NHC–copper hydrides as chemoselective reducing agents: catalytic reduction of alkynes, alkyl triflates, and alkyl halides
作者:Nick Cox、Hester Dang、Aaron M. Whittaker、Gojko Lalic
DOI:10.1016/j.tet.2014.04.004
日期:2014.7
as well as the NHC–copper-catalyzed reduction of primary alkyl triflates and primary and secondary alkyl iodides and bromides are described. The high chemoselectivity demonstrated in these examples illustrates the mild nature of copper hydride complexes as reducing agents, which have applications in synthetic chemistry beyond their traditional role in the reduction of activated alkenes and carbonyl compounds
介绍了NHC-铜催化的末端炔和内部炔的Z选择性半还原,以及NHC-铜催化的伯烷基三氟甲磺酸酯,伯和仲烷基碘和溴化物的还原。这些实施例中证明的高化学选择性说明了氢化铜络合物作为还原剂的温和性质,其在合成化学中的应用超出了它们在还原活化烯烃和羰基化合物方面的传统作用。