ISSN:
0009-2940
Keywords:
C-H bond activation
;
Ligand effects
;
Iron chemistry
;
Reaction mechanisms
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The presence of a cyclopentadienyl ligand brings about a complete shift of regioselectivity in the Fe+-mediated dehydrogenation of 1,8-diphenyloctane (1). While “bare” Fe+, due to the formation of an intramolecular sandwich-like complex, activates the internal C-4/C-5 positions of the alkyl chain, this chelate effect is no longer operative in the gas-phase chemistry of Fe(C5H5)+ with 1. Labeling experiments demonstrate that the C-1/C-2 and (to a minor extent) the C-2/C-3 methylene groups are activated, and a possible origin of this remarkable ligand effect is discussed.
Additional Material:
1 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19951280620
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