Triazinyl-fluorans as colorless precursors in carbonless...

Details Triazinyl-fluorans as colorless precursors in carbonless... Triazinyl-fluorans as colorless precursors in carbonless...

C - Chemistry, Metallurgy

07

D

260/249.1

C07D 493/10 (2006.01) B41M 5/145 (2006.01) C09B 11/24 (2006.01) C09B 62/002 (2006.01)

Patent

CA 1068697

ABSTRACT OF THE DISCLOSURE Fluorans useful as color precursors, particularly in the art of carbonless duplicating, and preparations thereof, said fluolans normally colorless and represented by the structural Formula I Image wherein R represents non-tertiary alkyl of one to four carbon atoms; R1 and R2 represent hydrogen or non-tertiary alkyl of one to four carbon atoms; R3 and R4 represent chlorine, or one of the groups -NR5-(lower-alkylene)-N(R6)(R7) or -NR5- (lower alkylene-?(R8)(R9)(R10) An?, in which R5, R6 and R7 repre- sent hydrogen or non-tertiary alkyl of one to four carbon atoms; R8 and R9 represent non-tertiary alkyl of one to four carbon atoms; R10 represent non-tertiary alkyl of one to four carbon atoms; benzyl or benzyl substituted in the benzene ring by one or two of halo or non-tertiary alkyl of one to three carbon atoms; and An represents an anion.

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