5-DIAZOMELDRUM'S ACID

Product Name: 5-DIAZOMELDRUM'S ACID
CAS No.: 7270-63-5
Chemical Name: 5-DIAZOMELDRUM'S ACID
Synonyms: AURORA KA-3831;Diazomeldrumsacid;5-DIAZOMELDRUM'S ACID;CYCL-ISOPROPYLIDENE DIAZOMALONATE;CYCLO-ISOPROPYLIDENE DIAZOMALONATE;CYCLIC-ISOPROPYLIDENE DIAZOMALONATE;2-Diazomalonic acid isopropylidene ester;5-DIAZO-2,2-DIMETHYL-1,3-DIOXANE-4,6-DIONE;2,2-Dimethyl-5-diazo-1,3-dioxane-4,6-dione;5-DIAZO-2,2-DIMETHYL-1,3-DIOXOLANE-4,6-DIONE
CBNumber: CB1262092
Molecular Formula: C6H8N2O4
Formula Weight: 172.14
MOL File: 7270-63-5.mol

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5-DIAZOMELDRUM'S ACID Property

Melting point:: 95 °C
storage temp.: Keep in dark place,Inert atmosphere,2-8°C
solubility: sol ether, dichloromethane, and acetonitrile.
form: powder to crystal
color: White to Orange to Green
CAS DataBase Reference: 7270-63-5

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Safety

RIDADR: 1325
HS Code: 2932.99.9090
HazardClass: 4.1
PackingGroup: III

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H228Flammable solid

Precautionary statements

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

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

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

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N-Bromosuccinimide Price

TCI Chemical

Product number: D1718
Product name: 5-Diazo-2,2-dimethyl-1,3-dioxane-4,6-dione
Purity: >98.0%(HPLC)
Packaging: 5g
Price: $256
Updated: 2025/07/31

TRC

Product number: D492998
Product name: 5-Diazomeldrum’sAcid
Packaging: 500mg
Price: $155
Updated: 2021/12/16

TRC

Product number: D492998
Product name: 5-Diazomeldrum’sAcid
Packaging: 50mg
Price: $45
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: CHM0012658
Product name: 5-DIAZOMELDRUM'S ACID
Purity: 95.00%
Packaging: 5G
Price: $964.14
Updated: 2021/12/16

AK Scientific

Product number: 1279AC
Product name: 5-Diazo-2,2-dimethyl-1,3-dioxane-4,6-dione
Packaging: 5g
Price: $412
Updated: 2021/12/16

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5-DIAZOMELDRUM'S ACID Chemical Properties,Usage,Production

Uses

5-Diazomeldrum's acid is a reagent useful in the synthesis of α-oxyketenes and in [2 + 2] cycloaddition reactions with olefins.

Preparation

Most commonly by diazo transfer to Meldrum's acid. A number of procedures involving the use of sulfonyl azide reagents have been reported.Typical procedures involve the addition of the sulfonyl azide to a solution of Meldrum's acid containing a tertiary amine base. Aqueous workup followed by chromatography on silica gel provide the diazo compound in yields ranging from 40 to 76%. A modification using KF on alumina is reported to provide a 90% yield of 5-Diazomeldrum's acid. Diazo compounds are potentially explosive as are certain sulfonyl azides, such as tosyl azide. For this reason, extreme care must be observed in the synthesis and use of this compound, with all operations being conducted behind a blast shield in a fume hood.

storage

In addition to the previously mentioned explosion hazard which this reagent presents, there are health related hazards that must also be considered. Diazo compounds, as a class, are toxic and irritating and can be sensitizers. They must be used in a well-ventilated fume hood and not come in contact with skin. For a description of the hazards associated with this class of compounds, see the handling and storage precautions listed for Diazomethane.

5-DIAZOMELDRUM'S ACID Preparation Products And Raw materials

Raw materials

Preparation Products

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5-DIAZOMELDRUM'S ACID Suppliers

Americas 1 Austria 1 China 21 Europe 1 France 1 Germany 3 India 2 Japan 1 United Kingdom 5 United States 10 Global 46

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7270-63-5, 5-DIAZOMELDRUM'S ACIDRelated Search:

4-(2-PYRIDYLAZO)RESORCINOL 5-DIAZOMELDRUM'S ACID 2,2-Dimethyl-1,3-dioxane-4,6-dione

AURORA KA-3831

DIAZOMALONIC ACID CYCLIC ISOPROPYLIDENE ESTER

DIAZOMALONIC ACID CYCLIC ISOPROPYLIDINE ESTER

CYCLO-ISOPROPYLIDENE DIAZOMALONATE

CYCLIC-ISOPROPYLIDENE DIAZOMALONATE

CYCL-ISOPROPYLIDENE DIAZOMALONATE

5-Diazomeldrum's Acid Diazomalonic Acid Cyclic Isopropylidine Ester cycl-Isopropylidene Diazomalonate

5-DIAZO-2,2-DIMETHYL-1,3-DIOXANE-4,6-DIONE

5-DIAZO-2,2-DIMETHYL-1,3-DIOXOLANE-4,6-DIONE

5-DIAZOMELDRUM'S ACID

5-Diazomeldrums acid (=5-Diazo-2,2-dimethyl-1,3-dioxolane-4,6-dione)

Diazomeldrumsacid

5-diazomeldrum'sacid(=5-diazo-2,2-dimethyl-1,3-dioxane-4,6-dione)

2,2-Dimethyl-5-diazo-1,3-dioxane-4,6-dione

2-Diazomalonic acid isopropylidene ester

5-diazonio-2,2-dimethyl-6-oxo-1,3-dioxin-4-olate

5-Diazo-2,2-dimethyl-1,3-dioxane-4,6-dione &gt

1,3-Dioxane-4,6-dione, 5-diazo-2,2-dimethyl-

7270-63-5

Dioxanes

Dioxanes & Dioxolanes

Dioxanes

Dioxanes & Dioxolanes