Organic Mass Spectrometry p. 663 - 668 (1988)
Update date:2022-08-11
Topics:
Campanaro, A.
Marvin, C. H.
Morehouse, S. P.
McMahon, T. B.
Gas-phase ion-molecule reactions of a variety of fluorosilyl carbanions with compounds containing double bonds to oxygen, X=O, have been examined using pulsed ion cyclotron resonance spectroscopy.The predominant reaction channel observed for species not containing acidic hydrogen is a Wittig-like process involving Si-O bond formation and elimination of X=CH2 species.The gas-phase acidity of F3Si(CH3) has been determined and those of F2Si(CH3)2 and FSi(CH3)3 have been estimated.From the fluoride transfer reactions of F3SiCH2- the fluoride affinity of F2Si=CH2 has been estimated and limits on the ? bond strength in this silaethene obtained.Potential analytical applications of the Wittig reactivity have been discussed.
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