Azines and Imines of 4- and 5-t-Bu-Pyrrole-2-aldehyde. A Useful Synthesis of the Aldehydes
- 1 May 1994
- journal article
- research article
- Published by Taylor & Francis in Synthetic Communications
- Vol. 24 (10) , 1389-1393
- https://doi.org/10.1080/00397919408011742
Abstract
The preparation of 4- and 5-t-Bu-pyrrole-2-aldehyde can be brought about in a high yield and purity using Vilsmeier-Haack type reactions as conclusions to reaction sequences involving a 1-benzenesulfonyl directing group on pyrrole (4-substitution) or the formamidinium salt of pyrrole (5-substitution). Azines/imines were prepared and characterised.Keywords
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