Isothiazoles. Part 14: New 3-aminosubstituted isothiazole dioxides and their mono- and dihalogeno derivatives
作者:Francesca Clerici、Alessandro Contini、Maria Luisa Gelmi、Donato Pocar
DOI:10.1016/j.tet.2003.09.064
日期:2003.11
3-Alkylamino- and 3-arylamino isothiazole dioxides unsubstituted at C-4 and C-5 were synthesized starting from dithiopropionic amides. Taking advantage of the direct chlorination during the cyclization process or realizing an addition–elimination process with bromine on the final 3-aminoisothiazole dioxide derivatives, the corresponding 5-chloro-, 4,5-dichloro- or the 4-bromoisothiazole dioxides could
由二
硫代丙酰胺开始合成在C-4和C-5未取代的3-烷基
氨基-和3-芳基
氨基
异噻唑二氧化物。利用环化过程中的直接
氯化或在最终的3-
氨基
异噻唑二氧化物衍
生物上用
溴进行加成-消除过程,相应的5-
氯-,4,5-二
氯-或
4-溴异噻唑也可能是提供。