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Sigma-Aldrich

Diisopropyl azodicarboxylate

98%

Synonym(s):

DIAD, Diisopropyl azodiformate

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About This Item

Linear Formula:
(CH3)2CHOOCN=NCOOCH(CH3)2
CAS Number:
2446-83-5
Molecular Weight:
202.21
Beilstein:
1912326
MDL number:
MFCD00008875
UNSPSC Code:
12352302
PubChem Substance ID:
24853505
NACRES:
NA.22

Quality Level

200

Assay

98%

form

liquid

impurities

≤2% dichloromethane

refractive index

n20/D 1.420 (lit.)

bp

75 °C/0.25 mmHg (lit.)

density

1.027 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

CC(C)OC(=O)\N=N\C(=O)OC(C)C

InChI

1S/C8H14N2O4/c1-5(2)13-7(11)9-10-8(12)14-6(3)4/h5-6H,1-4H3/b10-9+

InChI key

VVWRJUBEIPHGQF-MDZDMXLPSA-N

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General description

Reacted with dioxaphosphorinanes and iron catalyst to generate rearranged phosphonium ylide products.

Application

Diisopropyl azodicarboxylate (DIAD) is a commonly used reagent in organic synthesis for the preparation of useful chemical intermediates. It is often used in the Mitsunobu and aza-Baylis-Hillman reaction. DIAD is also used as a selective deprotecting agent of N-benzyl groups.
Reactant for preparation of:
  • Chromenes resembling classical cannabinoids
  • MK-3281 inhibitor of the hepatitis C virus NS5B polymerase
  • Norbornene-based guanidine-rich polymers as mimcs of cell-penetrating peptides (CPP)
  • Analogues of the Pseudomonas aeruginosa quorum-sensing molecule N-(3-Oxododecanoyl)-l-homoserine lactone with immunosuppressive but non-LasR-inducing properties
  • Acceptor-donor-acceptor organic dyes for dye-sensitized solar cells
  • 1,3-dioxane-2-carboxylic acid derivatives as PPARα/γ dual agonists
  • Hydrazinophosphonates and hydrazinobisphosphonates via Mitsunobu and Arbuzov-type multicomponent application of the Morrison-Brunn-Huisgen betaine

Signal Word

Warning

Hazard Statements

H315,H319,H335,H351,H411

Hazard Classifications

Aquatic Chronic 2 - Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

222.8 °F

Flash Point(C)

106 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Marcelle L Ferguson et al.
Journal of the American Chemical Society, 128(14), 4576-4577 (2006-04-06)
Allylic phosphonium ylides are readily generated by the combination of an allylic alcohol, a carbene, and a chlorophosphite. Here we demonstrate that these intermediates undergo a thermal [3,3]-rearrangement to provide single isomers of homoallylic phosphonates in good to excellent yields.
Zhi-Huang Qiu et al.
The Annals of thoracic surgery, 110(3), 925-932 (2020-01-29)
The efficacy of hemiarch replacement combined with a modified triple-branched stent graft in Debakey type I aortic dissection remains to be confirmed. From January 2016 to December 2017, 167 patients with acute Debakey type I aortic dissection underwent hemiarch replacement
Regina Kelmansky et al.
Acta biomaterialia, 53, 93-99 (2017-02-13)
Many bio-adhesive materials adhere weakly to tissue due to their high water content and weak structural integrity. Others provide desirable adhesive strength but suffer from rigid structure and lack of elasticity after administration. We have developed two water-free, liquid four-armed
J Miles Blackburn et al.
Organic letters, 19(21), 6012-6015 (2017-10-20)
A general approach to access sulfamate esters through preparation of sulfamic acid salts, subsequent activation with triphenylphosphine ditriflate, and nucleophilic trapping is disclosed. The method proceeds in modest to excellent yields to incorporate nucleophiles derived from aliphatic alcohols and phenols.
Jorge J Llibre-Guerra et al.
JAMA network open, 2(12), e1917126-e1917126 (2019-12-12)
The amyloid/tau/neurodegeneration (A/T/N) framework uses cerebrospinal fluid (CSF) levels of total tau (tTau) as a marker of neurodegeneration and CSF levels of phosphorylated tau 181 (pTau181) as a marker of tau tangles. However, it is unclear whether CSF levels of
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