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 |
Externí odkaz: |
načítá se...