METHOD OF SYNTHESIS OF PROPENOIC ACID DERIVATIVES AND THEIR STEREOISOMERS Russian patent published in 1995 - IPC

FIELD: organic chemistry. SUBSTANCE: products: derivatives of propenoic acid of the formula (Z-X; A)--C₆H₃-K-C₆H₃-C(COOCH₃)CHOCH₃ where K - oxygen or sulfur; A - hydrogen, halogen, C₁-C₄-alkyl, C₁-C₄-alkoxy, hydroxy, phenoxy or C₁-C₄-alkylcarbonyl. Reagent 1: compound of the formula: (Z-X; A)--C₆H₃-K-C₆H₃-C(COOCH₃)=CH-OR₃ where R₃ - metal atom. Reagent 2: compound of the formula CH₃L where L - splitting off group. Synthesized compounds are used in agriculture. EFFECT: improved method of synthesis. 7 tbl