title: Synthesis of benzocyclohepta[b]indoles by Lewis acid catalyzed annulation of two 3-(1H-isochromen-1-yl)-1H-indoles.
abstract: A novel Lewis acid catalyzed annulation reaction has been established for the synthesis of benzocyclohepta[b]indoles. This method represents a new annulation strategy to a seven-membered carbocyclic ring system from two 3-(1H-isochromen-1-yl)-1H-indole molecules using Cu(OTf)2 catalyst; moreover, the products, benzocyclohepta[b]indoles, can be used as the rapid mercuric ion colorimetric detection reagents.
authors.affiliation: State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, China.
authors.forename: Ye-Xiang
authors.initials: YX
authors.lastname: Xie
authors.forename: Ri-Yuan
authors.initials: RY
authors.lastname: Tang
authors.forename: Ren-Jie
authors.initials: RJ
authors.lastname: Song
authors.forename: Jian-Nan
authors.initials: JN
authors.lastname: Xiang
authors.forename: Jin-Heng
authors.initials: JH
authors.lastname: Li
mesh_terms: D002384:Catalysis; D002839:Chromans / Q000737:chemistry*; D003508:Cycloheptanes / Q000737:chemistry*; D007211:Indoles / Q000737:chemistry*; D058116:Lewis Acids / Q000737:chemistry*; D008698:Mesylates / Q000737:chemistry*; D015394:Molecular Structure
chemical_list: D002839:Chromans; D003508:Cycloheptanes; D007211:Indoles; D058116:Lewis Acids; D008698:Mesylates; C012077:trifluoromethanesulfonic acid