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The diastereoselective epoxidation of olefins in supercritical carbon dioxide

✍ Scribed by Geoffrey R Haas; Joseph W Kolis

Publisher: Elsevier Science
Year: 1998
Tongue: French
Weight: 207 KB
Volume: 39
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(98)01212-x

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✦ Synopsis

Allylic alcohols are epoxidized with tea-butyl hydroperoxide in the presence ofa vanadyl salen oxo-transfer catalyst in supercritical CO~ The metal catalyst was prepared in a simple two step, Schiffbase reaction to form the salen ligand, followed by complexation to the vanadyl group. The epoxidation reactions are clean and give both high yields and good diastereoselectivity.

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