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E22201

Sigma-Aldrich

Ethyl diazoacetate

contains ≥13 wt. % dichloromethane

Synonym(s):

DAAE

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About This Item

Linear Formula:
N=N=CHCOOC2H5
CAS Number:
Molecular Weight:
114.10
Beilstein:
107654
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

form

liquid

Quality Level

contains

≥13 wt. % dichloromethane

refractive index

n20/D 1.46 (lit.)

bp

140-141 °C/720 mmHg (lit.)

mp

−22 °C (lit.)

density

1.085 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

CCOC(=O)C=[N+]=[N-]

InChI

1S/C4H6N2O2/c1-2-8-4(7)3-6-5/h3H,2H2,1H3

InChI key

YVPJCJLMRRTDMQ-UHFFFAOYSA-N

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Application

Reagent for ruthenium-catalyzed asymmetric cyclopropanation of alkenes.

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Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2 - Flam. Liq. 3 - Self-react. E - Skin Irrit. 2

Storage Class Code

5.2 - Organic peroxides and self-reacting hazardous materials

WGK

WGK 3

Flash Point(F)

116.6 °F - closed cup

Flash Point(C)

47 °C - closed cup


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Lian-Biao Zhao et al.
The Journal of organic chemistry, 72(26), 10276-10278 (2007-11-29)
Copper-catalyzed [4 + 1] cycloaddition reaction of alpha,beta-acetylenic ketones with alpha-diazo esters offers an efficient, direct route to highly substituted furans. The reaction conditions and the scope of the process are examined, and a possible mechanism is proposed.
Barry M Trost et al.
Journal of the American Chemical Society, 131(5), 1674-1675 (2009-02-05)
Magnesium-catalyzed enantioselective aldol between ethyl diazoacetate and aromatic, aliphatic, and alpha,beta-unsaturated aldehydes affords alpha-diazo-beta-hydroxy-esters in high enantioselectivities. Aldol adducts resulting from this asymmetric transformation are versatile intermediates toward the synthesis of several ester containing chiral building blocks.
Marianne Lenes Rosenberg et al.
The Journal of organic chemistry, 76(8), 2465-2470 (2011-03-19)
The performance of recently reported highly cis-diastereoselective Rh(I) cyclopropanation catalysts has been significantly improved by a systematic study of different reaction parameters (catalyst activation, solvent, temperature, stoichiometry). The catalyst efficiency and diastereoselectivity were enhanced by changing the activating agent from
Ying Chen et al.
The Journal of organic chemistry, 69(7), 2431-2435 (2004-03-31)
Vitamin B(12) derivatives were found for the first time to be general and efficient catalysts for asymmetric cyclopropanation of alkenes with ethyl diazoacetate (EDA). Among several common derivatives, aquocobalamin (B(12a)) was shown to be the most effective catalyst for a
Eva M Reingruber et al.
Journal of chromatography. A, 1255, 259-266 (2012-03-31)
Polymers, especially copolymers, are highly complex samples and, therefore, require various setups for their thorough characterization. In this work, one- and two-dimensional chromatographic approaches were applied to characterize two homopolymers and two dissimilar copolymers prepared by rhodium-mediated carbene polymerization using

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