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Synthesis of novel herbicidal sulfonylureas
Author(s) -
GuangFu Yang,
HuaZheng Yang
Publication year - 2000
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20000180425
Subject(s) - chemistry , sulfonylurea , regioselectivity , thio , aryl , pyrazole , elemental analysis , combinatorial chemistry , proton nmr , stereochemistry , organic chemistry , catalysis , diabetes mellitus , medicine , alkyl , endocrinology
Novel sulfonylurea derivatives containing five‐membered heterocycle 3a—1 and 4a—d were synthesized in good yields by the regioselective addition of aryl sulfonylisocyanates 1 to 5‐amino‐3‐benzyl(aryl) thio‐1,2,4‐triazoles and its pyrazole analogues 2. The structures of all these compounds were evaluated by elemental analyses and 1 H NMR spectroscopy. The preliminary biological tests showed that the products displayed herbicidal activity against rape to some extent.