Regiospecific separate syntheses of the new 1H,5H- and 3H,5H-benzo[ij]quinolizin-5-one derivatives exploiting 2-bromo-10-hydroxy-7-methyl-1H,2H,3H,5H-benzo[ij]quinolizin-5-one as common key intermediate are described. The structure or 2-bromo-10-hydroxy-7-methyl-1H,2H,3H,5H-benzo[ij]quinolizin-5-one (*) has been determined by X-ray analysis. Crystal data: a = 7.248(3), b = 18.40(1), c = 9.132(7) angstrom, beta = 106.08(5)-degrees; space group P2(1)/c; Z = 4.
REGIOSPECIFIC SYNTHESIS OF 1H,5H-BENZO[IJ]QUINOLIZIN-5-ONE AND 3H,5H-BENZO[IJ]QUINOLIZIN-5-ONE DERIVATIVES
CHILIN, ADRIANA;BANDOLI, GIULIANO;MANZINI, PAOLO;GUIOTTO, ADRIANO
1994
Abstract
Regiospecific separate syntheses of the new 1H,5H- and 3H,5H-benzo[ij]quinolizin-5-one derivatives exploiting 2-bromo-10-hydroxy-7-methyl-1H,2H,3H,5H-benzo[ij]quinolizin-5-one as common key intermediate are described. The structure or 2-bromo-10-hydroxy-7-methyl-1H,2H,3H,5H-benzo[ij]quinolizin-5-one (*) has been determined by X-ray analysis. Crystal data: a = 7.248(3), b = 18.40(1), c = 9.132(7) angstrom, beta = 106.08(5)-degrees; space group P2(1)/c; Z = 4.
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