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Preparation and Cycloaddition Reactions of Novel Heterocyclic Mesomeric Betaines

Authors :
Stephen P. Stanforth
W. David Ollis
David O. Morgan
Source :
Tetrahedron. 56:5523-5534
Publication Year :
2000
Publisher :
Elsevier BV, 2000.

Abstract

The heterocyclic mesomeric betaines 6a–c reacted with dimethyl acetylenedicarboxylate and ethyl propiolate giving the 1,3-dipolar cycloaddition products 7a–c and 8a–c, respectively. With esters of maleic, fumaric, acrylic and methacrylic acids, mesomeric betaines 6a and 6b gave substituted tetralone derivatives.

Details

ISSN :
00404020
Volume :
56
Database :
OpenAIRE
Journal :
Tetrahedron
Accession number :
edsair.doi...........59ced168ed3862e54539c1e50a79cd6b
Full Text :
https://doi.org/10.1016/s0040-4020(00)00471-3