Thermally Reversible Photochromism of Pyrazole Derivatives
Yasuyo Saito
1
,
Manabu Katsurada
1
,
Itaru Okada
1
,
Yasuko T. Osano
1
,
Chizuko Sasaki
1
,
Yayoi Yokoyama
2
,
Hideyuki Tukada
3
,
MASAFUMI ADACHI
1
,
Shinichiro Nakamura
1
,
Tetsuo Murayama
1
,
Toshie Harazono
1
,
Tetsuya Kodaira
4
1
Mitsubishi chemical Corporation
Publication type: Journal Article
Publication date: 2004-03-01
scimago Q3
wos Q4
SJR: 0.374
CiteScore: 2.8
Impact factor: 1.1
ISSN: 03667022, 13480715
General Chemistry
Abstract
Ethyl 4-formyl-1,3-dimethylpyrazole-5-carboxylate showed coloration upon 366-nm light irradiation in the solid state at room temperature. The red color disappeared either by melting or dissolving into solvents. The initiation of coloration is most likely based on a photochemical intramolecular hydrogen abstraction by the formyl oxygen from the methyl group on C-3. It also exhibited coloration in 2-methyltetrahydrofuran matrix at low temperature.
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Citations from 2024:
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GOST
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YOKOYAMA Y. et al. Thermally Reversible Photochromism of Pyrazole Derivatives // Chemistry Letters. 2004. Vol. 33. No. 2. pp. 106-107.
GOST all authors (up to 50)
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Saito Y., Katsurada M., Okada I., Osano Y. T., Sasaki C., Yokoyama Y., Tukada H., ADACHI M., Nakamura S., Murayama T., Harazono T., Kodaira T. Thermally Reversible Photochromism of Pyrazole Derivatives // Chemistry Letters. 2004. Vol. 33. No. 2. pp. 106-107.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1246/cl.2004.106
UR - https://doi.org/10.1246/cl.2004.106
TI - Thermally Reversible Photochromism of Pyrazole Derivatives
T2 - Chemistry Letters
AU - Saito, Yasuyo
AU - Katsurada, Manabu
AU - Okada, Itaru
AU - Osano, Yasuko T.
AU - Sasaki, Chizuko
AU - Yokoyama, Yayoi
AU - Tukada, Hideyuki
AU - ADACHI, MASAFUMI
AU - Nakamura, Shinichiro
AU - Murayama, Tetsuo
AU - Harazono, Toshie
AU - Kodaira, Tetsuya
PY - 2004
DA - 2004/03/01
PB - Oxford University Press
SP - 106-107
IS - 2
VL - 33
SN - 0366-7022
SN - 1348-0715
ER -
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BibTex (up to 50 authors)
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@article{2004_YOKOYAMA,
author = {Yasuyo Saito and Manabu Katsurada and Itaru Okada and Yasuko T. Osano and Chizuko Sasaki and Yayoi Yokoyama and Hideyuki Tukada and MASAFUMI ADACHI and Shinichiro Nakamura and Tetsuo Murayama and Toshie Harazono and Tetsuya Kodaira},
title = {Thermally Reversible Photochromism of Pyrazole Derivatives},
journal = {Chemistry Letters},
year = {2004},
volume = {33},
publisher = {Oxford University Press},
month = {mar},
url = {https://doi.org/10.1246/cl.2004.106},
number = {2},
pages = {106--107},
doi = {10.1246/cl.2004.106}
}
Cite this
MLA
Copy
YOKOYAMA, Yasushi, et al. “Thermally Reversible Photochromism of Pyrazole Derivatives.” Chemistry Letters, vol. 33, no. 2, Mar. 2004, pp. 106-107. https://doi.org/10.1246/cl.2004.106.