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Evidence for a Ring-Opening Preequilibrium in the Exchange Reactions of Diosmacyclobutanes

✍ Scribed by Bender, Bruce R.; Ramage, David L.; Norton, Jack R.; Wiser, Dawn C.; Rappé, Anthony K.

Book ID
126879510
Publisher
American Chemical Society
Year
1997
Tongue
English
Weight
583 KB
Volume
119
Category
Article
ISSN
0002-7863

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Ring opening in the reaction of diphenylcyclopropane derivatives with strong base: evidence for a proton transfer and against an electron transfer reaction. Facile disrotatory ring opening of a cyclopropyl anion at -75°C
✍ Gernot Boche; Michael Marsch 📂 Article 📅 1983 🏛 Elsevier Science 🌐 French ⚖ 238 KB

The reaction of cyclopropanes like 2,3,4-triphenyl-endo-tricyclo[3.2.1.02'0]octane (la) with base is initiated by proton and not by ele$trov transfer. The facile disrotatory cyclopropyl anion ring opening reaction of 2JR2=CN, M =Ll ) at -75°C does not occur synchronously. 2,3,4-Triphenyl-endo-tricyc