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  • Title: Regioselective synthesis of 1,3,5-substituted benzenes via the InCl(3)/2-iodophenol-catalyzed cyclotrimerization of alkynes.
    Author: Xu YL, Pan YM, Wu Q, Wang HS, Liu PZ.
    Journal: J Org Chem; 2011 Oct 21; 76(20):8472-6. PubMed ID: 21916477.
    Abstract:
    A novel indium(III)-catalyzed cyclotrimerization of alkynes in the presence of 2-iodophenol gave 1,3,5-substituted benzenes in excellent yields with complete regioselectivity. The reaction condition is tolerant to air, and atom economical, in accordance with the concept of modern green chemistry. This method provides a rapid and efficient access to 1,3,5-substituted benzenes.
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