Reactions of pyryliums with mono- and asym-di-substituted hydrazines
- 1 January 1981
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- p. 1495-1500
- https://doi.org/10.1039/p19810001495
Abstract
Literature data on the title reactions are reviewed and further examples given particularly with dialkylhydrazines and hydrazones. Compounds derived from 2-ethoxycarbonyl-4,6-diphenylpyrylium tend to cyclise and new examples of the dihydropyrazoloquinoline (27) and oxidopyrido[1,2-b]pyridazinium [(62)–(64)] ring systems are described.Keywords
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