(PERHALOMETHYLTHIO)HETEROCYCLES .10. ACID-CATALYZED SUBSTITUTIONS ON "(PERCHLOROFLUOROMETHYLTHIO)PYRROLES AND THEIR AGRO-BIOLOGICAL ACTIVITIES

被引:22
作者
DORN, S [1 ]
EGGENBERG, P [1 ]
GERSTENBERGER, MRC [1 ]
HAAS, A [1 ]
NIEMANN, U [1 ]
ZOBRIST, P [1 ]
机构
[1] RUHR UNIV BOCHUM,LEHRSTUHL ANORGAN CHEM 2,D-4630 BOCHUM,FED REP GER
关键词
D O I
10.1002/hlca.19790620508
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Perhalomethylthio)heterocycles. X . Acid‐catalyzed substitutions on (perchlorofluoromethylthio)pyrroles and their agro‐biological activities In the presence of C4F9SO3H the (perhalomethylthio)pyrroles 1a–c react with Cl3−nFnCSCl (n = 1–3) to give mixtures of the 2,5‐ and 2,4‐disubstituted pyrroles 2a–f and 3a–h. 2a and 3a react with CF3SCl (catalyst CF3SO3H) yielding 2,3,5‐tris (trifloromethylthio)pyrrole (4a), which under similar conditions reacts further to give 2,3,4,5‐tetrakis (trifluoromethylthio)pyrrole (5). As a by‐product during the conversion of 3a to 4a 2,3,4‐tris (trifluoromethylthio)pyrrole (4b) is formed. The pyrroles 2a, 4a and 5 form the mercury salts 6a–c; compound 5 yields also a silver salt 7. The 1H‐ and 19F‐NMR. spectra are discussed and the agro‐biological properties of the compounds investigated. Copyright © 1979 Verlag GmbH & Co. KGaA, Weinheim
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页码:1442 / 1450
页数:9
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