TRI-TERT-BUTYL BORATE Property

Melting point:

18-19 °C (lit.)

Boiling point:

101 °C/74 mmHg (lit.)

Density 

0.811 g/mL at 25 °C (lit.)

refractive index 

n20/D 1.389(lit.)

Flash point:

85 °F

storage temp. 

Flammables area

form 

Liquid

Specific Gravity

0.811

color 

Colorless

Hydrolytic Sensitivity

7: reacts slowly with moisture/water

Safety

Risk Statements 

10

Safety Statements 

16-33

RIDADR 

UN 1993 3/PG 3

WGK Germany 

3

TSCA 

No

HazardClass 

3.2

PackingGroup 

III

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H226Flammable liquid and vapour

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

TRI-TERT-BUTYL BORATE Chemical Properties,Usage,Production

Chemical Properties

CLEAR COLOURLESS LIQUID

Uses

Tri-tert-butyl borate can be used as:

• An additive in the synthesis of chiral α-hydroxy esters by reacting dimethylzinc with α-ketoesters using (?)-2-exo-morpholinoisobornane-10-thiol.
• A starting material in the synthesis of boronate of (+)-pinane-2,3-diol.

Synthesis Reference(s)

The Journal of Organic Chemistry, 43, p. 2731, 1978 DOI: 10.1021/jo00407a051

General Description

Tri-tert-butyl borate is an organoborate commonly used to prepare other borate esters. It is also used as a substrate in Rh-catalyzed carbonylation reactions.