91029-23-1Relevant academic research and scientific papers
CONDENSATION OF AZOMETHINES WITH DIMETHYL ACETYLENEDICARBOXYLATE
Prostakov, N. S.,Gaivoronskaya, L. A.,Zakharov, V. F.,Kuznetsov, V. V.,Das, S. K.,Aliev, A. E.
, p. 295 - 300 (2007/10/02)
The condensation of dimethyl acetylenedicarboxylate with benzylidene- and cyclohexylideneaniline, as well as with cyclohexylidene-p-toluidine and cyclohexylidene-p-anisidine, under various conditions gave 1:1, 1:2, and 1:3 adducts.The structures of the isolated substances, which are formed as a result of the addition of the ester to the azomethines with subsequent 1,5-prototropic rearrangement (arylcyclohexenylvinylamines), as well as by cycloaddition (substituted dihydropyridines and spiro-cyclohexanedihydropyridines), are discussed.
