Wiktionary
catecholborane
n. (context organic compound English) An organoboron compound derived from catechol and a borane, useful in organic synthesis.
Wikipedia
Catecholborane
Catecholborane (abbreviated HBcat) is an organoboron compound that is useful in organic synthesis. This colourless liquid is a derivative of catechol and a borane, having the formula CHOBH.