Acetals of lactams and acid amides. 49. Reaction of N-methyl-2-pyrrolidone and N-methyl-2-piperidone acetals with enamino diketones

Autor:	A. K. Shanazarov, V. V. Chistyakov, Yu. N. Sheinker, N. P. Solov'eva, V. G. Granik
Rok vydání:	1987
Předmět:	chemistry.chemical_compound chemistry N-Methyl-2-pyrrolidone Hydrochloride Organic Chemistry Organic chemistry Hydrochloric acid
Zdroj:	Chemistry of Heterocyclic Compounds. 23:1178-1182
ISSN:	1573-8353 0009-3122
DOI:	10.1007/bf00479363
Popis:	It was established that acetals of lactams react with enamino diketones to give cyclic dienediamines. The dienediamines obtained in the reaction of N-methyl-2-pyrrolidone diethylacetal with 2-aminomethylenedimedone and 2-N,N-dimethyl-aminomethylenedimedone are converted to 3-(Β-methylamino)ethyl-6,6-dimethyl-5,6, 7,8-tetrahydro-5-coumarinone hydrochloride when they are heated in dilute hydrochloric acid.
Databáze:	OpenAIRE
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