title: A thiocyanato-bridged copper(I) cubane complex and its application in palladium-catalyzed Sonogashira coupling of aryl halides.
abstract: Reaction of copper(I) thiocyanate with 1,1'-bis(di-tert-butylphosphino) ferrocene (dtbpf) in a 2:1 molar ratio in DCM-MeOH (50:50 V/V) afforded a tetranuclear copper(I) complex [Cu4(μ3-SCN)4(κ(1)-P,P-dtbpf)2] (1) with a cubane-like structure. Complex 1 was shown to be an efficient catalyst in comparison to CuI in the Sonogashira reaction. The coupling products were obtained in high yields by using Pd loadings of 0.2 mol% as well as complex-1 of 0.1 mol%.
authors.affiliation: Department of Chemistry, University of Delhi, Delhi-110007, India. manojtri@gmail.com.
authors.forename: Manoj
authors.initials: M
authors.lastname: Trivedi
authors.forename: Gurmeet
authors.initials: G
authors.lastname: Singh
authors.forename: Abhinav
authors.initials: A
authors.lastname: Kumar
authors.forename: Nigam P
authors.initials: NP
authors.lastname: Rath