Direct irradiation of 5,5-diaryl-2,5\_dihydrofurans results in a di-r-methane rearrangement to give 3-penten-l-one derivatives. Triplet sensitization leads to the formation of a 2-oxabicyclo[2.l.O]pentane which is extremely sensitive to heat and oxygen. The light-induced transformations of the five
Photochemical and chemical behaviour of 2,5-hydroperoxyhydroxy-2,5-dihydrofurans
β Scribed by M. L. Graziano; B. Carli
- Book ID
- 112126877
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1982
- Tongue
- English
- Weight
- 188 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0022-152X
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## Abstract The photochemical behaviour of the title compound **2c** was investigated in various solvents. In benzene and __t__βbutanol photodimerization affords the __cis__β__anti__β__cis HH__β and __HT__βdimers (H = head, T = tail). In acetonitrile, cyclohexane and 2βpropanol, photoreduction comp