作者:Vera J. Meyer、Meike Niggemann
DOI:10.1002/chem.201103691
日期:2012.4.10
calcium‐catalyzed direct reduction of propargylic alcohols and ethers has been accomplished by using triethylsilane as a nucleophilic hydride source. At room temperature a variety of secondary propargylic alcohols was deoxygenated to the corresponding hydrocarbons in excellent yields. Furthermore, for the first time, a catalytic deoxygenation of tertiary propargylic alcohols was generally applicable. The
通过使用三乙基硅烷作为亲核氢化物源,可以实现钙催化的炔丙醇和醚的直接还原。在室温下,各种仲炔丙醇以优异的产率脱氧为相应的烃。此外,首次普遍使用叔炔丙醇的催化脱氧。相同的方案适用于有效还原仲炔丙基和叔炔丙基甲基,苄基和烯丙基醚。含有额外的酮基,酯基或仲羟基官能团的底物在炔丙基位置具有出色的化学选择性而被还原。