Ms. Shvartsberg et al., ACETYLENIC-COMPOUNDS AS KEY INTERMEDIATES IN HETEROCYCLIC SYNTHESIS -A ROUTE TO FUNCTIONALIZED NAPHTHO[2,3-H]QUINOLINE-7,12-DIONES, Mendeleev communications, (3), 1997, pp. 98-99
Addition of primary and secondary amines to ethyl (1-amino-9, 10-anthr
aquinon-2-yl)propiolate and cyclization of the resulting adducts to 2-
substituted 4-dialkyl(or alkyl)aminonaphtho[2,3-h]quinoline-7,12-dione
s and 4-dialkyl(or alkyl)amino-1,2-dihydronaphtho[2,3-h]quinoline 2,7,
12-triones are reported.