Dimethyl (1-Diazo-2-oxopropyl)phosphonate

Product Name: Dimethyl (1-Diazo-2-oxopropyl)phosphonate
CAS No.: 90965-06-3
Chemical Name: Dimethyl (1-Diazo-2-oxopropyl)phosphonate
Synonyms: DIMETHYL (1-DIAZO-2-OXOPROPYL)PHOSPHONATE;Ohira-Bestmann reagent;1-Diazo-1-dimethoxyphosphoryl-propan-2-one;Dimethyl (acetyldiazomethyl)phosphonate;dimethyl 1-(1-diazo-2-oxopropyl)phosphonate;1-Diazoacetonylphosphonic Acid Dimethyl Ester;Dimethyl 1-Diazoacetonylphosphonate;Dimethyl (1-azoacetonyl)phosphonate;diMethyl(1-diazo-2-oxopropyl)phosphanate;Dimethyl (1-Diazo-2-oxopropyl)phosphonat
CBNumber: CB8489377
Molecular Formula: C5H9N2O4P
Formula Weight: 192.11
MOL File: 90965-06-3.mol

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Dimethyl (1-Diazo-2-oxopropyl)phosphonate Property

Density: 1.28
refractive index: n20/D1.352-1.354
Flash point:: 2℃
storage temp.: 2-8°C
solubility: Chloroform, Methanol (Slightly)
form: Oil
color: Pale Yellow to Yellow
Merck: 14,1177
BRN: 4247670
Stability:: Light Sensitive

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Safety

Hazard Codes: F,Xn
Risk Statements: 11-20/21/22-36
Safety Statements: 16-26-36/37
RIDADR: UN 1648 3 / PGII
WGK Germany: 3
HazardClass: 3
PackingGroup: II
HS Code: 29319090

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H319Causes serious eye irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

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

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

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

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 742724
Product name: Dimethyl (1-diazo-2-oxopropyl)phosphonate solution
Purity: ~10% in acetonitrile (H-NMR), ≥96% (HPLC)
Packaging: 10ml
Price: $487
Updated: 2024/03/01

TCI Chemical

Product number: D3546
Product name: Dimethyl (1-Diazo-2-oxopropyl)phosphonate
Purity: >97.0%(HPLC)
Packaging: 1g
Price: $218
Updated: 2024/03/01

TCI Chemical

Product number: D3546
Product name: Dimethyl (1-Diazo-2-oxopropyl)phosphonate
Purity: >97.0%(HPLC)
Packaging: 5g
Price: $696
Updated: 2024/03/01

TCI Chemical

Product number: D5048
Product name: Dimethyl (1-Diazo-2-oxopropyl)phosphonate (10% in Acetonitrile)
Packaging: 5g
Price: $106
Updated: 2024/03/01

TCI Chemical

Product number: D5048
Product name: Dimethyl (1-Diazo-2-oxopropyl)phosphonate (10% in Acetonitrile)
Packaging: 25g
Price: $306
Updated: 2024/03/01

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Dimethyl (1-Diazo-2-oxopropyl)phosphonate Chemical Properties,Usage,Production

Description

Dimethyl (1-diazido-2-oxopropyl)phosphonate is a liquid-added organophosphorus flame retardant with good solubility with water, common organic solvents, and inorganic salts flame retardants, with excellent flame retardant properties, low price and low additive amount and other advantages.

Chemical Properties

Light yellow liquid

Application

Dimethyl (1-diazo-2-oxopropyl)phosphonate can be used as a reagent for the synthesis of:
Ethynyl compounds (alkynes) from aldehydes.
Isoquinoline and pyridine N-oxides by cyclization with oximes in the presence of Rh catalyst.
Dimethyl(diazomethyl)phosphonate through methanolysis, which is further employed as a reagent in the synthesis of enol ethers or alkynes.
Five-member heterocyclic scaffolds of pyrazoles, triazoles, and oxazoles via cycloaddition reaction and multicomponent reaction.

Uses

Reagent for transformation of aldehydes to terminal alkynes and ketones to methyl enol ethers.

Synthesis

Dissolve NaH (0.67 g, 60% w/w, 16.75 mmol) in benzene (45 mL) and dry THF (15 mL). Cool the mixture on ice. A solution of dimethyl (2-oxopropyl) phosphonate (15.3 mmol) in dry benzene (15 mL) was added. A white solid was formed. The reaction mixture was stirred at room temperature for 1 hour. To the mixture was added a solution of toluidic acid hydrazide (16.23 mmol) in dry benzene (7.5 mL). The mixture was stirred at room temperature overnight. The mixture was filtered with Hyflo. The mixture was concentrated in a vacuum to give dimethyl (1-diazido-2-oxopropyl)phosphonate.

Dimethyl (1-Diazo-2-oxopropyl)phosphonate Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from Dimethyl (1-Diazo-2-oxopropyl)phosphonate manufacturers

Career Henan Chemical Co

Product: (1-DIAZO-2-OXO-PROPYL)-PHOSPHONIC ACID DIMETHYL ESTER 90965-06-3
Price: US $1.00/kg
Min. Order: 1kg
Purity: as customer's need
Supply Ability: 1000kg
Release date: 2018-12-19

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90965-06-3

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C5H9N2O4P