Efficient acetylation and benzoylation of alcohols and phenols with acetic and benzoic anhydrides have been carried out under catalysis of bismuth(III) salts including BiCl3, Bi(TFA)3 and Bi(OTf)3. Selective acetylation and benzoylation of alcohols in the presence of phenols is an additional advantage of this procedure.
Cu(<scp>ii</scp>)-catalyzed esterification reaction via aerobic oxidative cleavage of C(CO)–C(alkyl) bonds
作者:Ran Ma、Liang-Nian He、An-Hua Liu、Qing-Wen Song
DOI:10.1039/c5cc09146b
日期:——
Novel Cu(II)-catalyzed aerobic oxidative esterification of simple ketones for the synthesis of esters has been developed with wide functional group tolerance. This process is assumed to go through a tandem...
Catalytic conversion of ketones to esters <i>via</i> C(O)–C bond cleavage under transition-metal free conditions
作者:Murugan Subaramanian、Palmurukan M. Ramar、Jagannath Rana、Virendra Kumar Gupta、Ekambaram Balaraman
DOI:10.1039/d0cc03312j
日期:——
The catalytic conversion of ketones to esters via C(O)–C bond cleavage under transition-metal free conditions is reported. This catalytic process proceeds under solvent-free conditions and offers an easy operational procedure, broad substrate scope with excellent selectivity, and reaction scalability.
Cu-Catalyzed Esterification Reaction via Aerobic Oxygenation and C–C Bond Cleavage: An Approach to α-Ketoesters
作者:Chun Zhang、Peng Feng、Ning Jiao
DOI:10.1021/ja4085463
日期:2013.10.9
The Cu-catalyzed novel aerobic oxidativeesterification reaction of 1,3-diones for the synthesis of α-ketoesters has been developed. This method combines C-C σ-bond cleavage, dioxygen activation and oxidative C-H bond functionalization, as well as provides a practical, neutral, and mild synthetic approach to α-ketoesters which are important units in many biologically active compounds and useful precursors
已开发出用于合成 α-酮酯的 Cu 催化的新型 1,3-二酮有氧氧化酯化反应。该方法结合了 CC σ-键裂解、双氧活化和氧化 CH 键功能化,并为 α-酮酯提供了一种实用、中性和温和的合成方法,α-酮酯是许多生物活性化合物中的重要单元和各种有用的前体。功能组转换。在机理研究的基础上提出了一个合理的激进过程。
Flow chemistry as a discovery tool to access sp<sup>2</sup>–sp<sup>3</sup>cross-coupling reactions via diazo compounds
作者:Duc N. Tran、Claudio Battilocchio、Shing-Bong Lou、Joel M. Hawkins、Steven V. Ley
DOI:10.1039/c4sc03072a
日期:——
The room temperature sp2–sp3cross-coupling of flow-generated diazo compounds with boronic acids is reported.