AN EFFICIENT AND SELECTIVE SYNTHETIC METHOD FOR FLUORINE-CONTAINING BENZO[h]QUINOLINES AND 1H-BENZO[h]QUINOLIN-2-ONES FROM N-PROPARGYL-2,4-BIS(TRIFLUOROACETYL)-1-NAPHTHYLAMINE

[摘要]：N-Propargyl-2,4-bis(trifluoroacetyl)-1-naphthylamine (3) underwent nitrogen-containing heterocyclic ring-formation reactions with active methylene compounds such as dialkyl malonates in the presence of sodium alkoxides. This ring closure reactions were very dependent on reaction temperature to give selectively the corresponding fluorine-containing benzo[h]quinolines (5) at high temperature and 1H-benzo[h]quinolin-2-ones (7 and 8) at low temperature.

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