Synthesis of 9-biarylfluorenes by one-pot, three-step reactions of <i>N</i>-tosylhydrazones, <i>p</i>-bromobenzeneboronic acid, and arylboronic acids
作者:Jing He、Jie Zhang、Bin Dai、Ping Liu
DOI:10.1177/1747519819859801
日期:2019.7
A one-pot, three-step reaction of N-tosylhydrazones, p-bromobenzeneboronic acid, and arylboronic acids is established for the synthesis of 9-biarylfluorenes. Sequential formation of Csp3–Csp2 bond and Csp2–Csp2 bonds using readily available starting materials leads to the 9-biarylfluorene products in good yields. The present transformation features a broad substrate scope and good functional group