| 摘要 |
PCT No. PCT/EP91/02166 Sec. 371 Date Apr. 29, 1993 Sec. 102(e) Date Apr. 29, 1993 PCT Filed Nov. 16, 1991 PCT Pub. No. WO92/09575 PCT Pub. Date Jun. 11, 1992.3-(3,4,5,6-tetrahydrophthalimido)cinnamic esters I <IMAGE> I (R1=H, halogen; R2, R3=halogen; R4=C-organic radical, R5=H, CH3) are prepared by reducing 3-nitrocinnamic esters II <IMAGE>and condensing the resulting 3-aminocinnamic esters III <IMAGE> III with a 3,4,5,6-tetrahydrophthalic anhydride IV <IMAGE> IV and are valuable active ingredients in crop protection.
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