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11 results on '"Ciarallo G"'

3. ChemInform Abstract: MANNICH BASES FROM METHOXYCHROMONES

Author

Ciarallo G and Romussi G

Subjects
Chemistry, General Medicine, Medicinal chemistry
Abstract

Durch Erhitzen der Chromone (I) mit Paraformaldehyd und Aminen in Ethanol und in Gegenwart katalytischer Mengen Eisessig entstehen die als Hydrochloride isolierten Mannichbasen, die z.T. in die Methoiodide umgewandelt werden.

Published
1978
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4. ChemInform Abstract: Cycloaddition of Dichloroketene to N,N-Disubstituted 3-Aminomethylene-5-hydroxy-2,2-dimethyl-7-pentyl-4-chromanone: Synthesis of 2H,5H-Pyrano[3,2-c][1]-benzopyran Derivatives

Author

Romussi G, G. Bignardi, Sergio Cafaggi, and Ciarallo G

Subjects
chemistry.chemical_compound, Chemistry, General Medicine, Medicinal chemistry, 4-chromanone, Cycloaddition, Benzopyran
Abstract

The synthesis of N,N-disubstituted 3-aminomethylene-5-hydroxy-2,2-dimethyl-7-pentyl-4-chromanones (III) and their reaction with dichloroketene are described. The resulting cycloadducts (IV) gave, by dehydrochlorination, the N,N-disubstituted 4-amino-3-chloro-10-hydroxy-5,5-dimethyl-8-pentyl-2H,5H-pyrano[3,2-c] [1]benzopyran-2-ones (V), which are structurally related to tetrahydrocannabinols. Only the compound (V a) displayed a very weak stimulant activity on the CNS.

Published
1984
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