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An efficient and inexpensive protocol for the Sonogashira-type cross coupling reactions of phenylacetylenes with a variety of haloarenes including activated aryl chlorides employing the structurally well-characterized bis(μ-iodo)bis((−)-sparteine)dicopper(I) catalyst is described.
A simple Cu/Al-HT catalyzed amination of aryl chlorides with primary and secondary aromatic amines has been developed. This ligand-free heterogeneous Cu/Al-HT catalyst, in conjunction with base, also efficiently works for the amination of aryl chlorides with cycloalkylamines. This method tolerates a variety of functional groups and does not require an expensive additive.
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