PALLADIUM-CATALYZED HYDROGENOLYSIS OF 2-ALKYNYL FORMATES AND ELIMINATION OF 2-ALKYNYL CARBONATES - 2-ALKYNYLPALLADIUM COMPLEX VS ALLENYLPALLADIUM COMPLEX AS INTERMEDIATES
T. Mandai et al., PALLADIUM-CATALYZED HYDROGENOLYSIS OF 2-ALKYNYL FORMATES AND ELIMINATION OF 2-ALKYNYL CARBONATES - 2-ALKYNYLPALLADIUM COMPLEX VS ALLENYLPALLADIUM COMPLEX AS INTERMEDIATES, Journal of organometallic chemistry, 473(1-2), 1994, pp. 343-352
Examples of palladium-catalyzed reactions of 2-alkynyl esters via the
2-alkynylpalladium intermediates are presented. The palladium-catalyze
d hydrogenolysis of 2-alkynyl formates, which have internal triple bon
ds, affords alkynes via the 2-alkynylpalladium as an intermediate. The
elimination reaction of 2-alkynyl carbonates yields conjugated enynes
via the 2-alkynylpalladium intermediates.