6,6-Heptamethylenetetrahydropyran-2,4-dione in the Synthesis of Benzo[f]pyrano[3,4-b]quinolines and Pyrano[4,3-b][4,7]phenanthrolines
作者:N. G. Kozlov、F. S. Pashkovskii、K. N. Gusak、E. V. Koroleva、A. B. Tereshko、I. P. Lokot’
DOI:10.1023/b:rujo.0000036079.00169.3b
日期:2004.4
Three-component condensation of 6,6-heptamethylenetetrahydropyran-2,4-dione with 2-aminonaphthalene or 6-aminoquinoline and aromatic aldehydes in an aliphatic alcohol afforded 12-aryl-9,9-heptamethylene-8,9,10,12-tetrahydro-7H-benzo[f]pyrano[3,4-b]quinolin- 11-ones and 12-aryl-9,9-heptamethylene-8,9,10,12-tetrahydro-7H-pyrano[4,3-b][4,7]phenanthrolin-11-ones, new N,O-heterocycles which include aza- or diazaphenanthrene system fused to a-pyrone ring and aromatic and spiro substituents.