title: Synthesis of substituted phenanthrene by iron(III)-catalyzed intramolecular alkyne-carbonyl metathesis.
abstract: An efficient synthesis of functionalized phenanthrenes has been developed for the first time involving an iron(III)-catalyzed intramolecular coupling of 2'-alkynyl-biphenyl-2-carbaldehydes. A broad range of functionalized phenanthrene derivatives could be obtained in the present method in moderate to good yields with high chemo- and regioselectivity. This transformation can also be applied to the synthesis of an angularly fused tetracyclic compound. This method offers several advantages such as high selectivity, mild reaction conditions, and easy availability of starting materials.
authors.affiliation: Department of Chemistry, Jadavpur University, Kolkata-700 032, West Bengal, India.
authors.forename: Krishnendu
authors.initials: K
authors.lastname: Bera
authors.forename: Soumen
authors.initials: S
authors.lastname: Sarkar
authors.forename: Swapnadeep
authors.initials: S
authors.lastname: Jalal
authors.forename: Umasish
authors.initials: U
authors.lastname: Jana
mesh_terms: D000480:Alkynes / Q000737:chemistry*; D001713:Biphenyl Compounds / Q000737:chemistry*; D002384:Catalysis; D007501:Iron / Q000737:chemistry*; D015394:Molecular Structure; D010616:Phenanthrenes / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D000480:Alkynes; D001713:Biphenyl Compounds; D010616:Phenanthrenes; D007501:Iron