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Ethyl carbazate, 97%, Thermo Scientific Chemicals

Product Code. 11441528
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Quantity:
50 g
250 g
1000 g
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Prepare 4-phenylurazole from ethyl carbazate and then oxidize the urazole with gaseous dinitrogen tetroxide to yield 4-phenyl-1,2,4-tri- azoline-3,5-dione la. Modification of the ethyl carbazate procedure in which analytically pure monoalkylhydrazine hydrochlorides were isolated in greater than 90% yield, starting from a ketone or aldehyde. Treatment of primary amines is with chloroamine or hydroxylamine-0-sulfonic acid and the condensation of a carbonyl compound with ethyl carbazate. The FeCl 3 -catalyzed reaction of ethyl carbazate (2 b) proceeded readily to give β-hydroxyester 3 b in better yield. A new one-pot neat synthesis of some 5-aryl-2,4-dihydro-3H-1,2,4-triazol-3-ones through cyclocondensation of ethyl carbazate with aryl nitriles catalyzed by DMAP as an efficient and basic nucleophilic catalyst is described.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Prepare 4-phenylurazole from ethyl carbazate and then oxidize the urazole with gaseous dinitrogen tetroxide to yield 4-phenyl-1,2,4-tri- azoline-3,5-dione la. Modification of the ethyl carbazate procedure in which analytically pure monoalkylhydrazine hydrochlorides were isolated in greater than 90% yield, starting from a ketone or aldehyde. Treatment of primary amines is with chloroamine or hydroxylamine-0-sulfonic acid and the condensation of a carbonyl compound with ethyl carbazate. The FeCl 3 -catalyzed reaction of ethyl carbazate (2 b) proceeded readily to give β-hydroxyester 3 b in better yield. A new one-pot neat synthesis of some 5-aryl-2,4-dihydro-3H-1,2,4-triazol-3-ones through cyclocondensation of ethyl carbazate with aryl nitriles catalyzed by DMAP as an efficient and basic nucleophilic catalyst is described.

Solubility
Very soluble in water.

Notes
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Store away from strong oxidizing agents.
TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 4114-31-2
Molecular Formula C3H8N2O2
Molecular Weight (g/mol) 104.109
MDL Number MFCD00007595
InChI Key VYSYZMNJHYOXGN-UHFFFAOYSA-N
Synonym ethyl carbazate, ethyl hydrazinecarboxylate, ethoxycarbohydrazide, hydrazinecarboxylic acid, ethyl ester, carbethoxyhydrazine, ethylcarbazate, ethyl carbazinate, carboethoxyhydrazine, monocarbethoxyhydrazine, n-carbethoxy hydrazine
PubChem CID 20064
IUPAC Name ethyl N-aminocarbamate
SMILES CCOC(=O)NN

Specifications

Melting Point 44°C to 47°C
Boiling Point 85°C to 86°C (7 mmHg)
Flash Point 86°C (186°F)
Quantity 50 g
UN Number UN2811
Beilstein 878265
Sensitivity Moisture sensitive
Solubility Information Very soluble in water.
Formula Weight 104.11
Percent Purity 97%
Chemical Name or Material Ethyl carbazate
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