Synthesis of 4,5,6,7-tetrahydrobenzoxazol-2-ones by a highly regioselective Diels-Alder cycloaddition of exo-oxazolidin-2-one dienes with chalcones
作者:Salvador Mastachi-Loza、Tania I. Ramírez-Candelero、Asenet Tapia-Bustamante、Carlos González-Romero、Eduardo Díaz-Torres、Joaquín Tamariz、Rubén A. Toscano、Aydeé Fuentes-Benítes
DOI:10.1016/j.tetlet.2019.04.027
日期:2019.5
The synthesis of novel of 4,5,6,7-tetrahydrobenzoxazol-2-ones is herein reported. They were obtained in moderate to good yields by a highly regio- and stereoselective Diels-Alder cycloaddition of N-substituted exo-oxazolidin-2-one dienes with chalcones or bis-chalcones as dienophiles.