Results 11 to 20 of about 1,046,258 (263)

Cobalt-Catalyzed Tandem Deamination, Decarboxylation, and Dehomologation of Primary Amines to Carboxylic Acids in Water [PDF]

open access: yes, 2022
Selective transformation of carboxylic acids through oxidative deamination of primary amines is a catalytically challenging and useful transformation. Herein, we present a simple protocol for the transformation of primary amines to carboxylic acids with ...
Deep, Chowdhury, Arup, Mukherjee
core   +2 more sources

SHORT-CHAIN CARBOXYLIC-ACIDS, A NEW CLASS OF TERATOGENS - STUDIES OF POTENTIAL BIOCHEMICAL-MECHANISMS [PDF]

open access: yes, 1986
Certain short-chain carboxylic acids (SCCA) appear to share a common teratogenic potential, although the structural requirements for activity remain obscure.
Coakley, ME   +8 more
core   +3 more sources

Conversion of carboxylic acids to potassium acyltrifluoroborates (KATs) by Cu-catalyzed borylation of mixed anhydrides [PDF]

open access: yes, 2021
We report the preparation of potassium acyltrifluoroborates (KATs) from widely-available carboxylic acids. Mixed anhydrides of carboxylic acids were prepared using isobutyl chloroformate and transformed to the corresponding KATs using a commercial copper
Neal, Mankad   +4 more
core   +1 more source

Unexpected Isomerization of Oxetane-Carboxylic Acids [PDF]

open access: yes, 2022
[Image: see text] Many oxetane-carboxylic acids were found to be unstable. They easily isomerized into new (hetero)cyclic lactones while being stored at room temperature or slightly heated.
Rudenko, Tymofii V.   +17 more
core   +2 more sources

Conversion of carboxylic acids to amides under the action of tantalum(V) chloride [PDF]

open access: yes, 2021
It was found that the reaction of aliphatic carboxylic acids with secondary amines under the action of tantalum (V) chloride leads to the selective formation of carboxamides.
Aliya, Amirova   +5 more
core   +1 more source

Visible-light-induced aerobic photocatalytic oxidation of alcohols to carboxylic acids over practical NaBr/NH2-MIL-125(Ti) catalyst system [PDF]

open access: yes, 2022
Carboxylic acids, as a fundamental raw material, are widely used in the production of fine chemicals. Herein, we developed the oxidation of alcohols to carboxylic acids under visible light irradiation at room temperature by devising a duplex NH2-MIL-125 ...
Xiuzhi, Wei, Jianguo, liu, Longlong, Ma
core   +1 more source

Carboxylic acids - snapshot

open access: yes, 2022
A carboxylic acid is an organic acid that contains a carboxyl group (C(=O)OH) attached to an R-group. The general formula of a carboxylic acid is R−COOH or R−CO2H, with R referring to the alkyl, alkenyl, aryl, or other group.
Małgorzata Wolniewicz
core   +1 more source

Stable D-xylose ditriflate in divergent syntheses of dihydroxy prolines, pyrrolidines, tetrahydrofuran-2-carboxylic acids, and cyclic sugar -amino acids [PDF]

open access: yes, 2022
Double nucleophilic displacement of a sugar D-xylose ditriflate derived from diacetone-D-glucose by amines, water and alkyl cyanoacetates gave a series of bicyclic divergent intermediates for the synthesis of a wide range of highly functionalized targets,
Soufian, El Ayadi   +17 more
core   +1 more source

Facile, green, and functional group-tolerant reductions of carboxylic acids…in water [PDF]

open access: yes, 2022
Facile reductions of carboxylic acids to aldehydes or alcohols can be effected under mild conditions upon initial conversion to their corresponding S-2-pyridyl thioesters.
Bruce, Lipshutz   +2 more
core   +2 more sources

Mechanochemical-Assisted Decarboxylative Sulfonylation of α,β-Unsaturated Carboxylic Acids with Sodium Sulfinate Salts [PDF]

open access: yes, 2023
Developing a green and efficient method for synthesizing vinyl sulfones is challenging and highly desirable. We hereby report a green, sustainable, and unprecedented mechanochemical-assisted approach for the decarboxylative sulfonylation of α,β ...
Barakha , Saxena   +3 more
core   +2 more sources

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