Nitrones and Oxaziridines. XXIV. Preparation and Reactions of 3-Bromo-2-cyano-1-pyrroline 1-Oxides: Formation of 2-Cyano-3-oxo-1-pyrroline 1-Oxides and 5-Cyano-2H-pyrrole 1-Oxides
- 1 January 1979
- journal article
- research article
- Published by CSIRO Publishing in Australian Journal of Chemistry
- Vol. 32 (8) , 1785-1794
- https://doi.org/10.1071/ch9791785
Abstract
2-Cyano-1-pyrroline 1-oxides (1) have been brominated using N-bromosuccinimide and the resulting 3-bromo-2-cyano-1-pyrroline I-oxides (2) have been further transformed into (i) 2-cyano-1-pyrrolin- 3-yl nitrate 1-oxides (3) by treatment with silver nitrate, (ii) 2-cyano-3-hydroxy-1-pyrroline 1-oxides (4) by treatment with sodium bicarbonate, and (iii) 5-cyano-2H-pyrrole 1-oxides (8) by treatment with either pyridine N-oxide or triethylamine. The 2-cyano-3-oxo-1-pyrroline 1-oxides (5) were prepared by reaction of the nitrate esters (3) with triethylamine.Keywords
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