ChemicalBook > CAS DataBase List > DIBENZYL CARBONATE

DIBENZYL CARBONATE

Product Name
DIBENZYL CARBONATE
CAS No.
3459-92-5
Chemical Name
DIBENZYL CARBONATE
Synonyms
Benzyl carbonate;NSC 406789;DIBENZYL CARBONATE;dibenzyl carbazate;Dibenzylcarbonate,98%;Linezolid Impurity 50;Dibenzyl Carbonate >Dibenzyl carbonate 99%;CARBONIC ACID DIBENZYL ESTER;Carbonic acid, bis(phenylmethyl) ester
CBNumber
CB5677478
Molecular Formula
C15H14O3
Formula Weight
242.27
MOL File
3459-92-5.mol
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DIBENZYL CARBONATE Property

Melting point:
29-33 °C(lit.)
Boiling point:
180-190 °C2 mm Hg(lit.)
Density 
1.1515 (rough estimate)
refractive index 
1.5485
Flash point:
>230 °F
solubility 
Sparingly Soluble (0.099 g/L) (25°C).
form 
powder to lump
color 
White to Almost white
Sensitive 
Air Sensitive
BRN 
1882864
CAS DataBase Reference
3459-92-5(CAS DataBase Reference)
EPA Substance Registry System
Carbonic acid, bis(phenylmethyl) ester (3459-92-5)
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Safety

Hazard Codes 
Xn
Risk Statements 
21/22
Safety Statements 
36
WGK Germany 
3
TSCA 
Yes
HS Code 
29209090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H312Harmful in contact with skin

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P321Specific treatment (see … on this label).

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

TCI Chemical
Product number
C1600
Product name
Dibenzyl Carbonate
Purity
>98.0%(GC)
Packaging
1g
Price
$31
Updated
2024/03/01
TCI Chemical
Product number
C1600
Product name
Dibenzyl Carbonate
Purity
>98.0%(GC)
Packaging
5g
Price
$121
Updated
2024/03/01
Alfa Aesar
Product number
A11464
Product name
Dibenzyl carbonate, 98%
Packaging
10g
Price
$102
Updated
2024/03/01
Alfa Aesar
Product number
A11464
Product name
Dibenzyl carbonate, 98%
Packaging
50g
Price
$325.65
Updated
2024/03/01
Alfa Aesar
Product number
A11464
Product name
Dibenzyl carbonate, 98%
Packaging
250g
Price
$1194.65
Updated
2024/03/01
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DIBENZYL CARBONATE Chemical Properties,Usage,Production

Chemical Properties

Colorless low melting solid

Uses

Ionic liquids can effectively accelerate slow N-benzylation reactions utilizing dibenzyl carbonate as an alkylating reagent. Dibenzyl carbonate (DBzlC) has been used to benzylate phenylacetonitrile, benzyl phenylacetate and phenol. Selective N, N-dibenzylation of primary aliphatic amines was carried with dibenzyl carbonate in the presence of phosphonium salts.

Preparation

To a stirred solution of benzyl alcohol (0.216 g, 2.00 mol), tributylphosphine (0.303 g, 1.50 mmol), and CyTMG (0.394 g, 2.00 mmol) in DMF (2.00 mL), CO2 was added at room temperature. After 15 min, tetrabromomethane (0.663 g, 2.00 mmol) was added, the reaction vessel was sealed, and the contents were stirred for 2 h. Thereafter, the reaction mixture was diluted with ethyl acetate, washed successively with 0.5 m aqueous HCl and saturated aq. NaHCO3 solution, and dried over Na2SO4. Diphenylmetha- nol was added to the organic solution as an internal standard and the yield of dibenzyl carbonate was determined from the relative integrals of a methylene peak of the carbonate and a methine peak of diphenylmethanol in the 1H NMR spectrum of the ethyl acetate solution. Dibenzyl carbonate, prepared by a larger scale reaction of CO2 with benzyl alcohol (1.08 g, 10.0 mmol), was isolated by column chromatography (cyclohexane/ethyl acetate, 50:1) in 67.3% yield (0.816 g).

Synthesis Reference(s)

The Journal of Organic Chemistry, 60, p. 6205, 1995 DOI: 10.1021/jo00124a044

General Description

Dibenzyl carbonate (DBC) is commonly used as a benzylating agent. Dimethyl carbonate and excess of benzyl alcohol undergoes transesterification in the presence of CsF/α-Al2O3 (cesium fluoride/aluminum oxide) to form DBC. The formation of N,N-dibenzyl derivatives by the reaction of primary aliphatic amines with DBC in the presence of phosphonium salts has been investigated.

DIBENZYL CARBONATE Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from DIBENZYL CARBONATE manufacturers

Hebei Yanxi Chemical Co., Ltd.
Product
DIBENZYL CARBONATE 3459-92-5
Price
US $40.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
10 tons
Release date
2023-10-12
Hebei Weibang Biotechnology Co., Ltd
Product
DIBENZYL CARBONATE 3459-92-5
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2022-11-15
Career Henan Chemical Co
Product
DIBENZYL CARBONATE 3459-92-5
Price
US $1.00/g
Min. Order
1g
Purity
99.0%
Supply Ability
100 kg
Release date
2020-01-10

3459-92-5, DIBENZYL CARBONATERelated Search:

Benzyl chloroformate Ethyl methyl carbonate Calcium carbonate SODIUM CARBONATE, MONOHYDRATE Strontium carbonate Guanidine carbonate HOLMIUM CARBONATE LANTHANUM CARBONATE Potassium phthalimide Vinylene carbonate Propylene carbonate DIBUTYL CARBONATE Chloromethyl pivalate Titanium ethoxide Ethylene carbonate PHENYL FORMATE Diisopropyl carbonate Carbonic acid dihexyl ester

  • Benzyl carbonate
  • Carbonic acid, bis(phenylmethyl) ester
  • CARBONIC ACID DIBENZYL ESTER
  • DIBENZYL CARBONATE
  • Dibenzylcarbonate,98%
  • dibenzyl carbazate
  • NSC 406789
  • Dibenzyl carbonate 99%
  • Linezolid Impurity 50
  • Dibenzyl Carbonate &gt
  • 3459-92-5
  • 3459-92-6
  • C6H5CH2O2CO
  • Carbonates
  • Carbonyl Compounds
  • Building Blocks
  • Protection & Derivatization Reagents (for Synthesis)
  • Organic Building Blocks
  • Protection & Derivatization Reagents (for Synthesis)
  • Synthetic Organic Chemistry
  • Carbonates
  • Carbonyl Compounds
  • Organic Building Blocks