CONVENIENT SYNTHESIS OF ALLENYL ESTERS AND AMIDES BY PALLADIUM CATALYZED ALKOXY- AND AMIDO-CARBONYLATION OF ALLENYL AND PROPYNYL HALIDES

Article abstract of DOI:10.1016/0022-328X(87)80416-3

Allenyl esters R1R2C=C=C(H)C(O)R (R=OMe) or amides (R=NEt2) are formed with excellent selectivities and in good yields by carbonylation of propynyl and allenyl halides at 1-20 bar CO pressure in benzene, in the presence of MeOH or HNEt2 and 1percent of Pd