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
1-naphthylamine (3) underwent nitrogen-containingheterocyclic 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
A Concise Synthesis of Fluorine-Containing Benzo[h]quinolines and Benzo[h]quinolones by Selective Pyridine and Pyridinone Rings Formation Reactions of N-Propargyl-2,4-bis(trifluoroacetyl)-1-naphthylamine with Various Active Methylene Compounds
hthylamine (3) underwent nitrogen-containingheterocyclic ring-formation reactions with a variety of active methylene compounds in the presence of sodium alkoxides. This annulation reactions with dialkyl malonates were highly 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)