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Carbonyliron Complexation and Carbonyl Insertion of Allenic Ketones


Trifonov, Latchezar S; Orahovats, Alexander S; Linden, Anthony; Heimgartner, Heinz (1992). Carbonyliron Complexation and Carbonyl Insertion of Allenic Ketones. Helvetica Chimica Acta, 75:1872-1879.

Abstract

The allenic alpha-ketones 5a-f give, on irradiation in the presence of [Fe(CO)5], the bis(tricarbonyliron) complexes 6a-f. In the case of ketone 5e, a minor bis(tricarbonyliron) complex with the proposed unique structure 8 is also obtained. Ketones 5a-d, which are disubstituted at C(4), under the same conditions, afford also the lactones 7a-d in moderate yields. The latter reaction is a new carbonyliron-mediated carbonyl insertion. The structure of the binuclear complexes 1a and 6e were established by X-ray crystallography.

Abstract

The allenic alpha-ketones 5a-f give, on irradiation in the presence of [Fe(CO)5], the bis(tricarbonyliron) complexes 6a-f. In the case of ketone 5e, a minor bis(tricarbonyliron) complex with the proposed unique structure 8 is also obtained. Ketones 5a-d, which are disubstituted at C(4), under the same conditions, afford also the lactones 7a-d in moderate yields. The latter reaction is a new carbonyliron-mediated carbonyl insertion. The structure of the binuclear complexes 1a and 6e were established by X-ray crystallography.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Language:English
Date:1992
Deposited On:03 Jan 2014 07:02
Last Modified:05 Apr 2016 17:20
Publisher:Wiley-Blackwell
ISSN:0018-019X
Funders:Swiss National Science Foundation, F. Hoffmann-La Roche AG, Basel
Publisher DOI:https://doi.org/10.1002/hlca.19920750613

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