Catalytic Alkynylation Coupling Reactions by Copper(II) Complex in Water and Its Applications to Domino Synthesis of 2-Arylindoles

[摘要]：A mild and clean protocol for the alkynylation coupling of aryl iodides with terminal alkynes has been developed in yields up to 99 % in the presence of sulfonato-Cu-II(salen) in water. Domino synthesis of 2-arylindoles from 2-iodoaniline and aryl acetylene was successfully carried out by this catalytic system, and the catalyst could be easily recovered and reused.

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