Sequential Methyl–Fluorine Exchange Reactions of Siloxide Ions in the Gas Phase | Zendy

Correra Thiago C. | Zendy; Riveros José M. | Zendy

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Sequential Methyl–Fluorine Exchange Reactions of Siloxide Ions in the Gas Phase

Author(s) -

Correra Thiago C.,

Riveros José M.

Publication year - 2012

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.201203970

Subject(s) - fluorine , chemistry , nucleophile , metathesis , gas phase , salt metathesis reaction , ion , reaction mechanism , ion exchange , computational chemistry , organic chemistry , polymerization , catalysis , polymer

Exchange Me for a fluorine : Trimethylsiloxide ions in the presence of NF 3 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.

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