9-Borabicyclo[3.3.1]nonane dimer

9-Borabicyclo[3.3.1]nonane dimer

CAS № 21205-91-4
EC № 629-228-4
Chemical formula: C16H30B2
Mol weight: 244.04
Synonym: 9-BBN

Physical properties:

White powder or crystals.
Melting point: 152-156 °С.
Bulk density:   400-500 g/l.
Solubility in tetrahydrofuran: 0.58 mol/l at 25 °С.
Solubility in hexane:                0.50 mol/l at 25 °С.
Solubility in chloroform:         1.00 mol/l at 25 °С.


  1. Hydroboration of alkynes and alkenes with forming of alkenyl- and alkyl-9-BBN derivatives – reagents for Suzuki cross-coupling used in pharmaceutical synthesis.
  2. Reduction of aldehydes and ketones to alcohols, of tertiary amides to amines, of some α,β-unsaturated aldehydes and ketones to relevant allyl alcohols.
  3. Application to polymer derivatization.
  4. Preparation stereoselective reducing agents: B-isopinocampheyl-9-BBN, lithium B-isopi­nocampheyl-9-borabicyclo[3.3.1]nonyl hydride, 9-BBN-nopol benzyl ether adduct, lithium hydrido(9-BBN-nopol benzyl ether adduct).



Appearance White powder or crystals
Purity 98.0 % min
Melting point 152 o C min