title: Iron-Catalyzed 1,5-Enyne Cycloisomerization via 5-Endo-Dig Cyclization for the Synthesis of 3-(Inden-1-yl)indole Derivatives.
abstract: An Fe(OTf)3-catalyzed 1,5-enyne cycloisomerization via 5-endo-dig cyclization is described for the synthesis of 3-(1-indenyl)indole derivatives. Since a variety of 1,5-enynes are readily accessible via Heck-Suzuki coupling, this strategy provides a rapid and easy access to a wide range of highly substituted 3-(1-indenyl)indoles in good yields.
authors.affiliation: Department of Chemistry, Jadavpur University , Kolkata 700 032 West Bengal, India.
authors.forename: Swapnadeep
authors.initials: S
authors.lastname: Jalal
authors.affiliation: Department of Chemistry, Jadavpur University , Kolkata 700 032 West Bengal, India.
authors.forename: Kartick
authors.initials: K
authors.lastname: Paul
authors.affiliation: Department of Chemistry, Jadavpur University , Kolkata 700 032 West Bengal, India.
authors.forename: Umasish
authors.identifier: 0000-0002-1583-5129
authors.initials: U
authors.lastname: Jana