Affiliation:
1. College of Chemical Engineering and Materials Science Quanzhou Normal University Quanzhou Fujian 362000 P. R. China
Abstract
AbstractA fast and facile protocol for the sulfenylative spirocyclization of biaryl ynones employing PIFA under mild conditions is reported. A range of sulfenylated spiro[5.5]trienones were obtained in moderate to good yields. This transformation involves a radical process via a 6‐exo‐trig dearomative spirocyclization procedure. This method can be extended to the synthesis of selenium or tellurium‐substituted spiro[5.5]trienone.