107973-19-3Relevant academic research and scientific papers
CONDENSATION OF N-(PIPERIDYLIDENE-4)ARYLAMINES WITH ACETYLENEDICARBOXYLIC ESTERS
Kuznetsov, V. V.,Gaivoronskaya, L. A.,Murugova, L. A.,Prostakov, N. S.
, p. 755 - 758 (2007/10/02)
The substituted piperidines, N-(piperidin-3-en-4-yl)-N-(1,2-dimethoxycarbonyletheno)arylamine and 1-aryl-3,4,5,6-tetramethoxycarbonyl-1,2-dihydrospirocyclo, were synthesized by the condensation of acetylenedicarboxylic ester with an azomethine, obtained from a χ-piperidone.It was found that the amounts of 1:1 and 1:2 addition compounds obtained depends on the ratio of starting reagents.Compounds isomeric at the vinyl group were examined in the case of one of the 1:1 addition compounds.N-(1,2,5-trimethylpiperidin-4-yl)-N-(1,2-dimethoxycarbonyletheno)aniline was prepared by two methods.
