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Light-induced interconversion of cis and trans 2,3-dimethylspiro[cyclopropane-1,9′-flourene]

✍ Scribed by W. von E. Doering; M. Jones Jr.


Publisher
Elsevier Science
Year
1963
Tongue
French
Weight
167 KB
Volume
4
Category
Article
ISSN
0040-4039

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✦ Synopsis


LIGHT-INDUCED isomerieations include many basic types3 but no examples of the stereoisomerization of a cyclopropane derivative. 4 During 9 W. Kirmse, Angew. Chem. c, 161 (1961).


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Trans → cis photoisomerization of 1-(9-a
✍ Licheng Sun; Helmut Görner 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 412 KB

The quantum yields of fluorescence, triplet formation and trans-+cis photoisomerization (@r, 0r and @\_,) of the title compounds (H,C-and H&O-StA) were measured in several solvents at room temperature. The respective values in acetonitrile are @r=O.20 and 0.03, &LO. 18 and 0.02, @J,\_~=O. 12 and 0.2