Synthetic Equivalents for Benzo- and Naphthothietes
作者:Herbert Meier、Axel Mayer
DOI:10.1055/s-1996-4211
日期:1996.3
Benzo-condensed 1,3-oxathiin-2-ones 4, 8, 11, 14 were prepared according to the reaction sequences shown in the Schemes 1 and 3. Due to the facile thermal extrusion of CO2 these compounds proved to be very useful synthetic thiete equivalents for the preparation of heterocyclic ring systems containing sulfur. Some examples of hetero Diels-Alder reactions are compiled in the Schemes 2 and 4.