Exposure of a variety of mono- and disubstituted ortho-alkenylarylboronic acids to NBS in THF/ H2O under neutral conditions affords bromo-boronolactones, in some instances, with exceptional regiocontrol. The adducts, analogous to those formed by carboxylic acids, are shown to be useful synthetic intermediates.
Exposure of a variety of mono- and disubstituted ortho-alkenylarylboronic acids to NBS in THF/ H2O under neutral conditions affords bromo-boronolactones, in some instances, with exceptional regiocontrol. The adducts, analogous to those formed by carboxylic acids, are shown to be useful synthetic intermediates.
作者:J. R. Falck、Muralidhar Bondlela、Sylesh K. Venkataraman、Dale Srinivas
DOI:10.1021/jo015838z
日期:2001.10.1
Exposure of a variety of mono- and disubstituted ortho-alkenylarylboronic acids to NBS in THF/ H2O under neutral conditions affords bromo-boronolactones, in some instances, with exceptional regiocontrol. The adducts, analogous to those formed by carboxylic acids, are shown to be useful synthetic intermediates.