Cobalt-promoted B-H and C-H activation: facile B-C coupling of carboranedithiolate and cyclopentadienyl.
We report the one-pot reactions of the 16e(-) half-sandwich complex CpCoS(2)C(2)B(10)H(10) (1), methyl propiolate, and 3e(-)-donor ligands, which lead to selective B-functionalization at carborane with cyclopentadienyl as a functional group at ambient temperature in good yields. Metal-promoted activations of both a B-H bond of the carborane and a C-H bond of the Cp unit take place sequentially in the cooperation of organic ligands. The reaction requires a 3e(-)-donor ligand and an activated alkyne and is therefore suitable for a broad range of substrates. This investigation provides a simple and efficient synthetic route to B-functionalized carborane derivatives.
State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China.
Rui
R
Zhang
Lin
L
Zhu
Guifeng
G
Liu
Huimin
H
Dai
Zhenzhong
Z
Lu
Jianbo
J
Zhao
Hong
H
Yan
D000480:Alkynes / Q000737:chemistry*; D001880:Boranes / Q000737:chemistry*; D003035:Cobalt / Q000737:chemistry; D003517:Cyclopentanes / Q000737:chemistry*; D008958:Models, Molecular; D013438:Sulfhydryl Compounds / Q000737:chemistry*
D000480:Alkynes; D001880:Boranes; D003517:Cyclopentanes; D013438:Sulfhydryl Compounds; D003035:Cobalt