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HomeProduct name listBenzyl vinyl ether

Benzyl vinyl ether

Benzyl vinyl ether Structural

What is Benzyl vinyl ether?

The Uses of Benzyl vinyl ether

Benzyl vinyl ether is an organic raw material intermediate compound used in the synthesis of 2-(Benzyloxy)acetaldehyde and 3-(Benzyloxy)cyclobutanone.

What are the applications of Application

A crystalline poly(benzyl vinyl ether) (PBVE) was obtained by the polymerization of benzyl vinyl ether (BVE). The benzyl vinyl ether polymerization has been investigated in toluene by Et3Al-TiCJ4 catalyst. When the catalyst preparation and the monomer addition were carried out at 0°C, and the reaction mixture was brought to 60°C, an insoluble polymeric product was obtained with poly(benzyl vinyl ether) (PBVE). This was formed by the reaction of PBVE and TiC14 in the catalyst system and the subsequent hydrolysis of the reaction product. The living cationic polymerization of benzyl vinyl ether was achieved by the CH3CH(OiBu)OCOCHil)/EtAICl2 initiating system in the presence of added bases. Polymerizations in the presence of ethyl acetate at below 0°C in a non-polar solvent (toluene or CCl4 ) gave living polymers with a narrow molecular weight distribution (MWD) (Mw/M. - 1.1)[1-2].

Synthesis

Benzyl vinyl ether is prepared by the reaction of vinyl acetate and benzyl alcohol. The steps are as follows:
Benzyl alcohol (5.18 mL, 50.0 mmol) and vinyl acetate (9.22 mL, 100 mmol, 2.0 equiv) are added to a suspension of [Ir(cod)Cl]2 (336 mg, 0.500 mmol, 1 mol %) and Na2CO3 (3.18 g, 30.0 mmol, 0.6 equiv) in toluene (50 mL). After stirring for 2 hours at 100° C., the mixture obtained is cooled down to ambient temperature and filtered on Celite. The filtrate is concentrated under reduced pressure and the residue purified by flash chromatography on silica gel (petroleum ether/EtOAc: 98/2) in order to produce a yellow oil (5.15 g, 77%). 1H-NMR (CDCl3, 400 MHz) δ 7.39-7.29 (m, 5H), 6.57 (dd, J=14.3 Hz and J=6.8 Hz, 1H), 4.76 (s, 2H), 4.30 (dd, J=14.3 Hz and J=2.0 Hz, 1H), 4.08 (dd, J=6.8 Hz and J=2.0 Hz, 1H).
Benzyl vinyl ether synthesis

References

[1] Sadahito Aoshima, Eiichi Kobayashi, Shigeyuki Iwasa. “Living Cationic Polymerization of Benzyl Vinyl Ether and Its Block Copolymers with Narrow Molecular Weight Distribution.” Polymer Journal 26 8 (1994): 912–919.
[2] Heimei Yuki. “Polymerization of Benzyl Vinyl Ether with a Ziegler Catalyst and Reaction of Poly(benzyl vinyl ether) with TiCl4.” Polymer Journal 1 3 (1970): 271–277.

Properties of Benzyl vinyl ether

Boiling point: 183-184 °C
Density  0.9710 g/cm3
Flash point: 68 °C
storage temp.  under inert gas (nitrogen or Argon) at 2-8°C
color  Colourless
Specific Gravity 0.97
InChI InChI=1S/C9H10O/c1-2-10-8-9-6-4-3-5-7-9/h2-7H,1,8H2

Safety information for Benzyl vinyl ether

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H302:Acute toxicity,oral
Precautionary Statement Codes P280:Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for Benzyl vinyl ether

InChIKey AZDCYKCDXXPQIK-UHFFFAOYSA-N
SMILES C1(COC=C)=CC=CC=C1

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