Hindered organoboron groups in organic synthesis. 15. Preparation and properties of di(2,4,6-triisopropylphenyl)borane

Article abstract of DOI:10.1016/0040-4039(91)80798-B

A facile, high yield preparation of bis(2,4,6[triisopropylphenyl)borane (Trip₂BH, ditripylborane) (1), a unique, stable, solid monomeric diorganylborane is outlined. It only slowly hydroborates alkynes and, most puzzlingly, with little regioselectivity. At room temperature (1) does not hydroborate alkenes.