CYCLOADDITION ELIMINATION-REACTIONS OF PHENYLISOCYANATE WITH OXO AND THIONO DERIVATIVES OF ALIPHATIC SUBSTITUTED 5-IMINO-1,2,4-DITHIAZOLIDINES AND 3-THIONO-1,2,4-THIADIAZOLIDINES (MUSTARD OIL OXIDES AND SULFIDES)

被引:1
作者
TITTELBACH, F
SCHELLHAAS, A
机构
[1] Zentralinstitut Für Organische Chemie, Berlin, O-1199
来源
JOURNAL FUR PRAKTISCHE CHEMIE-CHEMIKER-ZEITUNG | 1992年 / 334卷 / 08期
关键词
D O I
10.1002/prac.19923340808
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
5-Imino-1,2,4-dithiazolidin-3-ones 1 and -3-thiones 3 react with phenylisocyanate to afford 5-imino-1,2,4-thiadiazolidin-3-ones 6. In comparison isomeric 3-thiono-1,2,4-thiadiazolidin-5-ones 2, 5, and -5-thiones 4 yield 3-imino-1,2,4-thiadiazolidin-5-ones 8, 10, and -5-thiones 7. Thermolyses of thiadiazolidines 5 and 10 afford further 1,2,4-thiadiazolidines 9, 11. Compounds 8 - 11 are available also by reaction of substituted guanidines with chlorocarbonyl sulfenylchloride.
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页码:685 / 690
页数:6
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