Three-Component Borylallenylation of Alkynes: Access to Densely Boryl-Substituted Ene-allenes
作者:Shang-Hai Yu、Tian-Jun Gong、Yao Fu
DOI:10.1021/acs.orglett.0c00643
日期:2020.4.17
organic synthesis, and the development of their efficient preparation is valuable. Herein the synthesis of boryl-substituted ene-allenes utilizing a Cu/Pd-catalyzed borylallenylation of alkynes with propargylic carbonates and bis(pinacolato)diboron is reported. Densely (tetra-, penta-, and hexa-) substituted ene-allenes were synthesized in acceptable yield with highregio- and stereoselectivity. More