作者:Sirinporn Thamapipol、Gérald Bernardinelli、Céline Besnard、E. Peter Kündig
DOI:10.1021/ol1019103
日期:2010.12.17
Single point binding ruthenium Lewis acid catalysts [Ru(acetone)(S,S)-BIPHOP-F)Cp][SbF6] ((S,S)-1b) and [Ru(acetone)(S,S)-BIPHOP-F)(indenyl)][SbF6] ((S,S)-1c) efficiently catalyze intramolecular Diels−Alder (IMDA) reactions under mild conditions to afford the endo cycloaddition products as the major product in excellent yields with high diastereo- and enantioselectivities.
单点结合钌路易斯酸催化剂[Ru(丙酮)(S,S)-BIPHOP-F)Cp] [SbF 6 ]((S,S)-1b)和[Ru(丙酮)(S,S)-BIPHOP -F)(茚基)] [的SbF 6 ]((小号,小号) - 1C)有效催化分子内狄尔斯-阿尔德(IMDA)在温和的条件,得到下反应内切环加成产物,如结合高diastereo-极高的产率主要产物和对映选择性。