Bis(1-Methyl-ortho-Carboranyl)Borane

The Lewis superacid, bis(1-methyl-ortho-carboranyl)borane, is rapidly accessed in two steps. It is a very effective hydroboration reagent capable of B-H addition to alkenes, alkynes, and cyclopropanes. To date, this is the first identified Lewis superacidic secondary borane and most reactive neutral hydroboration reagent.

Automated summary

This passage describes a Lewis superacid called bis(1-methyl-ortho-carboranyl)borane, which can be rapidly synthesized in two steps. It is a highly effective hydroboration reagent capable of B-H addition to alkenes, alkynes, and cyclopropanes. To date, it is the first identified Lewis superacidic secondary borane and the most reactive neutral hydroboration reagent.