19F NMR Studies of the Dearylation of Octaphenylcyclotetrasilane By Trifluoromethanesulfonic
Abstract
The chemo- and stereoselectivity of the dearylation reaction of octaphenylcyclotetrasilane with trifluoromethanesulfonic acid was studied using 19F NMR. Up to four triflate groups could be easily introduced to the ring. Substitution of the fifth phenyl group was accompanied by ring cleavage. Dearylation competes with the exchange of silyl triflates with triflic acid and leads to the thermodynamic distribution of stereoisomers.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 25, 1992
- Accession Number
- ADA251170
Entities
People
- Eric Fossum
- Jerzy Chrusciel
- Krzysztof Matyjaszewski
- Marek Cypryk
Organizations
- Carnegie Mellon University