Cyclic derivatives of 1,2,3,4 tetrahydroquinoline and indolene

Details Cyclic derivatives of 1,2,3,4 tetrahydroquinoline and indolene Cyclic derivatives of 1,2,3,4 tetrahydroquinoline and indolene

1976-09-09

1978-01-10

Coughlan, Jr., Paul M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

96 29R, 96 66HD, 96 66R, 96 76R, 96 95, 260283CN, 260287T, 548359, C07D48704, C07D47104

Patent

active

040678725

ABSTRACT:
In one embodiment, the present invention relates to novel heterocyclic compounds as represented in the following formula ##STR1## wherein R and R' each are hydrogen or alkyl, Y is .dbd.O or .dbd.NH and n is a positive integer from 1 to 7.
In another embodiment, the present invention is directed to the use of the above-denoted class of heterocyclic compounds as photographic silver halide developing agents and to photographic processes, products and compositions employing the same.

REFERENCES:
patent: 2421693 (1947-06-01), Harriman
patent: 3407206 (1968-10-01), Bousquet
patent: 3454579 (1969-07-01), Wright
patent: 3634426 (1972-01-01), Eberle
patent: 3652570 (1972-03-01), Gettos et al.
patent: 3655648 (1972-04-01), Houlihan et al.
patent: 3770447 (1973-11-01), Bore et al.
Alley et al., Chem. Abs. vol. 53:11349h, (1959).
Hunt et al., Chem. Abs. vol. 77: 101495k (1972).

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