Competitive 2-AzaVs3-Azahexa-1,3,5-triene 6π-Electrocyclization: A Regiospecific Synthesis of 3-Arylpyridines
- 1 January 1992
- journal article
- letter
- Published by Georg Thieme Verlag KG in Synlett
- Vol. 1992 (11) , 873-874
- https://doi.org/10.1055/s-1992-21523
Abstract
Aza Wittig reaction of iminophosphoranes derived from ethyl α-azido-β-arylpropenoates with α,β-unsaturated aldehydes leads to aldimines which by heating undergo electrocyclic ring-closure through the 3-azahexa-1,3,5-triene moiety to give 3-arylpyridines in a completely regiospecific fashion.Keywords
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