Thomas, Helen R., Deeth, Robert J., Clarkson, Guy J. and Rourke, Jonathan (2011) Palladium(II) agostic complex : exchange of Aryl–Pd and Alkyl–Pd bonds. Organometallics, Vol.30 (No.21). pp. 5641-5648. doi:10.1021/om200451v

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Abstract

Cyclopalladation of 2-tbutyl-6-(4-fluorophenyl)pyridine with palladium acetate cleanly gives cyclometalated complex 3 with an aryl–Pd bond. Replacement of the acetates by chloride gives the monomeric species 4 with a crystal structure confirming the presence of an agostic interaction from the alkyl group. Reaction of 3 with Na(acac) initially gives the monomeric acac complex 5 which maintains the aryl–Pd bond. Complex 5 shows fluxional behavior of the acac group, and this provides a pathway for its isomerization to complex 6 which has an alkyl–Pd bond; complex 6 was characterized crystallographically. Reaction of agostic 4 with triphenylphosphine gives an initial complex that maintains the aryl–Pd bond, but this complex isomerizes to crystallographically characterized 8 which has an alkyl–Pd bond.

Item Type:	Journal Article
Subjects:	Q Science > QD Chemistry
Divisions:	Faculty of Science > Chemistry
Library of Congress Subject Headings (LCSH):	Palladium, Transition metal complexes, Organometallic chemistry, Activation (Chemistry), Organic compounds -- Synthesis
Journal or Publication Title:	Organometallics
Publisher:	American Chemical Society
ISSN:	0276-7333
Official Date:	2011
Dates:	Date Event 2011 Published
Volume:	Vol.30
Number:	No.21
Page Range:	pp. 5641-5648
DOI:	10.1021/om200451v
Status:	Peer Reviewed
Publication Status:	Published

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