Synthesis of Quinoline-2-thiones via Tandem Indium(III)-Promoted Friedel−Crafts Alkenylation−Cyclization of 2-Alkynylphenyl Isothiocyanates
摘要:
A new approach to the synthesis of 4-aryl- or 4-arylthioquinoline-2-thiones via indium(111) reagent-mediated tandem Friedel-Crafts alkenylationcyclization of 2-alkynylphenyl isothiocyanates is described.
A variety of 4-arylquinoline-2-thiones and 3-arylthieno[2,3-b]indoles were synthesized in high yields via TfOH-promoted tandem Friedel-Crafts alkenylation-cyclization reactions of 2-alkynylphenyl isothiocyanates. (c) 2009 Elsevier Ltd. All rights reserved.
Synthesis of Quinoline-2-thiones via Tandem Indium(III)-Promoted Friedel−Crafts Alkenylation−Cyclization of 2-Alkynylphenyl Isothiocyanates
A new approach to the synthesis of 4-aryl- or 4-arylthioquinoline-2-thiones via indium(111) reagent-mediated tandem Friedel-Crafts alkenylationcyclization of 2-alkynylphenyl isothiocyanates is described.