Welcome to LookChem.com Sign In|Join Free

Article Doi

Involvement of Iron Alkyl Complexes and Alkyl Radicals in the Kharasch Reactions: Probing the Catalysis using Iron Phosphine Complexes

DOI: 10.1039/DT9920001259

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 1259 - 1266 (1992)

Update date:2022-08-05

Topics:

Authors:

Evans, David J.Evans, David J.

Henderson, Richard A.Henderson, Richard A.

Hills, AdrianHills, Adrian

Hughes, David L.Hughes, David L.

Oglieve, Kay E.Oglieve, Kay E.

Read Full Text PDF DownLoad Join now for total 90,000,000 free articles

Article abstract of DOI:10.1039/DT9920001259

The X-ray crystal structure of trans- (depe = EtPCH2CH2PEt2) has been determined, and its catalysis of the reactions between MgBrEt and RBr (R = Et, Prn, Bun, PhCH2 or H2CCHCH2) to give alkanes and alkenes investigated.Detailed analysis of the products and the time courses of the reactions demonstrate that the hydrido-species transn+ (n = 0 or 1) are not intermediates in the reaction, but are products formed in the termination steps.It is shown that the catalysis can proceed by one of two pathways, depending on the alkyl halide.One pathway is proposed to involve the intermediacy of iron(I) species, and the other of iron(III) complexes.Both catalytic cycles contain the same fundamental reaction: the abstraction of a β-hydrogen atom from a n+ species by alkyl radicals to give the alkane and ethylene.The X-ray crystal structure of trans-BPh4 is reported.

View More

Products guided by the article

Product name:trans-bis[1,2-bis(diethylphosphino)ethane]bromohydridoiron tetraphenylborate

Cas No:143108-64-9

143108-64-9

R&D Labs maybe for 143108-64-9

Relevant to this article

Hot Product