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[4 + 2] Dimerization and Cycloaddition Reactions of α,β-Unsaturated Selenoaldehydes and Selenoketones

✍ Scribed by Li, Guang Ming; Niu, Shuqiang; Segi, Masahito; Zingaro, Ralph A.; Yamamoto, Hiroaki; Watanabe, Kentaro; Nakajima, Tadashi; Hall, Michael B.


Book ID
125980719
Publisher
American Chemical Society
Year
1999
Tongue
English
Weight
302 KB
Volume
64
Category
Article
ISSN
0022-3263

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α,β-Unsaturated selenoaldehydes and sele
✍ Guang Ming Li; Masahito Segi; Tadashi Nakajima 📂 Article 📅 1992 🏛 Elsevier Science 🌐 French ⚖ 272 KB

a&lJnsaturated selenoaldehy&s and selenokewnes, generated in situ by selenation of the corresponding carbonyl compounds with bis(dimethylaluminttm ) selenide, underwent regioselective self-condensation to yield cyclic oYselenide derivadves. On the other hand, in the presence of a trapping agent, the