Pyrazoloxanthene compounds and method for producing same

Details Pyrazoloxanthene compounds and method for producing same Pyrazoloxanthene compounds and method for producing same

C - Chemistry, Metallurgy

07

D

42/13, 260/298.3

C07D 231/56 (2006.01) B41M 5/145 (2006.01) B41M 5/30 (2006.01) B41M 5/327 (2006.01) C07D 231/54 (2006.01)

Patent

CA 1039286

ABSTRACT OF THE DISCLOSURE This invention discloses novel pyrazoloxanthene compounds, useful as the color formers or imaging sources in pressure-sensitive copy papers and in thermally-sensitive imaging papers, and a process for preparing these compounds. These pyrazoloxanthene compounds have the formula Image and Image wherein R1 and R2 may be the same or different and represent hydrogen or lower alkyl groups having from 1 to 4 carbon atoms, R3 is hydrogen or methyl, X and Y are hydrogen, chlorine, bromine or lower alkyl having from 1 to 3 carbon atoms, n and M are integers whose sum if 4 and A and B represent hydrogen, halogen or methyl.

222845

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