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2005
Polyphenylalkane derivatives
Q 0720
Direct Access to Ketones from Aldehydes via Rhodium-Catalyzed Cross-Coupling
with Potassium Trifluoro(organo)borates. — The first cross-coupling re15- 082 Reaction
action of organometallic reagents with aldehydes to access ketones such as (III) or (V)
under mild conditions is described. Deuterium labeling studies suggest a Heck-type
mechanism followed by an unusual hydrogen transfer. Both dioxane or toluene may be
used as solvent; however, the presence of acetone is required to act as a hydride acceptor. — (PUCHEAULT, M.; DARSES*, S.; GENET, J.-P.; J. Am. Chem. Soc. 126
(2004) 47, 15356-15357; Lab. Synth. Sel. Org. Prod. Nat., CNRS, Ec. Natl. Super.
Chim., F-75231 Paris, Fr.; Eng.) — Kieslich
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