55153-26-9Relevant academic research and scientific papers
NBu4NI-catalyzed α-benzoxylation of ketones with terminal aryl alkenes
Mondal, Buddhadeb,Sahoo, Subas Chandra,Pan, Subhas Chandra
, p. 3135 - 3140 (2015/05/13)
A metal-free protocol for the α-benzoxylation of ketones has been developed by using terminal aryl alkenes 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. An efficient synthesis for the α-benzoxylation of aryl ketones has been developed by using terminal aryl alkenes as the arylcarboxy surrogate. The products were obtained in moderate to good yields for a broad scope of substrates. Tetra-n-butylammonium iodide (TBAI) and tert-butyl hydroperoxide (TBHP) were employed as the catalyst and oxidant, respectively.
ONE STEP PROCESS FOR REGIOSELECTIVE SYNTHESIS OF α-ACYLOXY CARBONYLS
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Page/Page column 7; 8; 9; 15, (2015/01/06)
A regioselective N-Heterocyclic Carbene (NHC) catalyzed one step process for high yield synthesis of α-acyloxy carbonyl compounds is disclosed.
N-Heterocyclic carbene catalyzed regioselective oxo-acyloxylation of alkenes with aromatic aldehydes: A high yield synthesis of α-acyloxy ketones and esters
Reddi, Rambabu N.,Malekar, Pushpa V.,Sudalai, Arumugam
supporting information, p. 6477 - 6482 (2013/09/24)
An N-heterocyclic carbene (NHC)-catalyzed reaction of alkenes with aromatic aldehydes 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.
NHCs-mediated benzoates formation directly from aromatic aldehydes and alkyl halides
Li, Yi,Du, Wenting,Deng, Wei-Ping
experimental part, p. 3611 - 3615 (2012/06/15)
A NHCs-mediated benzoates formation was developed by treatment of aromatic aldehydes with alkyl halides in the presence of oxygen. Corresponding benzoate derivatives were obtained in high yields up to 99%. The reaction mechanism was also discussed and a NHCs-mediated O-alkylation and subsequent oxidation process was proposed.
One-pot synthesis of phenacyl esters from acetophenone, [Bmim]Br 3, and potassium salts of carboxylic acids under solvent-free conditions
Le, Zhang-Gao,Xie, Zong-Bo,Xu, Jian-Ping
experimental part, p. 743 - 747 (2009/06/28)
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. Copyright Taylor & Francis Group, LLC.
Organic Reactions in Ionic Liquids: Ionic Liquid-Accelerated Nucleophilic Substitution Reaction of α-Tosyloxyketones with Potassium Salts of Aromatic Acids
Liu, Zhi,Chen, Zhen-Chu,Zheng, Qin-Guo
, p. 33 - 36 (2007/10/03)
The room temperature ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]) is used as a 'green' recyclable alternative to classical molecular solvents for the nucleophilic substitution reaction of α-tosyloxy ketones with pota
Convenient syntheses of 2-alkyl(Aryl)-4,5-diphenyloxazoles and 2-alkyl(Aryl)-4-phepyloxazoles
Pei, Weiwei,Li, Shaohui,Nie, Xiaoping,Li, Yiwei,Pei, Jian,Chen, Bingzi,Wu, Jie,Ye, Xiulin
, p. 1298 - 1304 (2007/10/03)
The synthetic methods to prepare 2-alkyl(aryl)-4,5-diphenyloxazoles and 2-alkyl(aryl)-4-phenyloxazoles were improved on the basis of a mechanistic study of oxazole formation from α-hydroxy ketones (carboxylic esters of benzoin and phenacyl alcohols). By these methods, seven trisubstituted oxazoles and twelve disubstituted oxazoles of the title compounds were prepared.
CONVENIENT SYNTHESIS AND FACILE CLEAVAGE OF PHENACYL ESTERS
Huang, Zhizhen,Xie, Linghong,Huang, Xian
, p. 1167 - 1170 (2007/10/02)
A convenient synthesis of phenacyl esters and a facile cleavage of them with sodium hydrogen telluride are described.
KINETICS OF REACTION OF TRIETHYLAMMONIUM CARBOXYLATES WITH α-HALOGENOCARBONYL COMPOUNDS IN ORGANIC SOLVENTS. REACTION OF BENZOATES AND PHENOXYACETATES WITH PHENACYL BROMIDE IN ACETONE
Pillay, M. Krishna,Kannan, K.,Ramasubramanian, P.
, p. 3899 - 3908 (2007/10/02)
The kinetics of the reaction of phenacyl bromide with triethylammonium p-substituted benzoates and phenoxyacetates at 25 deg C, 30 deg C and 35 deg C in acetone suggest a rigid cyclic transition state involving a hydrogen bonded ion-pair as the active nuc
