Efficient synthesis of 5,8-disubstituted-1,4-dihydrobenzoxathiin-3-oxides and their isomeric structures, 4,7-disubstituted-1,3-dihydrobenzo[b] thiophene-2,2-dioxides
作者:Giorgio Attardo、Wuyi Wang、Jean-Louis Kraus、Bernard Belleau
DOI:10.1016/s0040-4039(00)76956-5
日期:1994.7
Functionalized dihydrobenzoxathiin oxides and dihydrobenzothiophene-2,2-dioxides 11-18 have been prepared via trapping of sulfur dioxide under photolytic or ground state conditions.