Synthesis of a 3H-pyrido[1,2-b]pyridazin-3-one from pyridine N-imide and methylphenylcyclopropenone
- 1 January 1976
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 8,p. 275a
- https://doi.org/10.1039/c3976000275a
Abstract
Pyridine N-imide (1a) reacts with methylphenylcyclopropenone (2) in methanol to give a β-aminoester (3) and the first reported 3H-pyrido[1,2-b]pyridazin-3-one (4); reaction in dichloromethane permitted isolation of the intermediate (5a).Keywords
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