Synthesis of 4-substituted 3-hydroxy-and 3-amino-6<i>H</i>-1,2,6-thiadiazine 1,1-dioxides
作者:P. Goya、M. Stud
DOI:10.1002/jhet.5570150214
日期:1978.3
Reaction of sulfamide with ethoxymethylene derivatives yielded 4-ethoxycarbonyl-, 4-cyano-, and 4-nitro-2H,6H-1,2,6-thiadiazine 1,1-dioxide. In some cases, the corresponding open chain sulfamidomethylene derivatives were isolated. Preparation of 4-amino- and 4-amino-5-methyl-2H,6H-1,2,6-thiadiazin-3-one 1,1-dioxide is also described. Reaction of sulfamide with ethyl 3,3-ethoxypropionate afforded 3
磺酰胺与乙氧基亚甲基衍生物的反应产生4-乙氧基羰基-,4-氰基-和4-硝基-2 H,6 H -1,2,6-噻二嗪1,1-二氧化物。在某些情况下,分离出相应的开链磺酰胺基亚甲基衍生物。还描述了4-氨基-和4-氨基-5-甲基-2 H,6 H -1,2,6-噻二嗪-3-酮1,1-二氧化物的制备。磺酰胺与3,3-乙氧基丙酸乙酯反应,得到3,7-双(乙氧羰基甲基)过氢-1,5,2,4,6,8-二硫代四-偶氮1,1,5,5-四氧化物。