Bulletin of the Chemical Society of Japan p. 1748 - 1752 (1990)
Update date:2022-08-04
Topics:
Yoshida, Katsuhira
Koujiri, Tetsunao
Sakamoto, Eriko
Kubo, Yuji
The Diels-Alder reaction of 5,8-quinolinedione with p-(dimethylamino)styrenes gave new two kinds of isomeric dyes, 2-(dimethylamino)naphtho<1,2-g>quinoline-7,12-diones and 2-(dimethylamino)naphtho<2,1-g>quinoline-7,12-diones, which showed quite different metallochromic behaviors.Upon addition of metal salts, one of the two isomers showed drastic spectral changes to have an intense absorption band in near infrared region.The color-structure relations were investigated.
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(1990)
