Abstract
The crotonic condensation of 3-acetylindole, its N-methyl derivative, 3-formyl-1-methylindole, and 3-formyl-6-nitroindole with various aldehydes and methyl ketones in an alkaline medium has yielded a number of unsaturated ketones, some of which have been characterized as their 2, 4-dinitrophenylhydrazones. The reaction of some of these unsaturated ketones with phenylhydrazine has yielded derivatives of 1-phenyl-2-pyrazoline, which possess luminescent properties.
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Tsukerman, S.V., Bugai, A.I., Nikitchenko, V.M. et al. Synthesis of unsaturated ketones and derivatives of 2-pyrazoline containing an indole nucleus. Chem Heterocycl Compd 6, 370–373 (1970). https://doi.org/10.1007/BF00471244
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DOI: https://doi.org/10.1007/BF00471244