR5 antagonists as a means to increase intrinsic permeability. Part 2: SAR optimization and pharmacokinetic profile of a homologous azacyle series, Product Details of C7H3Cl2NO2S, the publication is Bioorganic & Medicinal Chemistry Letters (2010), 20(22), 6802-6807, database is CAplus and MEDLINE.

Replacement of a secondary amide with a piperidine or azetidine moiety in a series of CCR5 antagonists led to the discovery of compounds with increased intrinsic permeability. This effort led to the identification of a potent CCR5 antagonist which exhibited an improved in vivo pharmacokinetic profile.

Bioorganic & Medicinal Chemistry Letters published new progress about 254749-11-6. 254749-11-6 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Nitrile,Benzene, name is 2-Chloro-4-cyanobenzene-1-sulfonyl chloride, and the molecular formula is C5H10OS, Product Details of C7H3Cl2NO2S.

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

Johnson, Sherida L. published the artcileStructure-activity relationship studies of a novel series of anthrax lethal factor inhibitors, Safety of 4-Chloro-3-(trifluoromethyl)benzenesulfonyl Chloride, the publication is Bioorganic & Medicinal Chemistry (2009), 17(9), 3352-3368, database is CAplus and MEDLINE.

We report on the identification of a novel small mol. inhibitor of anthrax lethal factor using a high-throughput screening approach. Guided by mol. docking studies, we carried out structure-activity relationship (SAR) studies and evaluated activity and selectivity of most promising compounds in in vitro enzyme inhibition assays and cellular assays. Selected compounds were further analyzed for their in vitro ADME properties, which allowed us to select two compounds for further preliminary in vivo efficacy studies. The data provided represents the basis for further pharmacol. and medicinal chem. optimizations that could result in novel anti-anthrax therapies.

Bioorganic & Medicinal Chemistry published new progress about 32333-53-2. 32333-53-2 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Sulfonyl chlorides,Benzene, name is 4-Chloro-3-(trifluoromethyl)benzenesulfonyl Chloride, and the molecular formula is C7H3Cl2F3O2S, Safety of 4-Chloro-3-(trifluoromethyl)benzenesulfonyl Chloride.

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

Li, Jiakun published the artcilePhotoredox catalysis with aryl sulfonium salts enables site-selective late-stage fluorination, Application of Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate, the publication is Nature Chemistry (2020), 12(1), 56-62, database is CAplus and MEDLINE.

Photoredox catalysis, especially in combination with transition metal catalysis, can produce redox states of transition metal catalysts to facilitate challenging bond formations that are not readily accessible in conventional redox catalysis. For arene functionalization, metallophotoredox catalysis has successfully made use of the same leaving groups as those valuable in conventional cross-coupling catalysis, such as bromide. Yet the redox potentials of common photoredox catalysts are not sufficient to reduce most aryl bromides, so synthetically useful aryl radicals are often not directly available. Therefore, the development of a distinct leaving group more appropriately matched in redox potential could enable new reactivity manifolds for metallophotoredox catalysis, especially if arylcopper(III) complexes are accessible, from which the most challenging bond-forming reactions can occur. Here we show the conceptual advantages of aryl thianthrenium salts for metallophotoredox catalysis, and their utility in site-selective late-stage aromatic fluorination.

Nature Chemistry published new progress about 637-07-0. 637-07-0 belongs to chlorides-buliding-blocks, auxiliary class Inhibitor,Cell Cycle,PPAR, name is Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate, and the molecular formula is C12H15ClO3, Application of Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate.

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

Shi, Maohu published the artcileSynthesis and spectroscopic properties of photochromic dithienylethene-functionalized subphthalocyanine conjugate, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Journal of Porphyrins and Phthalocyanines (2016), 20(8/11), 1082-1089, database is CAplus.

A subphthalocyanine-dithienylethene dyad has been synthesized and characterized by ¹H-, ¹³C-NMR, HR-MS, UV-visible and emission spectroscopy. The results show that photoinduced isomerization of dithienylethene moiety from close-form to opened form can be achieved under visible light using subphthalocyanine as a light-harvesting unit and the fluorescence properties of subphthalocyanine could be modulated by the isomerization state of the dithienylethene moiety.

Journal of Porphyrins and Phthalocyanines published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C8H7NO4, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene.

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