Catalytic One-Pot Synthesis of Trisubstituted Allenes from Terminal Alkynes and Ketones
作者:Qi Liu、Xinjun Tang、Yujuan Cai、Shengming Ma
DOI:10.1021/acs.orglett.7b02443
日期:2017.10.6
one-pot synthesis of trisubstituted allenesfrom readily available terminal alkynes and ketones is realized. A wide range of trisubstituted allenes may be synthesized efficiently via this method. Preliminary mechanistic studies revealed that CuI and Ti(OEt)4 are in charge of the formation of propargylic amine, while ZnBr2 is responsible for the transformation from propargylic amine to allene.