Stereospecific trisalkylation of pentaborane(9) using lithium triethylhydridoborate
Abstract
Lithium triethylhydridoborate acts as a stereospecific trisalkylating agent toward B5H9 producing exlusively 2,3,4-triethylpentaborane(9), while lithium tri(s-butyl)hydridoborate produces only the monoalkyl product 2-(s-butyl)pentaborane(9).