As an approach to the enantioselective synthesis of trans-decahydroquinolines (DHQs), desymmetrization of meso-aziridine (5) with various carbon nucleophiles under catalytic conditions was investigated. By applying TMSCN in the presence of YbCl3 and chiral non-racemic ligands, nitrile 13 was obtained with an ee up to 40%. Nitrile 13 was a key intermediate in a novel route to trans-DHQs.
作为对手性选择性合成反式-十氢喹啉(DHQs)的一种方法,研究了在催化条件下使用各种碳亲核试剂对中间体meso-环氧丙烷(5)进行非对称化。通过在非拉丁手性配体存在下加入TMSCN和YbCl3,得到了具有最高达40% ee的腈13。腈13是一条新路线中的关键中间体,用于合成反式-DHQs。