Zi-Chao Wang, Di Shen, Jian Gao, Xian Jia, Youjun Xu and Shi-Liang Shi
Chem. Commun., 2019,55, 8848-8851
DOI:
10.1039/C9CC03459E,
Communication
An unprecedented base-catalysed reductive relay hydroboration of allylic alcohols is described. Commercially available nBuLi was found to be a robust transition metal-free initiator for this protocol, affording various boronic esters in high yield and selectivity. Mechanistically, this methodology involves a one-pot three-step successive process (dehydrocoupling/allylic hydride substitution/anti-Markovnikov hydroboration).