发明授权
US07642391B1 Palladium-catalyzed coupling of aryl halides with alkynes 失效
钯催化的芳基卤化物与炔烃的偶联

Palladium-catalyzed coupling of aryl halides with alkynes
摘要:
A method is provided to couple an aryl halide to an alkyne comprising reacting a compound of the formula ArX, wherein Ar is a substituted or unsubstituted aryl group and X is I or Br, with a compound of the formula HC≡C—R1 wherein R1 is a substituted or unsubstituted organic group, in the presence of an effective amount of a phosphine-free, oxime-free palladium catalyst; (C1-C4)alkyl N+(−OAc) or an alkali metal carbonate, to yield a compound of the formula Ar—C≡C—R1, wherein the reaction is carried out in the absence of an organic amine or copper(I).
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