Cyclic ketones react with PdCl2 in methanol under a CO atmosphere to give mainly diesters by a ring cleavage reaction along with some chloro-substituted monoester. 13CO labeling experiments indicate the major product is formed by a mechanism involving Pd(II)-CO2CH3 insertion across the double bond of the enol form of the ketone. Pd(II) elimination and acid-catalyzed ring cleavage form a second methyl
Dneprovskii, A. S.; Mil'tsov, S. A.; Arbuzov, P. V., Journal of Organic Chemistry USSR (English Translation), 1988, vol. 24, # 10, p. 1826 - 1835
作者:Dneprovskii, A. S.、Mil'tsov, S. A.、Arbuzov, P. V.
DOI:——
日期:——
Korhonen, Ilpo O.O.; Korvola, Jorma N. J., Acta chemica Scandinavica. Series B: Organic chemistry and biochemistry, 1981, vol. 35, # 6, p. 461 - 464
作者:Korhonen, Ilpo O.O.、Korvola, Jorma N. J.
DOI:——
日期:——
Palladium(II)-Catalyzed Oxidation of Aldehydes and Ketones. 1. Carbonylation of Ketones with Carbon Monoxide Catalyzed by Palladium(II) Chloride in Methanol
作者:Othman Hamed、Arab El-Qisairi、Patrick M. Henry
DOI:10.1021/jo005627e
日期:2001.1.1
in forming the diester product so the second ester group must arise from the original ketone group. Two mechanisms are possible for the diester reaction. One involves initial Pd(II)-CO2CH3 insertion across the double bond of the enol form of the ketone while the second involves initial addition of Pd(II)-OCH3 followed by CO insertion into the new Pd(II)-carbon bond formed. Pd(II) elimination and acid-catalyzed