Olefin-Directed Palladium-Catalyzed Regio- and Stereoselective Hydroboration of Allenes
作者:Can Zhu、Bin Yang、Youai Qiu、Jan-E. Bäckvall
DOI:10.1002/chem.201505130
日期:2016.2.24
An olefin‐directed palladium‐catalyzed regio‐ and stereoselective hydroboration of allenes has been developed to afford fully substituted alkenylboron compounds. The reaction showed a broad substrate scope: a number of functionalized allenes, including 2,3‐dienoate, 3,4‐dienoate, 3,4‐dienol, 1,2‐allenylphosphonate, and alkyl‐substituted allenes, could be used in this olefin‐directed allene hydroboration
已经开发出烯烃定向的钯催化的烯丙基的区域和立体选择性加氢硼化,以提供完全取代的烯基硼化合物。该反应显示出较宽的底物范围:可以在此使用许多官能化的异烯,包括2,3-二烯酸酯,3,4-二烯酸酯,3,4-二烯醇,1,2-烯基膦酸酯和烷基取代的烯。烯烃定向的异戊烯硼氢化。事实证明,烯烃单元是该转化必不可少的元素。