Triazinyl-benzofluorans

Details Triazinyl-benzofluorans Triazinyl-benzofluorans

1975-07-31

1976-12-21

Ford, John M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2602496, 2602498, 282 275, C07D25144, C07D25150, C07D25170

Patent

active

039988260

ABSTRACT:
Fluorans useful as color precursors, particularly in the art of carbonless duplicating are normally colorless and are represented by the structural formula ##STR1## wherein R represents non-tertiary alkyl of one to four carbon atoms; R.sup.1 represents hydrogen or non-tertiary alkyl of one to four carbon atoms; R.sup.2 and R.sup.3 represent chlorine or one of the groups

REFERENCES:
patent: 3183231 (1965-05-01), Buell
patent: 3867383 (1975-02-01), Winter

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