Trapping of Triplet 1,4-Biradicals with Hydrogen Selenide in the Intramolecular Photochemical Cycloaddition Reaction of 3-(4'-Pentenyl)cycloalk-2-enones: Verification of the Rule of Five
โ Scribed by Maradyn, David J.; Weedon, Alan C.
- Book ID
- 121848433
- Publisher
- American Chemical Society
- Year
- 1995
- Tongue
- English
- Weight
- 236 KB
- Volume
- 117
- Category
- Article
- ISSN
- 0002-7863
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๐ SIMILAR VOLUMES
Ultra-violet light irradiation of N-benzoylmdole, 1, m the presence of mono-substituted alkenes results in the formation of cyclobutane adducts of potential synthetic utility.2$3 The reaction is regioselectrve but not stereoselecttve, so that stereoisomers of adduct 3 are formed while 2 is either no
Complete trapping of 1.4~diradical intermediates, formed in the intramolecular [2+2] photocycloaddition of 13. provide direct evidence for the exclusive formation of the first bond at the C(8) of the cyclic enone. This result is found in full agreement with the previously studied compounds 1. Copyr