Highly enantioselective alkynylation of aldehydes catalyzed by a new oxazolidine–titanium complex
作者:Zhou Xu、Jincheng Mao、Yawen Zhang
DOI:10.1039/b719624e
日期:——
The readily available and inexpensive new chiral oxazolidine in combination with Ti(O(i)Pr)(4) was found to catalyze the reaction of an alkynylzinc reagent with various types of aldehydes to generate chiral propargylic alcohols with high enantioselectivities (up to 95%) and excellent yields (up to 98%).
发现容易获得且便宜的新型手性恶唑烷与Ti(O(i)Pr)(4)的结合催化炔基锌试剂与各种类型的醛的反应生成对映体选择性高(高达95%的手性炔丙醇) )和出色的收率(高达98%)。