An improved synthesis of 1,2-benzisoxazoles: TBAF mediated 1,3-dipolar cycloaddition of nitrile oxides and benzyne

作者:Spiteri Christian; Sharma Pallavi; Zhang Fengzhi; Macdonald Simon J F; Keeling Steve; Moses John E*
来源:Chemical communications, 2010, 46(8): 1272-1274.
DOI:10.1039/b922489k

摘要

An efficient synthesis of a range of 1,2-benzisoxazoles using an improved 1,3-dipolar cycloaddition of nitrile oxides and benzyne is described. Key to the procedure is the in situ generation of the reactive nitrile oxide and benzyne reaction partners mediated by TBAF. Reactions are complete within 30 s, giving the target products in good to excellent yield.

  • 出版日期2010