[CH:1]12[C:10](=O)[O:9][C:7](=O)[CH:2]1CC=C[CH2:6]2.[Pd:12]([Cl:14])[Cl:13].[C:15](#[N:17])[CH3:16]>CN(C)C=O>[Pd:12]([Cl:14])[Cl:13].[CH2:10]([O:9][CH:7]=[CH2:2])[CH:1]([CH3:6])[CH3:15].[Pd:12]([Cl:14])[Cl:13].[C:15](#[N:17])[CH3:16].[CH:7]([O:9][CH2:10][CH:1]([CH3:6])[CH3:15])=[CH2:2]4-cyclohexene-1,2-dicarboxylic acid anhydride is dissolved in three times its quantity of dimethyl formamide. Its equimolar quantity of acetonitrile palladium dichloride is added at 40° C. in the course of 2 hours. Dimethyl formamide and acetonitrile are distilled off at 45° C./25 mbar. A brownish solid with a melting point of 53°-54° C. is obtained in a 90% yield. Isobutylvinyl ether palladium dichloride is obtained in analogous manner from acetonitrile palladium dichloride and isobutyl vinyl ether, melting point 57°-60° C.
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