PENTAERYTHRITOL TRIALLYL ETHER Property

Boiling point:

156-161°C 3mm

Density 

0.9850

refractive index 

1.4650 (estimate)

storage temp. 

2-8°C

pka

14.35±0.10(Predicted)

EPA Substance Registry System

Pentaerythritol triallyl ether (1471-17-6)

Safety

Risk Statements 

10-36/37/38

Safety Statements 

16-26-36/37/39

RIDADR 

1993

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P273Avoid release to the environment.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

PENTAERYTHRITOL TRIALLYL ETHER Chemical Properties,Usage,Production

Application

Crosslinkers and thickeners for superabsorbent polymers (SAP), unsaturated polyesters, UV curing resins, polyurethane resins, Carbomers.Also used in adhesives in powders coatings and emulsions.

Synthesis

3-(Prop-2-ynyloxy)-2,2-bis((prop-2-ynyloxy)methyl)propan-1-ol (35). An aqueous solution of NaOH (40 wt %, 10 mL) was added to a solution of pentaerythritol (2.00 g, 14.7 mmol) in 15 mL of dimethylsulfoxide (DMSO). The solution was stirred at rt for 30 min. Propargyl bromide (97%, 9.8 mL, 110 mmol) was then added, and the solution was kept at rt for an additional 10 h. The reaction mixture was then poured into 150 mL of EtOAc and washed with H2O (50 mL × 2) as well as brine (50 mL). The organic layer was dried by Na2SO4 and filtered. The filtrate was concentrated, and the residue was purified by FC (EtOAc/hexane = 1/4). 2.29 g of yellowish oil 35 (yield: 62%). 1H NMR (200 MHz, CDCl3) δ: 4.13 (d, 6H, J = 2.4 Hz), 3.69 (d, 2H, J = 6.4 Hz), 3.56 (s, 6H), 2.43 (t, 3H, J = 2.4 Hz).