1403382-34-2Relevant academic research and scientific papers
Reaction of o-carboranes with sterically demanding N-heterocyclic carbene: Synthesis and structural characterization of 1:1 adducts
Zheng, Fangrui,Xie, Zuowei
, p. 12907 - 12914 (2012)
Several nido-carborane-carbene 1:1 adducts were prepared in very high yields from the reaction of o-carboranes with 1,3-bis(2,6-diisopropylphenyl) imidazol-2-ylidene in dry THF at room temperature. Single-crystal X-ray analyses reveal that they are zwitterionic salts consisting of a nido carborane cage and imidazolium moiety that are linked by a five-coordinate boron atom. They are inert toward carbenes, but sensitive toward moisture and water, leading to the formation of deboration products, nido-C2B9 ions. These results shed light on the deboration reaction mechanism of o-carboranes.
