发明授权
- 专利标题： Preparation of fungicidal quinazolinones and useful intermediates
- 专利标题（中）： 杀真菌喹唑啉酮和有用的中间体的制备
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申请号： US202394申请日： 1998-12-09
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公开(公告)号： US6166208A公开(公告)日： 2000-12-26
- 发明人: James Francis Bereznak , Eric Allen Marshall , Charlene Gross Sternberg , Jeffrey Arthur Sternberg , King-Mo Sun
- 申请人： James Francis Bereznak , Eric Allen Marshall , Charlene Gross Sternberg , Jeffrey Arthur Sternberg , King-Mo Sun
- 申请人地址： DE Wilmington
- 专利权人： E. I. du Pont de Nemours and Company
- 当前专利权人： E. I. du Pont de Nemours and Company
- 当前专利权人地址： DE Wilmington
- 主分类号： C07C271/68
- IPC分类号： C07C271/68 ; C07C331/28 ; C07D239/95 ; C07D239/96
摘要：
This invention provides advantageous processes for preparing quinazolinones of Formula I ##STR1## wherein: R.sup.1 is C.sub.1 -C.sub.10 alkyl; C.sub.3 -C.sub.10 alkenyl; C.sub.3 -C.sub.10 cycloalkyl; C.sub.3 -C.sub.10 halocycloalkyl; C.sub.4 -C.sub.10 cycloalkylalkyl; C.sub.4 -C.sub.10 halocycloalkylalkyl; or C.sub.3 -C.sub.10 alkynyl;R.sup.2 is C.sub.1 -C.sub.10 alkyl; C.sub.3 -C.sub.10 alkenyl; C.sub.3 -C.sub.10 cycloalkyl; C.sub.3 -C.sub.10 halocycloalkyl; C.sub.4 -C.sub.10 cycloalkylalkyl; C.sub.4 -C.sub.10 halocycloalkylalkyl; C.sub.4 -C.sub.10 cycloalkyl; C.sub.4 -C.sub.10 halocycloalkyl; or C.sub.3 -C.sub.10 alkynyl; andR.sup.3 and R.sup.4 are each independently hydrogen or halogen; from compounds containing the moiety IIg ##STR2## This invention further provides certain compounds of Formula II, IIIa, or IVa ##STR3## where R.sup.7 is C.sub.2 -C.sub.6 alkyl.
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