METHOD OF PREPARING DIESTERS OF PHOSPHONECARBOXYLIC ACID DERIVATIVES Russian patent published in 1999 - IPC

Abstract RU 2141962 C1

FIELD: elementorganic synthesis. SUBSTANCE: title diesters having general formula I: (I) are prepared by interaction of phosphites having general formula II: (II) with ethylenically unsaturated compound X-CH=CH-Y where R1 and R2 are phenyl or C1-4-alkyl each optionally substituted by one or several chlorine or bromine atoms, X is hydrogen or methyl, Y groups COOR1, -CONH2, -CONHR1, CONR12

or -CN, in presence of basic catalyst with general formula MOR1, in which M is alkali metal and R1 unsubstituted alkyl, in particular, methyl or ethyl, and bivalent metal halide, oxide, or hydroxide. EFFECT: reduced necessity of high-basicity catalysts. 7 cl, 2 tbl, 12 ex

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RU 2 141 962 C1

Authors

Salman Dermejk

Martina Vanner

Karl-Khejnts Lemmer

Rejnkhol'D Braun

Dates

1999-11-27Published

1995-07-20Filed