Utilizing the C4 reactive site of cyclopropyl ketones and a chiral N,N′-dioxide-scandium(III) complex as a catalyst, a concise ring-opening/cyclization/thio-Michael cascade method was developed for the synthesis of chiral benzothiazole derivatives from a simple 2-aminothiophenol material. The kinetic resolution and the origin of stereoselectivity were elucidated via a possible catalytic model.
利用环丙基酮的C4反应位和手性N,N'-二氧化物-scan(III)配合物作为催化剂,开发了一种简明的开环/环化/
硫代-迈克尔级联方法,用于从中合成手性
苯并噻唑衍
生物一种简单的2-
氨基
硫酚材料。通过可能的催化模型阐明了动力学拆分和立体选择性的起源。