发明授权
US5324843A Process for making 3,4,5,6-tetrahydrophthalimide derivatives
失效
制备3,4,5,6-四氢邻苯二甲酰亚胺衍生物的方法
- 专利标题: Process for making 3,4,5,6-tetrahydrophthalimide derivatives
- 专利标题(中): 制备3,4,5,6-四氢邻苯二甲酰亚胺衍生物的方法
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申请号: US39497申请日: 1993-04-29
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公开(公告)号: US5324843A公开(公告)日: 1994-06-28
- 发明人: Lothar Rueb , Karl Eicken , Bernd Schaefer , Gernot Reissenweber , Peter Schaefer
- 申请人: Lothar Rueb , Karl Eicken , Bernd Schaefer , Gernot Reissenweber , Peter Schaefer
- 申请人地址: DEX Ludwigshafen
- 专利权人: BASF Aktiengesellschaft
- 当前专利权人: BASF Aktiengesellschaft
- 当前专利权人地址: DEX Ludwigshafen
- 优先权: DEX4037840 19901128
- 主分类号: C07C205/56
- IPC分类号: C07C205/56 ; C07C229/40 ; C07D209/48
摘要:
3-(3,4,5,6-tetrahydrophthalimido)cinnamic esters I ##STR1## (R.sup.1 =H, halogen; R.sup.2, R.sup.3 =halogen; R.sup.4 =C-organic radical, R.sup.5 =H, CH.sub.3) are prepared by reducing 3-nitrocinnamic esters II ##STR2## with hydrogen in the presence of a catalyst and condensing the resulting 3-aminocinnamic esters III ##STR3## with a 3,4,5,6-tetrahydrophthalic anhydride IV ##STR4## and are valuable active ingredients in crop protection.
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