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Multicatalytic Processes Using Diverse Transition Metals for the Synthesis of Alkenes

Hélène Lebel* and Valérie Paquet

*Département de chimie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec, Canada, H3C 3J7, Email:

H. Lebel, V. Paquet, J. Am. Chem. Soc., 2004, 126, 11152-11153.

DOI: 10.1021/ja0472681


An oxidation-methylenation one-pot procedure in the presence of different catalysts produced terminal alkenes in high yields. A methylenation-ring-closing process for the synthesis of cyclic alkenes from carbonyl derivatives was even expanded with an initial oxidation to allow the use of alcohols as substrates.

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Rhodium-Catalyzed Methylenation of Aldehydes

H. Lebel, V. Paquet, J. Am. Chem. Soc., 2004, 126, 320-328.

Key Words

Methylenation, Cycloalkenes, Wacker-Tsuji Oxidation, Ring Closing Metathesis

ID: J48-Y2004-1700