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Rearrangement of Spiroacetals of the 1,6-Dioxaspiro[4.5]decan-10-yl Methanesulfonate Type. Synthesis of cis -Fused 1,6-Dioxadecalins.

✍ Scribed by Betancor, Carmen; Dorta, Rosa L.; Freire, Raimundo; Prangé, Thierry; Suárez, Ernesto


Book ID
127072005
Publisher
American Chemical Society
Year
2004
Tongue
English
Weight
40 KB
Volume
69
Category
Article
ISSN
0022-3263

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Spiroketal equilibration: Interconversio
✍ Jae Uk Jeong; P.L. Fuchs 📂 Article 📅 1994 🏛 Elsevier Science 🌐 French ⚖ 279 KB

Acid-catalyzed equilibration of spiroketals 5SHp6 and 55Haj3 involves a two stage process whereby the 1,6-dioxaspiro]4.4]nonanes can be equilibrated under mild conditions to a pair of 1,6\_dioxaspiro[45]decanes with preservation of the adjacent C-20 methyl stereocenter. Under more forcing conditions