2611-02-1Relevant articles and documents
Metal complex catalysts and method for catalytically reducing carboxylic acids
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Paragraph 0156; 0165; 0166; 0178-0179, (2020/06/20)
The invention relates to a metal complex catalyst, which contains at least one of metal complexes with a chemical formula comprising a structural unit represented by a formula I. According to the invention, the center metal of the metal complex catalyst is iridium, and the metal complex catalyst is composed of pentamethylcyclopentadienyl, a bitetrahydropyrimidine ligand and proper coordination anions; the metal complex catalyst has activity on a carboxylic acid reduction reaction, and a carboxylic acid compound is reduced into an alcohol compound in the presence of hydrogen; and the method ismild in reaction condition, can be carried out at room temperature, and is good in catalytic performance and high in reduction product yield.
Pd-Catalyzed Dehydrogenative Oxidation of Alcohols to Functionalized Molecules
Mori, Takamichi,Ishii, Chihiro,Kimura, Masanari
supporting information, p. 1709 - 1717 (2019/09/04)
A dehydrogenative oxidation reaction of primary alcohols to aldehydes catalyzed by a simple Pd/Xantphos catalytic system was developed under an argon or nitrogen atmosphere without oxidizing agents or hydrogen acceptors. The reaction product could be easily changed: under aerobic conditions, esters were obtained in aprotic solvents, whereas the corresponding carboxylic acids were produced in aqueous media. These oxidizing processes were applicable to the efficient synthesis of useful nitrogen-containing heterocyclic compounds such as indole, quinazoline, and benzimidazole via intramolecular versions of this reaction from amino alcohols.
Oxidative esterification of primary alcohols at room temperature under aqueous medium
Reddy, N. Naresh Kumar,Ravi, Chitrakar,Adimurthy, Subbarayappa
, p. 1663 - 1670 (2018/06/15)
Oxidative esterification of aliphatic primary alcohols with bromide and bromate couple in aqueous acidic medium at room temperature is reported with a wide range of substrate scope for both aliphatic and cyclic alcohols and obtained excellent yields of products.