Ni-catalyzed cross-electrophile coupling of α-hydroxy carbonyl compound-derived oxalates with vinyl triflates
作者:Xianghua Tao、Ken Yao、Weichao Xue
DOI:10.1016/j.tetlet.2021.153129
日期:2021.6
A nickel-catalyzed reductive vinylation of α-hydroxy carbonyl compound-derived C–O electrophiles to access β,γ-unsaturated carbonyl compounds is reported here. By this method, a library of vinyl triflates can serve as vinylating reagents, while various alkyl oxalates undergo C–O bond fragmentation to provide α-carbonyl radicals. This work expands the scope of cross-electrophile coupling reactions that
本文报道了镍催化的 α-羟基羰基化合物衍生的 C-O 亲电试剂的还原乙烯基化反应,以获取 β,γ-不饱和羰基化合物。通过这种方法,乙烯基三氟甲磺酸酯库可以作为乙烯基化试剂,而各种草酸烷基酯进行 C-O 键断裂以提供 α-羰基自由基。这项工作扩展了交叉亲电偶联反应的范围,该反应采用两种低毒的 C-O 亲电试剂作为偶联伙伴。