Method of synthesizing 1,4-dihydro-benzo[c]-1,5-naphthyridin-2(3

Details Method of synthesizing 1,4-dihydro-benzo[c]-1,5-naphthyridin-2(3 Method of synthesizing 1,4-dihydro-benzo[c]-1,5-naphthyridin-2(3

1986-11-04

1988-05-03

Daus, Donald G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544361, 546 94, C07D47106

Patent

active

047421711

ABSTRACT:
There is described a method of synthesizing 1,4-dihydro-benzo[c]-1,5-naphthyridin-2(3H)-ones having the formula ##STR1## where X is hydrogen, halogen, loweralkyl, loweralkoxy, trifluoromethyl or hydroxy, which method consists essentially of the aromatization and rearrangement of 1,10a-dihydropyrrolo[1,2-b]isoquinoline-3,10(2H,5H)-dione oximes of the formula below: ##STR2##

REFERENCES:
March, Advanced Organic Chemistry, 2nd Edition, pp. 825-826 and 995-996.
Martin et al, J. Org. Chem. 1986, 51, pp. 3697-3700.
Thyagarajan, Mechanisms of Molecular Migrations, vol. 4, (1971), pp. 250-289.
Kolocouris, J. Het. Chem. 20, 893 (1983).
P. de. March et al, J. Het. Chem. 21, 85 (1984).
Campaigne et al, J. Het Chem., vol. 12, p. 391 (1975).
Noller, Chemistry of Organic Compounds, pp. 289-290.

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