Primary selectivity in the activation of the carbon-hydrogen bonds of propane by silica supported zirconium hydride

Gerald P. Niccolai, Jean-Marie Maurice Basset*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

The stoichiometric reaction between propane and (≡ SiO)3ZrH leads to the formation of a mixture of (≡ SiO)3ZrCH(CH3)2 and (= SiO)3ZrCH2CH2CH3. The relative amounts of each complex resultant from the reaction was determined by (a) reaction of (≡ SiO)3ZrC3H7 with D2O to produce quantitatively a mixture of CH3CH3CH2D and CH3CHDCH3 which in turn were discriminated by mass spectroscopy, and (b) reaction of (≡ SiO)3ZrC3H7 with O2 followed by HCl yielding 1-propanol and 2-propanol in low yield. Each of these methods indicated that (≡ SiO)3ZrCH2CH2CH3 was the major product of propane activation. The catalytic deuteration of propane by deuterium at room temperature catalysed by (= SiO)3ZrH showed that the primary C-H bonds of propane reacted seven times faster than the secondary C-H bonds. A mechanism of degenerate carbon-hydrogen bond activation is invoked for the latter reaction.

Original languageEnglish (US)
Pages (from-to)145-156
Number of pages12
JournalApplied Catalysis A: General
Volume146
Issue number1
DOIs
StatePublished - Oct 22 1996

Keywords

  • C-H bond activation
  • Catalytic deuteration
  • Zirconium(IV)

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

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