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

039988252

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 and R.sup.2 represent hydrogen or non-tertiary alkyl of one to four carbon atoms; R.sup.3 and R.sup.4 represent chlorine, or one of the groups --NR.sup.5 -(lower-alkylene)-N(R.sup.6)(R.sup.7) or --NR.sup.5 -(lower-alkylene-N.sup.+ (R.sup.8)(R.sup.9)(R.sup.10) An.sup.- , in which R.sup.5, R.sup.6 and R.sup.7 represent hydrogen or non-tertiary alkyl of one to four carbon atoms; R.sup.8 and R.sup.9 represent non-tertiary alkyl of one to four carbon atoms, R.sup.10 represents non-tertiary alkyl of one to four carbon atoms, benzyl or benzyl substituted in the benzene ring by one or two of halo or alkyl of one to three carbon atoms; and An represents an anion.

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

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