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Synthesis 2004(14): 2263-2265
DOI: 10.1055/s-2004-831186
DOI: 10.1055/s-2004-831186
SHORTPAPER
© Georg Thieme Verlag Stuttgart · New York
A Novel Four-Component Reaction for the Diastereoselective Synthesis of Some New Spiro Pyrrolizidines via 1,3-Dipolar Cycloaddition of Azomethine Ylides
Further Information
Publication History
Received
7 April 2004
Publication Date:
19 August 2004 (online)


Abstract
With regard to green chemistry, atom-efficient transformations of easily available starting materials into complex organic building blocks become increasingly important. Here, a novel four-component condensation of ninhydrin, 1,2-phenylene diamine, proline and N-aryl maleimides to some new spiro pyrrolizidines via 1,3-dipolar cycloadditions of azomethine ylides, under microwave irradiation or classical conditions, is reported.
Key words
spiro pyrrolizidines - azomethine ylides - 1,3-dipolar cycloadditions