N-heterocyclic carbene-catalyzed cross-coupling of aromatic aldehydes with activated alkyl halides
N-Heterocyclic carbene-catalyzed umpolung of aldehydes followed by their interception with diarylbromomethanes has been reported. This conceptually novel transition-metal-free cross-coupling of aldehydes with alkyl halides works well at low catalyst loadings and under mild reaction conditions leading to the formation of diaryl acetophenone derivatives in good yields. In addition, α-halo ketones and esters can also be used as aldehyde reaction partners.
Padmanaban, Mohan,Biju, Akkattu T.,Glorius, Frank
p. 98 - 101
(2011/03/19)
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