17805-18-4

Upstream product

• 17805-19-5 1,2-diphenyl-ortho-carborane 
• 591-50-4 iodobenzene 
• 16986-24-6 1,7-dicarba-closo-dodecaborane⁽¹²⁾ 

Downstream Products

• 63292-92-2 1,7-C2B10H10-1-(η-C6H5)Cr(CO)3-7-C6H5 

Relevant academic research and scientific papers

Redetermination of 1,7-diphenyl-1,7-dicarba-closo-dodecaborane(12)

The previous determination of the structure of the title molecule, C14H20B10 [Astakhin, Romanov, Gusev, Kalinin, Zakharkin & Los (1977). Zh. Strukt. Khim. 18, 406-408] with R = 0.15 has been superseded by the present determination which has R = 0.06.

C-arylation and C-heteroarylation of icosahedral carboranes via their copper(I) derivatives

Reaction between C-mono- or C,C'-di-copper(I) derivatives of 1,2- 1,7-, or 1,12-dicarba-closo-dodecaborane(12) and aryl iodides in the presence of pyridine gives the corresponding C-mono- or C,C'-diaryl derivatives of 1,7- and 1,12-dicarba-closo-dodecaboranes(12); 1,2-dicarba-closo-dodecaborane(12) gives only the C-monoaryl product.Cyclic or linear arylene coupled systems are obtained when di-iodoarenes are used.Copper(I) derivatives may be generated from C-unsubstituted or C-monosubstituted carboranes using copper(I) t-butoxide when substituents incompatible with the use of C-lithio-intermediates are involved.The C-copper(I) derivative of 1,2-dicarba-closo-dodecaborane(12) gives 1,2-di-2'-pyridyl-1,2-dicarba-closo-dodecaborane(12) specifically with 2-bromopyridine.The (inferred) intermediate mono-2-pyridyl-derivative, obtained independently from 2-ethynylpyridine and the dimethylsulphide complex of decaborane, gives 1-phenyl-2,2'-pyridyl-1,2-dicarba-closo-dodecaborane(12) upon conversion into its copper(I) derivative and treatment with iododobenzene.However, the copper(I) derivative of 1-phenyl-1,2-dicarba-closo-dodecaborane(12) does not react to a significant extent with 2-bromopyridine.