| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5282787 | Tetrahedron Letters | 2006 | 5 Pages |
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.
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Authors
Paulo J.S. Gomes, Cláudio M. Nunes, Alberto A.C.C. Pais, Teresa M.V.D. Pinho e Melo, Luis G. Arnaut,