v-Triazolines. Part 7. 3-Arylaminothiophens from hexahydrothiopyrano[3,4-d]-v-triazoles
作者:Donato Pocar、Luisa Maria Rossi、Riccardo Stradi、Pasqualina Trimarco
DOI:10.1039/p19770002337
日期:——
tetrahydrothiopyran-4-one with secondary amines and aryl azides. 1-aryl-7a-amino-1,3a,4,6,7,7a-hexahydrothiopyrano[3,4-d]-v-triazoles (2) were obtained. On heating with acids, compounds (2) afforded mixtures of the corresponding 3-arylamino-2-methylthiophen (3) and 1-aryl-1,4,6,7-tetrahydrothiopyrano[3,4-d]-v-triazole (4). The triazoles (4) were also obtained on heating compounds (2) with sodium hydroxide in methanol
通过用仲胺和芳基叠氮化物处理四氢噻喃-4-酮。1-芳基7A氨基1,3A,4,6,7,7a-hexahydrothiopyrano [3,4 d - ] v得到-triazoles(2)。上与酸,(2)化合物,得到相应的3-芳基氨基-2-甲基噻(3)和1-芳基-1,4,6,7- tetrahydrothiopyrano [3,4的混合物加热d ] - v -三唑( 4)。通过在甲醇中用氢氧化钠加热化合物(2),也获得了三唑(4)。3,6-Dihydro-4-morpholino-2 H -thiopyran(6)用4-硝基苯基磺酰基叠氮化物处理,得到4-morpholino-3-(4-nitrophenylsulphonylamino)-3,6-dihydro-2 H -thiopyran(7) 。讨论了反应机理。