DIBENZYL CARBONATE

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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 $40.00-40.00/kg
Min. Order: 1kg
Purity: 0.99
Supply Ability: 10 tons
Release date: 2023-10-12

Hebei Guanlang 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