Chemistry:Diisopropyl azodicarboxylate

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Diisopropyl azodicarboxylate
Diisopropyl azodicarboxylate
Diisopropyl azodicarboxylate-3d.png
Names
IUPAC name
Diisopropyl azodicarboxylate
Other names
DIAD
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 219-502-8
UNII
Properties
C8H14N2O4
Molar mass 202.210 g·mol−1
Appearance Orange liquid
Density 1.027 g/cm3
Melting point 3 to 5 °C (37 to 41 °F; 276 to 278 K)
Boiling point 75 °C (167 °F; 348 K) at 0.25 mmHg
insoluble
1.418-1.422
Hazards
Safety data sheet Sigma-Aldrich
GHS pictograms GHS07: HarmfulGHS08: Health hazardGHS09: Environmental hazard
GHS Signal word Warning
H315, H319, H335, H373, H411
P260, P261, P264, P271, P273, P280, P302+352, P304+340, P305+351+338, P312, P314, P321, P332+313, P337+313, P362, P391, P403+233, P405, P501
Flash point 106 °C (223 °F; 379 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Diisopropyl azodicarboxylate (DIAD) is the diisopropyl ester of azodicarboxylic acid. It is used as a reagent in the production of many organic compounds. It is often used in the Mitsunobu reaction,[1] where it serves as an oxidizer of triphenylphosphine to triphenylphosphine oxide. It has also been used to generate aza-Baylis-Hillman adducts with acrylates.[2] It can also serve as a selective deprotectant of N-benzyl groups in the presence of other protecting groups.[3]

It is sometimes preferred to diethyl azodicarboxylate (DEAD) because it is more hindered, and thus less likely to form hydrazide byproducts.

One notable use of this compound is in the synthesis of Bifenazate (Floramite®).[citation needed]

References

  1. "luka DIAD on Sigma-Aldrich". https://www.sigmaaldrich.com/catalog/search/ProductDetail/FLUKA/11626. Retrieved 2008-11-18. 
  2. Shi, Min; Zhao, Gui-Ling (2004). "Aza-Baylis–Hillman reactions of diisopropyl azodicarboxylate or diethyl azodicarboxylate with acrylates and acrylonitrile". Tetrahedron 60 (9): 2083–2089. doi:10.1016/j.tet.2003.12.059. 
  3. Kroutil, J.; Trnka, T.; Cerny, M. (2004). "Improved procedure for the selective N-debenzylation of benzylamines by diisopropyl azodicarboxylate". Synthesis 3 (3): 446–450. doi:10.1055/s-2004-815937.