Azobenzene Derivatives Carrying a Nitroxide Radical

Azobenzene Derivatives Carrying a Nitroxide Radical

Several trans-azobenzene derivatives carrying a nitroxide (aminoxyl) radical (2a, 6a − 12a) were prepared, and their photoisomerization reactions to the corresponding cis-isomers were investigated. Although no fruitful results could be obtained for the photoisomerizations of the derivatives with par...

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Veröffentlicht in:Journal of organic chemistry 2007-03, Vol.72 (6), p.2021-2029
Hauptverfasser: Nakatsuji, Shin'ichi, Fujino, Masahiro, Hasegawa, Satoko, Akutsu, Hiroki, Yamada, Jun-ichi, Gurman, Vladimir S
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container_end_page 2029
container_issue 6
container_start_page 2021
container_title Journal of organic chemistry
container_volume 72
creator Nakatsuji, Shin'ichi
Fujino, Masahiro
Hasegawa, Satoko
Akutsu, Hiroki
Yamada, Jun-ichi
Gurman, Vladimir S
description Several trans-azobenzene derivatives carrying a nitroxide (aminoxyl) radical (2a, 6a − 12a) were prepared, and their photoisomerization reactions to the corresponding cis-isomers were investigated. Although no fruitful results could be obtained for the photoisomerizations of the derivatives with para-subsituents (9a − 12a), the unsubstututed derivatives at the para-position (2a, 6a, 7a, 8a) were found to show photoisomerizations by irradiation to give the corresponding cis-isomers (2b, 6b, 7b, 8b), being isolated as relatively stable solid materials, and the change of the intermolecular magnetic interactions was apparently observed by the structural change for each photochromic couple.
doi_str_mv 10.1021/jo062266f
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title Azobenzene Derivatives Carrying a Nitroxide Radical
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