Chemistry of Heterocyclic Compounds p. 295 - 300 (1984)
Update date:2022-08-05
Topics:
Prostakov, N. S.
Gaivoronskaya, L. A.
Zakharov, V. F.
Kuznetsov, V. V.
Das, S. K.
Aliev, A. E.
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.
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