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Synthesis of 1-(3-methylpyrazolyl-1)anthraquinone

โœ Scribed by V. P. Perevalov; L. I. Baryshnenkova; K. S. Tsoi

Book ID
104781704
Publisher
Springer US
Year
1990
Tongue
English
Weight
60 KB
Volume
26
Category
Article
ISSN
0009-3122

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๐Ÿ“œ SIMILAR VOLUMES

Synthesis of 4-(3-methylpyrazolyl-1)naph
Synthesis of 4-(3-methylpyrazolyl-1)naphthalic anhydride
โœ V. P. Perevalov; L. I. Baryshnenkova; K. S. Tsoi; A. K. Kh. Karim ๐Ÿ“‚ Article ๐Ÿ“… 1992 ๐Ÿ› Springer US ๐ŸŒ English โš– 70 KB

Heating 4-nitronaphthalic anhydride in an excess of 3(5)-methylpyrazole gives only 4-(3-methyO~yrazolyl-1)naphthalic anhydride, which is converted by butylamine into the known N-butylimide of 4-(3-methylpyrazolyl-1)naphthalic acid.

1,2-BENZ-3,4-ANTHRAQUINONE
1,2-BENZ-3,4-ANTHRAQUINONE
โœ Fieser, Louis F.; Dietz, Emma M. ๐Ÿ“‚ Article ๐Ÿ“… 1929 ๐Ÿ› American Chemical Society ๐ŸŒ English โš– 529 KB
Photochromism of 1-(1-naphthoxy)anthraqu
Photochromism of 1-(1-naphthoxy)anthraquinones
โœ Masahiro Tajima; Makoto Tokoro; Haruo Inoue ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 411 KB

The photochromic behavior of I-(1-naphthoxy)anthraquinone (1) has been newly investigated. Upon UV light irradiation, the color of a benzene solution of 1 turned from pale yellow to orange. The quantum yield of the coloration was 0.05. The excited singlet state was revealed to be responsible for th