发明授权
US4057546A 4-Amino-1,2,4-triazin-5-ones 失效
4-氨基-1,2,4-三嗪-5-酮

4-Amino-1,2,4-triazin-5-ones
摘要:
Novel glyoxylic acid hydrazide-2-acylhydrazones of the formula: ##STR1## in which R.sup.1 is hydrogen or alkyl, andR.sup.2 is alkyl or optionally substituted phenylAnd are prepared by reacting the corresponding glyoxylic acid ester 2-acylhydrazone with hydrazine hydrate. The compounds (I) are useful in preparing herbicidally active 4-amino-1,2,4-triazine-5-one compounds.
公开/授权文献
信息查询
0/0