58232-21-6Relevant academic research and scientific papers
Thermochromic rylene dyes
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, (2008/06/13)
The invention relates to rylene dyes of the general formula (I), wherein the variables have the following meanings: R represents hydrogen; optionally substituted C1-C30alkyl-C5-C8-cycloalkyl, aryl or hetaryl; R′ represents optionally substituted C2-C30alkyl or C5-C8cycloalkyl, substituted methyl; and n is 0 or 1. The invention also relates to the preparation and use of said dyes for coloring highly molecular organic and inorganic materials and to 9-amino-perylene-3,4-dicarboxylic acid imides (Va) as their intermediate products.
