Highly Diastereoselective Pinacol Coupling of Secondary Aliphatic Aldehydes Induced by a Catalytic System Consisting of Vanadium Complex, Chlorosilane, and Zinc Metal
Facile pinacol coupling of aliphatic ketones by Brook rearrangement in the presence of samarium species
作者:Xincan Wang、Guanqun Xie、Yanfei Zhao、Ke Zheng、Yanxiong Fang、Xiaoxia Wang
DOI:10.1016/j.tetlet.2021.153069
日期:2021.5
Herein we report a practical pinacol coupling reaction, in which ketones (aldehydes) react smoothly with Sm and TMSBr to afford the diol products with Sm(II) or (III) siliyl species generated in situ. This reported method affords poor yields for aromatic ketone substrates and good yields for aliphaticketones. Therefore, it distinguishes from most reductive coupling approaches that are more effective for