| 摘要 |
// T 322 FF PREPARATION OF CONJUGATED DIENES A process for the preparation of a compound of general formula (I) in which R1 represents a hydrogen atom or a methyl group, one of R2 and R3 represents a hydrogen atom and the other of R2 and R3 is the same as R1, which comprises reacting a compound of general formula R1-CH=C=CH2 (II) with a salt of formic acid in the presence of a catalyst system comprising a palladium salt and a phosphorus compound of general formula P(OX)n(X)3-n (III) in which n is 0,1,2 or 3 and each X independently represents an alkyl, alkenyl, aryl, aralkyl, alkaryl or cycloalkyl group, and recovering the desired compound of formula (I). PS11010
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