1250. Bis(1,2-dimethylpropyl)borane

Nomenclature

CAS number: 1069-54-1
Disiamylborane; di-sec-isoamylborine; bis(3-methyl-2-butyl)borane.
C10H23B; mol wt 154.10.
C 77.94%, H 15.04%, B 7.02%.

Description and references

Prepn: Brown, Zweifel, J. Am. Chem. Soc. 83, 1241 (1961). Use in selective reductions: G. W. Kabalka, C. F. Lane, Chem. Tech. 6, 324 (1976).

Chemical structure

Properties

Crystals, mp 35-40°. Unstable to air.

Use

Selective reagent for steric control of hydroboration of olefins.