Institute of Inorganic Chemistry, University of Zürich, Winterthurerstr. 190, 8057 Zürich, Switzerland.
Chem Commun (Camb). 2011 Feb 21;47(7):2053-5. doi: 10.1039/c0cc03163a. Epub 2011 Jan 6.
Transfer hydrogenation of polarized olefins bearing strongly electron-withdrawing groups on one side of the double bond was achieved with ammonia borane under mild conditions without using a catalyst. Mechanistic studies proved the character of the direct H transfers proceeding stepwise with a unique hydroboration intermediate and hydride before proton transfer.
在温和条件下,无需使用催化剂,通过氨硼烷实现了带有强吸电子基团的极化烯烃在双键一侧的转移氢化。机理研究证明了直接 H 转移的特征,其通过独特的硼氢化中间物和氢化物进行逐步反应,然后再进行质子转移。