Ethanol as a Hydrogenating Agent: Palladium-Catalyzed Stereoselective Hydrogenation of Ynamides To Give Enamides
作者:Alla Siva Reddy、K. C. Kumara Swamy
DOI:10.1002/anie.201702277
日期:2017.6.6
as a hydrogenating agent for ynamides under palladium catalysis. This behavior is different from the normally expected reaction of ethanol addition to alkynes. The reaction shows stereoselectivity for E enamides, which is in contrast to reports using other hydrogenating sources. The method was also extended to ynamines. Alternatively, the use of ethanol and ammonium formate as the hydrogenating source
乙醇在钯催化下可作为乙酰胺的氢化剂。此行为与通常将乙醇加成炔烃的预期反应不同。该反应显示出对E 烯酰胺的立体选择性,这与使用其他氢化源的报道相反。该方法还扩展到了ynamines。或者,使用乙醇和甲酸铵作为氢化源得到Z- 酰胺。通过氘标记实验证明了乙醇在氢化反应中的作用。