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5-DIAZOMELDRUM'S ACID

5-DIAZOMELDRUM'S ACID Struktur
7270-63-5
CAS-Nr.
7270-63-5
Englisch Name:
5-DIAZOMELDRUM'S ACID
Synonyma:
5-DIAZO-2,2-DIMETHYL-1,3-DIOXANE-4,6-DIONE;AURORA KA-3831;Diazomeldrumsacid;5-DIAZOMELDRUM'S ACID;CYCL-ISOPROPYLIDENE DIAZOMALONATE;CYCLO-ISOPROPYLIDENE DIAZOMALONATE;CYCLIC-ISOPROPYLIDENE DIAZOMALONATE;2-Diazomalonic acid isopropylidene ester;2,2-Dimethyl-5-diazo-1,3-dioxane-4,6-dione;5-DIAZO-2,2-DIMETHYL-1,3-DIOXOLANE-4,6-DIONE
CBNumber:
CB1262092
Summenformel:
C6H8N2O4
Molgewicht:
172.14
MOL-Datei:
7270-63-5.mol

5-DIAZOMELDRUM'S ACID Eigenschaften

Schmelzpunkt:
95 °C
storage temp. 
Keep in dark place,Inert atmosphere,2-8°C
L?slichkeit
sol ether, dichloromethane, and acetonitrile.
Aggregatzustand
powder to crystal
Farbe
White to Orange to Green
CAS Datenbank
7270-63-5
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
RIDADR  1325
HS Code  2932.99.9090
HazardClass  4.1
PackingGroup  III
Bildanzeige (GHS) Flame (GHS02)
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H228 Entzündbarer Feststoff. Entzündbare Feststoffe Kategorie 1 Achtung
Warnung
P210, P240,P241, P280, P370+P378
Sicherheit
P210 Von Hitze, hei?en Oberfl?chen, Funken, offenen Flammen und anderen Zündquellenarten fernhalten. Nicht rauchen.
P240 Beh?lter und zu befüllende Anlage erden.
P241 Explosionsgeschützte [elektrische/Lüftungs-/ Beleuchtungs-/...] Ger?te verwenden.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

5-DIAZOMELDRUM'S ACID Chemische Eigenschaften,Einsatz,Produktion Methoden

Verwenden

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

synthetische

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.

Lager

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 Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


5-DIAZOMELDRUM'S ACID Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 46)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Alchem Pharmtech,Inc.
8485655694
sales@alchempharmtech.com United States 63687 58
Dayang Chem (Hangzhou) Co.,Ltd.
+86-0571-88938639 +8617705817739
info@dycnchem.com China 52704 58
GIHI CHEMICALS CO.,LIMITED
+86-571-86217390; +8618058761490
info@gihichemicals.com China 49952 58
Aladdin Scientific

tp@aladdinsci.com United States 52923 58
Suzhou ARTK Medchem Co., Ltd.
+8618118463618
sales1@artkmedchem.com China 39021 58
Amadis Chemical Company Limited
571-89925085
sales@amadischem.com China 131956 58
J & K SCIENTIFIC LTD. 18210857532; 18210857532
jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109
market03@meryer.com China 40228 62
TCI (Shanghai) Development Co., Ltd. 021-67121386
Sales-CN@TCIchemicals.com China 24529 81
Energy Chemical 021-021-58432009 400-005-6266
sales8178@energy-chemical.com China 44816 61

7270-63-5()Verwandte Suche:


  • 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-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 >
  • 1,3-Dioxane-4,6-dione, 5-diazo-2,2-dimethyl-
  • 5-DIAZO-2,2-DIMETHYL-1,3-DIOXANE-4,6-DIONE
  • 7270-63-5
  • Dioxanes
  • Dioxanes & Dioxolanes
  • Dioxanes
  • Dioxanes & Dioxolanes
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