Reaction of arylidene-2-naphthylamines with ethyl furoylacetate

The reaction of arylidene-2-naphthylamines with ethyl furoylacetate was studied. It is shown that noncyclic amino keto esters are formed when the reaction is carried out without a catalyst and that esters of the benzof]quinoline series are formed when the reaction is carried out in the presence of a catalyst and an oxidizing agent. Esters of the benzof]quinoline series are also formed in the cyclization of the amino keto esters. The structures of the reaction products were confirmed by the results of elementary analysis and the IR, UV, NMR, and mass spectroscopic data.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 169–172, February, 1979.