Novel compounds, processes and marking systems

Details Novel compounds, processes and marking systems Novel compounds, processes and marking systems

1979-06-14

1981-03-24

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

546 94, 546 96, 546273, 260315, 26032635, 26032636, 26032647, 564219, 564315, C07D20910

Patent

active

042579546

ABSTRACT:
Mono and bis substituted (arylsulfonyl)alkanes useful as color formers, particularly in carbonless duplicating and thermal marking systems, are prepared by the interaction of the appropriate aldehyde or dialdehyde with the appropriate aryl or heterocyclic moiety and the appropriate phenylsulfinic acid in the presence of a catalyst.

REFERENCES:
patent: 3193404 (1965-07-01), Davis
patent: 3995088 (1976-11-01), Garner et al.
Hellman, et al., "Chemische Berichte," vol. 98, 1965, p. 638.
Treibs, et al., "Chemical Abstracts", vol. 50, 1956, col. 944i.
Licari, et al., "Amer. Chem. Soc.", vol. 76, 1954, p. 4039.
Hinsberg, "Chemische Berichte," vol. 50, 1917, pp. 468-473.

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