HASEBE, HIROKAZU,HAMATANI, TAKESHI,HAYASHIZAKI, KEIICHI, TSUKUBA RESEARCH CENTRE,USUI, YOSHIHIRO, TSUKUBA RESEARCH CENTRE,YASUMOTO, CHIHARU, TSUKUBA RESEARCH CENTRE,GO, ATSUSHI, TSUKUBA RESEARCH CENTRE,HIKIDO, MITSURU, TSUKUBA RESEARCH CENTRE,TAMURA, KUMIKO, TSUKUBA RESEARCH CENTRE,JIKIHARA, KAZUO, TSUKUBA RESEARCH CENTRE
申请号：
EP19930902545
公开号：
EP0605726(A1)
申请日:
1993.01.28
申请国别(地区):
欧洲专利局
年份:
1994
代理人:
摘要：
A 1,3-oxazin-4-one derivative, represented by general formula (I), which is useful as a herbicide because it has a wide herbicidal spectrum and a potent herbicidal activity and is highly safe for useful crops, wherein R<1> represents lower alkyl, lower alkenyl, lower alkynyl, optionally substituted aryl or optionally substituted aralkyl; R<2> represents hydrogen or lower alkyl; R<3> represents lower alkyl, optionally substituted aryl or optionally substituted aralkyl; and R<4> and R<5> represent each independently lower alkyl, or R<4> and R<5> are combined with each other to represent, together with the carbon atom to which they are bonded, a 3- to 8-membered carbocyclic group which may have a lower alkyl branch. <CHEM>
