Transesterification of Various Methyl Esters Under Mild Conditions Catalyzed by Tetranuclear Zinc Cluster

Takanori Iwasaki, Yusuke Maegawa, Yukiko Hayashi, Takashi Ohshima* and Kazushi Mashima*

*Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan, Email: ohshimachem.es.osaka-u.ac.jp, mashimachem.es.osaka-u.ac.jp

T. Iwasaki, Y. Maegawa, Y. Hayashi, T. Ohshima, K. Mashima, J. Org. Chem., 2008, 73, 5147-5150.

DOI: 10.1021/jo800625v

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Abstract

A catalytic transesterification is promoted by a tetranuclear zinc cluster. The mild reaction conditions enabled the reactions of various functionalized substrates to proceed in very good yield. A large-scale reaction under solvent-free conditions offers high environmental and economical advantages.

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A Simple, General, and Highly Chemoselective Acetylation of Alcohols Using Ethyl Acetate as the Acetyl Donor Catalyzed by a Tetranuclear Zinc Cluster

T. Iwasaki, Y. Maegawa, Y. Hayashi, T. Ohshima, K. Mashima, Synlett, 2009, 1659-1663.

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Key Words

Transesterification, Benzyl Esters

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ID: J42-Y2008-1810