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An attempted Sonogashira reaction of 2-nitroiodobenzene and phenyl acetylene catalyzed by Pd(PPh 3 ) 4 /Cu in water in the presence of pyrrolidine proceeds with simultaneous regioselective hydration of the Sonogashira alkyne leading to the corresponding aryl ketone. A series of functionalized 2-(2-nitrophenyl)-1-aryl ethanones are obtained in high yields by this procedure.
A simple and efficient procedure for Suzuki coupling of aryl bromides/iodides with aryl- and alkylboronic acids catalyzed by in situ-generated palladium(0) nanoparticles in water without any ligand in open air to produce a variety of functionalized biaryls and alkyl-aryls has been developed. The boronic acids act here as the reducing agent for the formation of Pd nanoparticles. The reactions are remarkably...
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