[EN] ONE STEP PROCESS FOR REGIOSELECTIVE SYNTHESIS OF α-ACYLOXY CARBONYLS<br/>[FR] PROCÉDÉ EN UNE ÉTAPE POUR LA SYNTHÈSE RÉGIOSÉLECTIVE D'&Agr;-ACYLOXY CARBONYLES
申请人:COUNCIL SCIENT IND RES
公开号:WO2014195972A1
公开(公告)日:2014-12-11
A regioselective N-Heterocyclic Carbene (NHC) catalyzed one step process for high yield synthesis of α-acyloxy carbonyl compounds is disclosed.
揭示了一种选择性区域N-杂环卡宾(NHC)催化的一步法,用于高产率合成α-酰氧羰基化合物。
A Rapid and Facile Esterification of Na-Carboxylates with Alkyl Halides Promoted by the Synergy of the Combined Use of DMSO and an Ionic Liquid Under Ambient Conditions
作者:Satish N. Dighe、Ravindra V. Bhattad、Raghunath R. Kulkarni、Kishor S. Jain、Kumar V. Srinivasan
DOI:10.1080/00397910903457357
日期:2010.11.3
The synergy of the combined use of DMSO and an ionic liquid viz. (bbim)+Br− has brought about a rapid and efficient esterification of sodium carboxylates with acyl and alkyl halidesunder ambient conditions in excellent isolated yields (90–95%) in short reaction times (12–40 min).
I<sub>2</sub>-Catalyzed Regioselective Oxo- and Hydroxy-acyloxylation of Alkenes and Enol Ethers: A Facile Access to α-Acyloxyketones, Esters, and Diol Derivatives
作者:Rambabu N. Reddi、Pragati K. Prasad、Arumugam Sudalai
DOI:10.1021/ol5027393
日期:2014.11.7
I-2-catalyzed oxo-acyloxylation of alkenes and enol ethers with carboxylic acids providing for the high yield synthesis of a-acyloxyketones and esters is described. This unprecedented regioselective oxidative process employs TBHP and Et3N in stoichiometric amounts under metal-free conditions in DMSO as solvent. Additionally, I-2-catalysis allows the direct hydroxy-acyloxylation of alkenes with the sequential addition of BH3 center dot SMe2 leading to monoprotected diol derivatives in excellent yields.
ONE STEP PROCESS FOR REGIOSELECTIVE SYNTHESIS OF ALPHA-ACYLOXY CARBONYLS
申请人:COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
公开号:US20160115182A1
公开(公告)日:2016-04-28
A regioselective N-Heterocyclic Carbene (NHC) catalyzed one step process for high yield synthesis of α-acyloxy carbonyl compounds is disclosed.