Sequential Methyl–Fluorine Exchange Reactions of Siloxide Ions in the Gas Phase
作者:Thiago C. Correra、José M. Riveros
DOI:10.1002/anie.201203970
日期:2012.8.20
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