Synthesis and alkylation of 1-substituted 3-thioxo-2,3,5,6,7,8-hexahydroisoquinoline-4-carbonitriles
摘要:
The condensation of cyclohexylidene(cyano)thioacetamides with aldehydes or of 2-acyl-1-(morpholin-4-yl)cycloalkenes with dithiomalonamide gave 1-alkyl(aryl)-3-thioxo-2,3,5,6,7,8-hexahydroisoquinoline-4-carbonitriles. Reactions of the latter with various alkylating agents selectively produced the corresponding isoquinolin-3-yl sulfides or products of their subsequent Thorpe cyclization, thieno[2,3-c]isoquinolines.
Enamine, XVI. Über die Struktur der acetylierten Cyclohexanon-enamine
作者:Günter Opitz、Ernst Tempel
DOI:10.1002/jlac.19666990108
日期:1966.12.22
Carbonamid (3a) mit anomalen spektralen Eigenschaften, beim 1-Piperidino- (1b) und 1-Morpholino-cyclohexen-(1) (1c) unter Umklappen der CC-Doppelbindung zum 6-Acetyl-Derivat (4b, c). Daneben entstehen durch Diacetylierung dieEnamine 5 des 2-Acetyl-cyclohexanon-exo-enolacetats. Die Konstitutionsermittlung basiert auf IR-, UV-, NMR-Spektren sowie Cycloadditionen an Keten und an in situ erzeugtes Sulfen.
Jacquier,R.; Maury,G., Bulletin de la Societe Chimique de France, 1967, p. 306 - 315
作者:Jacquier,R.、Maury,G.
DOI:——
日期:——
On the regioselectivity of the reaction of cyanothioacetamide with 2-acetylcyclo-hexanone, 2-acetylcyclopentanone, and 2-acetyl-1-(morpholin-4-yl)-1-cycloalkenes
作者:V. V. Dotsenko、S. G. Krivokolysko、V. V. Polovinko、V. P. Litvinov
DOI:10.1007/s10593-012-0991-5
日期:2012.5
It has been established that the interaction of cyanothioacetamide with 2-acetylcyclohexanone, 2-acetylcyclopentanone, or their enamines (2-acetyl-1-(morpholin-4-yl)-1-cycloalkenes) contrary to the literature data have a non-regiospecific character and leads to the formation of mixtures of 3-cyano-4-methyl-5,6-tri(tetra)methylenepyridine-2(1 H)-thiones and 3-cyano-6-methyl-4,5-tri(tetra)methylene-pyridine-2(1 H)-thiones with a predominance of the latter.