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Benzyl vinylcarbamate

CAS No.
84713-20-2
Chemical Name:
Benzyl vinylcarbamate
Synonyms
benzyl vinylcarbamate;N-Cbz-ethenamine;benzyl ethenylcarbamate;BENZYL-N-VINYLCARBAMATE;N-Vinyl-O-benzyl urethane;O-Benzyl-N-vinylcarbamate;benzyl N-ethenylcarbamate;Phenylmethyl ethenylcarbamate;Carbamic acid, N-ethenyl-, phenylmethyl ester
CBNumber:
CB1679005
Molecular Formula:
C10H11NO2
Molecular Weight:
177.2
MDL Number:
MFCD04114067
MOL File:
84713-20-2.mol
MSDS File:
SDS
Last updated:2024-03-26 11:48:08

Benzyl vinylcarbamate Properties

Melting point 43-44°C
Boiling point 272℃
Density 1.089
Flash point 118℃
storage temp. Keep in dark place,Inert atmosphere,Store in freezer, under -20°C
solubility Chloroform (Slightly), Ethyl Acetate (Slightly)
form Solid
pka 11.04±0.46(Predicted)
color White to Off-White

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P280-P305+P351+P338
Risk Statements  36/37/38
Safety Statements  26-36/37/39

Benzyl vinylcarbamate price More Price(15)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TRC B316510 BenzylVinylcarbamate 84713-20-2 2.5g $305 2021-12-16 Buy
Biosynth Carbosynth FB141802 Benzyl Vinylcarbamate 84713-20-2 2g $400 2021-12-16 Buy
AK Scientific 3024AC Benzylvinylcarbamate 84713-20-2 2g $590 2021-12-16 Buy
Biosynth Carbosynth FB141802 Benzyl Vinylcarbamate 84713-20-2 1g $250 2021-12-16 Buy
Biosynth Carbosynth FB141802 Benzyl Vinylcarbamate 84713-20-2 100mg $80 2021-12-16 Buy
Product number Packaging Price Buy
B316510 2.5g $305 Buy
FB141802 2g $400 Buy
3024AC 2g $590 Buy
FB141802 1g $250 Buy
FB141802 100mg $80 Buy

Benzyl vinylcarbamate Chemical Properties,Uses,Production

Uses

Benzyl Vinylcarbamate is used as a reagent in the synthesis of CF3- or -?CF2-?substituted tetrahydroquinolines.

Preparation

A 1-L flask was equipped with a variable speed pump, a mechanical stirrer, a temperature controller, a 4" (10 cm) column packed with ceramic saddles, a distillation head, a spiral condenser (cooled with water at 10–15 ℃), and a receiver. The flask was charged with toluene (150–200 mL) and phenothiazine (0.5 g) and the solution was heated to 105–110 ℃. The receiver was charged with benzyl alcohol (86 g, 0.8 mol), phenothiazine (0.05 g), and triethylamine (0.1–0.3 g). This mixture was cooled in ice and stirred. A solution of acryloyl azide (1 mol), prepared as described above, was pumped into the distillation flask over a period of 4–5 h, maintaining the pot temperature at 105–110 ℃ with a heating mantle. The vapor temperature varied, depending on the rate of addition of the azide, but was in the range 80–100 ℃. The distillate was passed directly into the benzyl alcohol mixture. After the addition of acryloyl azide, the distillation continued, generating a further 10–20 mL of toluene. The receiver was then removed from the distillation set-up, and its contents were stirred at 0–5 ℃ for 1– 2 h. The product mixture was then allowed to gradually warm to room temperature and was stirred until HPLC analysis indicated complete reaction. The mixture was then concentrated in vacuo to a weight of 200–250 g. The residue was treated with heptane (300–350 mL) and cooled to 15 ℃ with stirring. A few seed crystals of benzyl N-vinyl carbamate 810 were added, and the mixture was stirred for 2–3 h. The product was collected by filtration, washed with heptane, and dried in vacuo. Yield 115–128 g (65–72%); mp 41–44 ℃.

Application

Benzyl-N-vinyl carbamate (Z-vinylamine; Benzyl vinylcarbamate) is a valuable synthetic intermediate. This compound undergoes alkylation readily on the carbon R to the nitrogen, a property that has been used in the synthesis of a-lactam antibiotics. Z-vinylamine can be readily polymerized into polyvinyl amine derivatives[1].

Synthesis Reference(s)

The Journal of Organic Chemistry, 54, p. 4649, 1989 DOI: 10.1021/jo00280a036

References

[1] Govindan, Cheruthur K. “An Improved Process for the Preparation of Benzyl-N-vinyl Carbamate1.” Organic Process Research Development 6 1 (2001): 74–77.

Benzyl vinylcarbamate Preparation Products And Raw materials

Raw materials

Preparation Products

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