由于农药耐药性的不断演变,发现具有新作用模式的新农药非常重要。在这项研究中,设计并合成了一系列含有 5-(三氟甲基)-1,2,4-恶二唑部分的新型嘧啶-4-胺衍生物。它们的结构经1 H NMR、13 C NMR 和 HRMS证实。生物测定表明,化合物29对合成具有优异的杀虫活性粘虫,蚜虫medicagini,和朱砂叶螨和杀真菌活性抗霜霉病。在这些嘧啶-4-胺类化合物中,5-氯-N-(2-fluoro-4-(5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl)benzyl)-6-(1-fluoroethyl)pyrimidin-4-amine ( U7 ) and 5-bromo- N -(2-fluoro-4-(5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl)benzyl)-6-(1-fluoroethyl)pyrimidin-4-amine(
6-(1-fluoroalkyl)-4-pyrimidones and processes for producing the same
申请人:Ube Industries, Ltd.
公开号:US06340757B1
公开(公告)日:2002-01-22
The present invention is to provide a novel 6-(1-fluoroalkyl)-4-pyrimidone represented by the following formula (1):
wherein R1 represents an alkyl group; R2 represents a hydrogen atom or an alkyl group; and R3 represents a hydrogen atom, an alkyl group or a chlorine atom, which is important for a synthetic intermediate for aminopyrimidine derivatives which are useful as acaricides, fungicides or nematocides, and processes for producing the same.
6-(ALPHA-FLUOROALKYL)-4-PYRIMIDONES AND PROCESS FOR PRODUCING THE SAME
申请人:UBE INDUSTRIES LIMITED
公开号:EP1065202A1
公开(公告)日:2001-01-03
The present invention is to provide a novel 6-(α-fluoroalkyl)-4-pyrimidone represented by the following formula (1):
wherein R1 represents an alkyl group; R2 represents a hydrogen atom or an alkyl group; and R3 represents a hydrogen atom, an alkyl group or a chlorine atom,
which is important for a synthetic intermediate for amino-pyrimidine derivatives which are useful as acaricides, fungicides or nematocides,
and processes for producing the same.
4-FLUORO-3-OXOCARBOXYLIC ESTERS AND PROCESS FOR PRODUCING THE SAME
申请人:UBE INDUSTRIES LIMITED
公开号:EP1038861A1
公开(公告)日:2000-09-27
The present invention is to provide 4-fluoro-3-oxocarboxylates represented by the following formula (1):
wherein R1 represents an alkyl group or an aryl group;
R2 and R3 each represent a hydrogen atom or an alkyl group;
and R4 represents an alkyl group, and a process for preparing a 4-fluoro-3-oxocarboxylate represented by the above formula (1), which comprises allowing a 2-fluorocarboxylate represented by the following formula (2):
wherein R1 and R2 have the same meanings as defined above;
and R5 represents an alkyl group,
to react with a carboxylate represented by the following formula (3):
wherein R3 and R4 have the same meanings as defined above, in the presence of a base.