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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:
623-73-4
Molecular Weight:
114.10
Beilstein:
107654
MDL number:
MFCD00001989
UNSPSC Code:
12352100
PubChem Substance ID:
24894459
NACRES:
NA.22
Pricing and availability is not currently available.

form

liquid

Quality Level

200

contains

≥13 wt. % dichloromethane

refractive index

n20/D 1.46 (lit.)

bp

140-141 °C/720 mmHg (lit.)

mp

−22 °C (lit.)

solubility

water: slightly soluble

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

New Diazoacetate Formulations
Reagent for ruthenium-catalyzed asymmetric cyclopropanation of alkenes.[1]

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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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Certificates of Analysis (COA)

Lot/Batch Number
MKCS4068
MKCT6861
MKCQ6362
MKCR6267
MKCR6269

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Pierre de Frémont et al.
Chemical communications (Cambridge, England), (19)(19), 2045-2047 (2006-06-13)
A number of cationic gold(I) complexes have been synthesized and found to be stabilized by the use of N-heterocyclic carbene ligands. These species are often employed as in situ-generated reactive intermediates in gold catalyzed organic transformations. An isolated, well-defined species
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
Palladium-catalyzed cross-coupling of aryl or vinyl iodides with ethyl diazoacetate.
Cheng Peng et al.
Journal of the American Chemical Society, 129(28), 8708-8709 (2007-06-26)
Detian Gao et al.
The Journal of organic chemistry, 73(20), 8057-8068 (2008-09-19)
Several representative acetylenic sulfones were immobilized on a polymer support derived from Merrifield resin by means of ester linkers that were used to couple free carboxylic acid groups on the solid support with benzylic hydroxyl functions on the arylsulfonyl moieties
Chan Pil Park et al.
The Journal of organic chemistry, 74(16), 6231-6236 (2009-07-28)
Formal aromatic C-H insertion of rhodium(II) carbenoid was intensively investigated to develop a new methodology and probe its mechanism. Contrasting with the previously proposed direct C-H insertion, the mechanism was revealed to be electrophilic aromatic substitution, which was supported by
View All Related Papers

Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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