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Highly Photostable Organic Fluorescent Pigments – A Simple Synthesis of N ‐Arylpyrrolopyrrolediones (DPP)
Author(s) -
Langhals Heinz,
Grundei Thomas,
Potrawa Thomas,
Polborn Kurt
Publication year - 1996
Publication title -
liebigs annalen
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0947-3440
DOI - 10.1002/jlac.199619960506
Subject(s) - chemistry , pigment , fluorescence , orange (colour) , condensation , photochemistry , solid state , organic chemistry , meteorology , food science , physics , quantum mechanics
N ‐Arylpyrrolopyrrolediones 1b‐g are prepared by the condensation of the corresponding lactones 2 and 5 with arylamines in the presence of dicyclohexylcarbodiimide. Bright red dye pigments are obtained with an intense red to orange solid‐state fluorescence.