1,3-Disulfonylcycloalkanes as silver halide solvents

Details 1,3-Disulfonylcycloalkanes as silver halide solvents 1,3-Disulfonylcycloalkanes as silver halide solvents

1974-12-23

1976-05-25

Kelley, Mary F.

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

96 61R, 96 61M, G03C 554, G03C 538

Patent

active

039589927

ABSTRACT:
1,3-disulfonylcycloalkanes substituted in the 2-position with at least one hydrogen atom are employed as silver halide complexing agents in both conventional and diffusion transfer photography. Preferred compounds are those possessing an S-containing moiety substituted in the 2-position and particularly those containing 6, 7 or 8 members in the cyclic ring and substituted in the 2-position with R.sup.2 -S-CH.sub.2).sub.m wherein R.sup.2 is a hydrocarbon radical and m is a whole number 0 to 5. The latter thioether-substituted 1,3-disulfonylcycloalkanes comprise the novel compounds of the present invention.

REFERENCES:
patent: 2767195 (1956-10-01), Brockman et al.
patent: 3769014 (1973-10-01), Stewart et al.
"Stereochemistry of .alpha.-Sulfonyl Carbaniens," Corey et al., Tetrahedron Letters, No. 12, pp. 515-520, 1962.

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