Sequential Methyl–Fluorine Exchange Reactions of Siloxide Ions in the Gas Phase
Authors:
- 10 July 2012
- journal article
- research article
- Published by Wiley in Angewandte Chemie International Edition
- Vol. 51 (34) , 8632-8635
Abstract
Exchange Me for a fluorine: Trimethylsiloxide ions in the presence of NF3 in the gas phase undergo an unusual and sequential metathesis-type reaction wherein methyl groups are exchanged for fluorine. Theoretical calculations suggest that the reaction proceeds by a three-step internal-nucleophilic-displacement mechanism which features a pentacoordinated siliconate species (see picture) as a transition state rather than as an intermediate.Keywords
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