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Title: 1,3-Dipolar cycloaddition of azomethine ylides generated from aziridines in supercritical carbon dioxide
Authors: Gomes, Paulo J. S.
Nunes, Cláudio M.
Pais, Alberto A. C. C.
Melo, Teresa M. V. D. Pinho e
Arnaut, Luis G.
Keywords: Supercritical carbon dioxide
1,3-Dipolar cycloaddition
Azomethine ylides
Issue Date: 2006
Citation: Tetrahedron Letters. 47:31 (2006) 5475-5479
Abstract: The 1,3-dipolar cycloaddition of azomethine ylides with DMAD in supercritical carbon dioxide is reported. The photolysis reaction conditions were optimized with a suitable adjustment of pressure, temperature, irradiation time and co-solvent concentration leading to a more efficient reaction than in neat acetonitrile. Similar results were observed using thermal reaction conditions. Supercritical carbon dioxide with a minute co-solvent addition is shown to be a very efficient medium for promoting this type of cycloadditions.
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais

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