Enantioselective Diels-Alder reaction of .alpha.-bromo-.alpha.,.beta.-enals with dienes under catalysis by CAB
作者:Kazuaki Ishihara、Qingzhi Gao、Hisashi Yamamoto
DOI:10.1021/jo00076a070
日期:1993.11
Kuendig, Ernst Peter; Bourdin, Bernadette; Bernardinelli, Gerald, Angewandte Chemie, 1994, vol. 106, # 18, p. 1931 - 1934
作者:Kuendig, Ernst Peter、Bourdin, Bernadette、Bernardinelli, Gerald
DOI:——
日期:——
Catalytic Enantioselective Diels−Alder Reaction in Ionic Liquid via a Recyclable Chiral In(III) Complex
作者:Fan Fu、Yong-Chua Teo、Teck-Peng Loh
DOI:10.1021/ol062481i
日期:2006.12.1
A recyclable, air-and moisture- stable chiral indium complex in [hmim][ PF6-] ionic liquid has been developed. The cycloaddition of a variety of cyclic and open- chained dienes to 2-methacrolein and 2- bromoacrolein resulted in good yields and excellent enantioselectivities ( up to 98% ee). Moreover, the chiral In( III) complex can be reused for seven successive cycles with comparable enantioselectivities and yields without loss of catalytic activity.
A new chiral ligand for the Fe–Lewis acid catalysed asymmetric Diels–Alder reaction
作者:Marion E. Bruin、E. Peter Kündig
DOI:10.1039/a806445h
日期:——
The readily accessible enantiopure hydrobenzoin forms the backbone of the new bidentate ligand BIPHOP-F that is shown here to provide the chiral environment for a highly enantioselective FeâLewis acid catalysed DielsâAlder reaction between α,β-enals and dienes.