Control of self-aldol condensation by pressure manipulation under compressed CO2

Keitaro Matsui; Hajime Kawanami; Yutaka Ikushima; Hiromichi Hayashi

doi:10.1039/B307647B

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Control of self-aldol condensation by pressure manipulation under compressed CO₂†

Keitaro Matsui,^a Hajime Kawanami,*^ab Yutaka Ikushima^ab and Hiromichi Hayashi^a

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* Corresponding authors

^a Supercritical Fluid Research Center, National Institute of Advanced Industrial Science and Technology, 4-2-1 Nigatake, Miyagino-ku, Miyagi 983-8551, Japan
E-mail: h-kawanami@aist.go.jp
Fax: +81-22-237-5215
Tel: +81-22-237-5211

^b CREST, Japan Science and Technology Corporation (JST), Honcho, Kawaguchi 332-0012, Japan

Abstract

Under supercritical CO₂ conditions, simple adjustment of the pressure was found to successfully control the ratio of aldol to enal product in the self-aldol condensation of aldehyde, in which the enal product was obtained in a maximum selectivity of 94% at the critical pressure of 12MPa, whereas 85% selectivity to the aldol product was achieved at the subcritical region.

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Supplementary files

Aldol reactions of aldehyde 1b in the presence of MgO catalyst PDF (11K)

Article information

DOI: https://doi.org/10.1039/B307647B
Article type: Communication
Submitted: 04 Jul 2003
Accepted: 12 Aug 2003
First published: 22 Aug 2003

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Chem. Commun., 2003, 2502-2503

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Control of self-aldol condensation by pressure manipulation under compressed CO₂

K. Matsui, H. Kawanami, Y. Ikushima and H. Hayashi, Chem. Commun., 2003, 2502 DOI: 10.1039/B307647B

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