Naphthalenelactamimide fluorescence dyes

Details Naphthalenelactamimide fluorescence dyes Naphthalenelactamimide fluorescence dyes

C - Chemistry, Metallurgy

09

B

C09B 57/00 (2006.01) C07D 221/14 (2006.01) C07D 401/00 (2006.01) C07D 405/00 (2006.01) C07D 409/00 (2006.01) C07D 413/00 (2006.01) C07D 417/00 (2006.01) C07D 471/06 (2006.01) C08K 5/3417 (2006.01) C08K 5/3437 (2006.01) C09B 57/08 (2006.01) C09K 11/06 (2006.01)

Patent

CA 2187593

Naphthalenelactamimides of the formula I Image (I), in which, for example, R1 and R2 are 2,5-di-tert-butylphenyl and m and n are 0, are novel dyes which have the distinctive features of pronounced fluorescence as a solid and in solvents and a good light-fastness. They are therefore suitable, for example, for mass dyeing of high molecular weight organic material, as laser dyes and for the preparation of printing toners, colour filters, organic photoreceptors, electroluminescent and photoluminescent elements, optical information storage media or solar collectors. The compounds of the the formula I can be prepared by reaction of the corresponding naphthalenetetracarboxylic acid bisimides with a base.

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