Naphthoquinone methide type near-i.r. dye: the properties and structure of 4-(2′-acetylamino-4′-diethylaminophenylimino)-1,4-dihydronaphthylidene- malononitrile

Autor: Yasuko Tomotake, Shuichi Maeda, Yuji Kubo, Minoru Kuwana, Katsuhira Yoshida, Takao Matsuzaki
Rok vydání: 1989
Předmět:
Zdroj: J. Chem. Soc., Chem. Commun.. :35-37
ISSN: 0022-4936
DOI: 10.1039/c39890000035
Popis: The introduction of an acetylamino group at the 2′-position in the aniline ring of a naphthoquinone methide dye produced a red shift with a large increase in the molecular extinction coefficient in CHCI3 solution, and an intramolecular ring-closure reaction of the compound under alkaline conditions gave a new blue dye; the stereochemistry of this chromophoric system was determined by X-ray analysis.
Databáze: OpenAIRE
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