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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|
|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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