✦ LIBER ✦

Cycloaddition reactions of trienoneiron tricarbonyl complexes. the oxidative rearrangement of σ,π-allyliron tricarbonyl complexes.

✍ Scribed by Zeev Goldschmidt; Y. Bakal

Book ID: 104243916
Publisher: Elsevier Science
Year: 1977
Tongue: French
Weight: 213 KB
Volume: 18
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)92801-1

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✦ Synopsis

The reactions of uni-and biparticulate electrophiles' with cyclic trieneiron tricarbonyl complexes can lead to a variety of cycloaddition products, 2 the nature of which depends upon factors which are not yet completely understood. Recently, we have recognixed and explored a novel 1,5-cycloaddition of tetracyanoethylene (TCNE) to troponeiron tricarbonyl (1, forming the a;n-allyliron tricarbonyl complex 2. Selective deuterium labeling suggested the involvement of the uncomplexed double bond in the initial electrophilic attack.3 Concurrently, Eisenstadt reported4 an analogous formal 1,5-addition of biparticulate electrophiles, to give 4_, on treating troponiumiron tricarbonly fluoroborate 3 with either CN-or H-. -CN I Fe (CO) 3

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