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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

Process for making 3,4,5,6-tetrahydrophthalimide derivatives
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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