Silver complexing agents

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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C07D28500, C07D29102

Patent

active

043116388

ABSTRACT:
There are described photographic products, processes and compositions wherein cyclic crown ether ligands are utilized as silver halide solvents. Also disclosed are novel cyclic crown ether ligands.

REFERENCES:
patent: 3062646 (1962-11-01), Dann et al.
patent: 3930867 (1976-01-01), Bigelow
patent: 4017314 (1977-04-01), Blake
Tetrahedron Letters, Pelissard and Louis, vol. 45, pp. 4589-4592 (1972).
Inorganic Nuclear Chemistry Letters, Louis et al., vol. 13, pp. 31-35 (1977).

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