On the mechanism of Fe +-mediated CH/CC bond activation as studied by intramolecular kinetic isotope effects

A detailed insight into the mechanistic aspects of the Fe +-mediated formation of molecular hydrogen and ethylene from 4-heptanone ( 1a) and its isomer 3-ethyl-2-pentanone ( 2a) is provided by determining the intramolecular kinetic isotope effects associated with several stages of these multi-step p...

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Bibliographic Details
Published in:International journal of mass spectrometry and ion processes 1991-08, Vol.107 (3), p.559-564
Main Authors: Schröder, Detlef, Jeske, Frank, Schwarz, Helmut
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
Mass spectrometry
Organic chemistry
Reactivity and mechanisms
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Summary:A detailed insight into the mechanistic aspects of the Fe +-mediated formation of molecular hydrogen and ethylene from 4-heptanone ( 1a) and its isomer 3-ethyl-2-pentanone ( 2a) is provided by determining the intramolecular kinetic isotope effects associated with several stages of these multi-step processes. The subtle differences observed in the metastable ion dissociation of the two complexes 1a-Fe + and 2a-Fe + point to changes in (i) the energy contents and (ii) the CH clouds seen by the (anchored) Fe +.
ISSN:0168-1176
1873-2801
DOI:10.1016/0168-1176(91)80049-S