title: RuCl₃·3H₂O catalyzed reactions: facile synthesis of bis(indolyl)methanes under mild conditions.
abstract: RuCl₃·3H₂O was found to be an effective catalyst for reactions of indoles, 2-methylthiophene, and 2-methylfuran with aldehydes to afford the corresponding bis(indolyl)methanes, bis(thienyl)methanes, and bis(fur-2-yl)methanes in moderate to excellent yields. Experimental results indicated that mono(indolyl)methanol is not the reaction intermediate under these reaction conditions.
authors.affiliation: Department of Chemistry and Biology, Gannan Normal University, Ganzhou, Jiangxi 341000, China. huqiaosheng@yahoo.com.cn
authors.forename: Hong-En
authors.initials: HE
authors.lastname: Qu
authors.forename: Chen
authors.initials: C
authors.lastname: Xiao
authors.forename: Ning
authors.initials: N
authors.lastname: Wang
authors.forename: Kai-Hui
authors.initials: KH
authors.lastname: Yu
authors.forename: Qiao-Sheng
authors.initials: QS
authors.lastname: Hu
authors.forename: Liang-Xian
authors.initials: LX
authors.lastname: Liu
mesh_terms: D002384:Catalysis; D008697:Methane / Q000031:analogs & derivatives* / Q000138:chemical synthesis* / Q000737:chemistry; D015394:Molecular Structure; D012428:Ruthenium / Q000737:chemistry*
chemical_list: D012428:Ruthenium; D008697:Methane