Recent interest in ionicliquids has developed various uses for them, including some applications by synthetic chemists. Ionicliquids have joined the potential list of non-traditional solvents for Diels–Alderreactions. We report here our own efforts to examine the rates and selectivities of carbon Diels–Alderreactions. Our investigations show that excellent diastereoselective and enantioselective
Asymmetric Diels–Alder reactions of 2-fluoroacrylic acid derivatives. Part 1: The construction of fluorine substituted chiral tertiary carbon
作者:Hisanaka Ito、Akio Saito、Takeo Taguchi
DOI:10.1016/s0957-4166(98)00195-5
日期:1998.6
For the construction of chiral monofluorinated tertiary carbons, we have examined the asymmetric Diels–Alder reaction of 2-fluoroacrylic acid derivatives bearing a chiral oxazolidinone moiety. Under diethylaluminum chloride catalyzed conditions at −100°C, the reaction of 1 with isoprene proceeded smoothly with high diastereoselectivity.
Indium trichloride (InCl<sub>3</sub>) catalysed Diels–Alder reaction in water
作者:Teck-Peng Loh、Jian Pei、Mei Lin
DOI:10.1039/cc9960002315
日期:——
Indium trichloride (InCl3) is found to catalyse the Diels-Alder reaction in water; the catalyst can be easily recovered from water after the reaction is completed and can be reused.
Transesterification of N-acyloxazolidinones with alcohol by lanthanum(III) Iodide
作者:Shin-ichi Fukuzawa、Yuki Hongo
DOI:10.1016/s0040-4039(98)00521-8
日期:1998.5
Transesterification of N-acyloxazolidinones by treatment with an alcohol and lanthanum(III) iodide gives the corresponding esters in good to excellent yields under mild conditions with negligible racemization. (C) 1998 Elsevier Science Ltd. All rights reserved.
EVANS, D. A.;CHAPMAN, K. T.;BISAHA, J., J. AMER. CHEM. SOC., 110,(1988) N 4, 1238-1256