Spread of functions meromorphic in the disc

Translated form Teoriya Funktsii, Funktsional'nyi Analiz i Ikh Prilozheniya, No. 55, pp. 104–113, 1991.     

Stereochemistry of the quaternization of 2- and 4-epimeric trans-1-alkyl-2-methyl-4-ethynyldecahydro-4-quinolols with alkyl halides

The quaternization of trans-1-alkyl-2-methyl-4-ethynyldecahydro-4-quinolols containing an equatorial 2-CH₃ group by means of methyl iodide proceeds with predominant axial incorporation of the methyl group, whereas quaternization of the corresponding trans-1,2-dimethyl-4-ethynyldecahydro-4-quinolols by means of ethyl and n-propyl iodide takes place with predominant equatorial incorporation of the alkyl group; the ratios of the stereoisomers in the products of forward and reverse quaternization are approximately identical. Methylation of amino alcohols with an axial 2-CH₃ group also leads to the predominant formation of epimers of the quaternary salts with an axial methyl group attached to the nitrogen atom, whereas the reverse quaternization of these amino alcohols proceeds nonstereoselectively to give an approximately equimolar mixture of the epimers of the quaternary salts.anslated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 793–795, June, 1977.     

Acetals of lactams and acid amides

The reaction of dimethylformamide diethylacetal with -cyano--dimethylaminoacrylamide proceeds at the NH₂ amide group to give the corresponding acylformamidine, from which 3-cyano-4-dimethylamino-2-pyridone was obtained by thermal cyclization. Pyrrolo-, pyrido-, and azepino-[3,2-c]pyridine derivatives were similarly synthesized from 1-methyl-2-(2-cyano-2-carbamido)-methylenepyrrolidine and the homologous six- and seven-membered enaminoamides.See [1] for communication XVII.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1509–1512, November, 1976.