Reaction of 5, 8-Diphenyl-5, 8-dihydroanthra [1, 9-bc:4, 10-b′c′]diquinoline or its Endoperoxide with Trifluoroacetic Acid

Daisuke Goma; Isao Nagashima; Tatsuya Tachikawa; Hidenobu Shiroishi; Masao Kaneko; Sumio Tokita

doi:10.2494/photopolymer.14.239

Reaction of 5, 8-Diphenyl-5, 8-dihydroanthra [1, 9-bc:4, 10-b′c′]diquinoline or its Endoperoxide with Trifluoroacetic Acid

Daisuke Goma, Isao Nagashima, Tatsuya Tachikawa, Hidenobu Shiroishi, Masao Kaneko, Sumio Tokita

著者情報

キーワード: Photochromism, Endoperoxide, Protic acid, Thermochromism, Indicator

ジャーナルフリー

2001 年 14 巻 2 号 p. 239-243

DOI https://doi.org/10.2494/photopolymer.14.239

詳細

抄録

5, 8-Diphenyl-5, 8-dihydroanthra[1, 9-bc:4, 10-b′c′]diquinoline (ADQ, 3) and its endoperoxide (ADQepo, 4) were photochromic compounds with high heat stability. By heating above 100°C, colorless ADQepo (4) was slowly converted to green ADQ (3) in toluene. Reaction of ADQepo with some protic acid gave ADQ (3) at room temperature. The mechanism of this reaction was proposed based on the measurement of electronic spectrum.

責任著者(Corresponding author)

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