| abstract |
4-Isobutylstyrene and other olefinic compounds corresponding to the formula C (R3) (R4) = C (R2) A were prepared by reacting an organic compound having the formula AX with a substituted vinyl or vinyl compound having the C (R3) (R4) = C (R2) H in the presence of a catalyst containing (a) palladium or palladium salt and (b) a ligand corresponding to formula (I) in this formula A is aryl, substituted aryl , heteroaryl, substituted heteroaryl, benzyl, substituted benzyl, vinyl, or substituted vinyl; R2, R3 and R4 are independently selected from hydrogen, alkyl, cycloalkyl, cycloalkyl substituted alkyl, aryl, substituted aryl, alkoxy, alkylthio, heteroaryl, substituted heteroaryl, alkanyl, aroyl, substituted aroyl, heteroarylcarbonyl, substituted heteroarylcarbonyl, trifluoromethyl and halo; X is chlorine, bromine, diazonium iodine; Ar is phenyl, substituted phenyl, naphthyl, or substituted naphthyl; R 'and R' 'are independently selected from substituted hydrogen, alkyl, aryl, or aryl; and n is an integer of 3-6. The olefinic compounds by reaction could be carbonylated to the corresponding carboxylic compounds. |