Abstract A convenient and facile synthesis of phenacyl esters is reported by the reaction of phenacyl bromide with potassium salts of aromatic acids in the presence of β‐cyclodextrin in water under neutral conditions. IICT Communication 050211.
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.
I<sub>2</sub>/TBHP-mediated oxidative coupling of ketones and toluene derivatives: a facile method for the preparation of α-benzoyloxy ketones
作者:Cui Chen、Weibing Liu、Peng Zhou、Hailing Liu
DOI:10.1039/c7ra02298k
日期:——
An efficient oxidative approach was developed for the α-benzoyloxylation of ketones using tert-butyl hydroperoxide (TBHP). This process provided facile access to a wide range of α-benzoyloxy ketones in good to excellent yields via the direct oxidative α-benzoyloxylation of a structurally diverse series of ketones using simple arylmethane compounds.
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).
The reactions of phenacyl benzoates, X–C6H4COCH2OCOC6H4–Y (1a–i), with trialkylphosphites (2a–c) giving dialkyl 1-arylvinyl phosphates (3a–d) in high yields were studied kinetically using the GLC technique. The overall reactions are second order, and exhibit a moderate solvent effect and catalysis upon the addition of certain organic acids. The activation energy, Ea=16.5 kcal/mol, and entropy, ΔS\eweq=−38