SYNTHESIS AND FORMYLATION OF SUBSTITUTED 2-SPIROPYRIMIDIN-4-ONES AND RELATED COMPOUNDS
DOI:
https://doi.org/10.1007/364Keywords:
cyclohexanone-2-carboxamide, hydroacridine derivatives, rearrangement, Vilsmeier-Haack reagentAbstract
Treatment of cyclohexanone-2-carboxamide with cyclic ketones provides oxazine derivatives while refluxing in toluene with ammonium acetate and cyclic ketones yields substituted 2-spiropyrimidin-4-ones. Depending on the ratio of reactants, the oxazines and substituted 2-spiropyrimidin-4-ones under Vilsmeier-Haack conditions undergo formylation or an electrophilic rearrangement.
Authors: V. I. Markov, O. K. Farat, S. A. Varenichenko, E. V. Velikaya, R. I. Zubatyuk, and O. V. Shishkin.
English Translation in Chemistry of Heterocyclic Compounds, 2013, 49 (8), pp 1158-1165