<i>n</i>Bu<sub>4</sub>NI-Catalyzed α-Benzoxylation of Ketones with Terminal Aryl Alkenes
作者:Buddhadeb Mondal、Subas Chandra Sahoo、Subhas Chandra Pan
DOI:10.1002/ejoc.201500233
日期:2015.5
A metal-free protocol for the α-benzoxylation of ketones has been developed by using terminalarylalkenes as an arylcarboxy surrogate. Moderate to good yields were attained for a variety of propiophenones and acetophenones by using tetra-n-butylammonium iodide (TBAI) as the catalyst and tert-butyl hydroperoxide (TBHP) as the oxidant under ambient reaction conditions.
N-Heterocyclic carbene catalyzed regioselective oxo-acyloxylation of alkenes with aromatic aldehydes: a high yield synthesis of α-acyloxy ketones and esters
作者:Rambabu N. Reddi、Pushpa V. Malekar、Arumugam Sudalai
DOI:10.1039/c3ob41551a
日期:——
An N-heterocyclic carbene (NHC)-catalyzed reaction of alkenes with aromaticaldehydes providing for a high yield synthesis of α-acyloxy ketones and esters has been described. This unprecedented regioselective oxidative process employs NBS and Et3N in stoichiometric amounts and O2 (1 atm) as an oxidant under ambient conditions in DMSO as a solvent.
One-Pot Synthesis of Phenacyl Esters from Acetophenone, [Bmim]Br<sub>3</sub>, and Potassium Salts of Carboxylic Acids Under Solvent-Free Conditions
作者:Zhang-Gao Le、Zong-Bo Xie、Jian-Ping Xu
DOI:10.1080/00397910802431115
日期:2009.1.28
Abstract One-pot synthesis of phenacyl esters from acetophenone, [Bmim]Br3, and potassium salts of carboxylic acids under solvent-free conditions gave the corresponding phenacyl esters with excellent yields.
[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。
Kinetics of reaction of triethylammonium carboxylates with α-halogenocarbonyl compounds in organic solvents
作者:M.Krishna Pillay、K. Kannan、P. Ramasubramanian
DOI:10.1016/s0040-4020(01)90893-2
日期:1983.1
of the reaction of phenacyl bromide with triethylammonium p-substituted benzoates and phenoxyacetates at 25°, 30° and 35° in acetone suggest a rigid cyclic transition state involving a hydrogen bonded ion-pair as the active nucleophile. The effect of addition of water on the rate constant is rationalized. Regression analysis on single parameter treatment on benzoates shows that the reaction obeys the