Syntheses of Benzo[<i>b</i>]furan-6-carbonitrile and 6-Cyanobenzo[<i>b</i>]furan-2-boronic Acid Pinacol Ester
作者:John D. Williams、Xiaoyuan Ding、Son Nguyen、Kimberly K. Vines、Norton P. Peet
DOI:10.1080/00397911.2012.684086
日期:2013.7.18
Abstract 6-Cyanobenzo[b]furan-2-boronic acid pinacol ester (10) is a potentially useful two-point scaffold for the construction of specific compounds or compound libraries with benzofuran cores. Using a per-iodination/de-iodination strategy coupled with Sonogashira alkynylation and Cu-catalyzed heteroannulation, we have developed a procedure that allows the preparation of benzo[b]furan-6-carbonitrile