Efficient transformations of trithio- and triseleno-orthoesters into ketene dithio- and diseleno-acetals
作者:K. M. Nsunda、L. Hevesi
DOI:10.1039/c39850001000
日期:——
Sequential treatment of trithio- and triseleno-orthoesters with a Lewis acid followed by a base leads to ketenedithio- and diseleno-acetals in good yield; SnCl4 or TiCl4 and Pri2EtN or Et3N are the most efficient reagents.