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97-72-3 - Isobutyric anhydride, 97% - 2-Methylpropionic anhydride - L13240 - Alfa Aesar

L13240 Isobutyric anhydride, 97%

CAS Number
97-72-3
Synonyms
2-Methylpropionic anhydride

Size Price ($) Quantity Availability
100ml 18.09
500ml 32.76
2500ml 105.06
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Isobutyric anhydride, 97%

MDL
MFCD00008913
EINECS
202-603-6

Chemical Properties

Formula
[(CH3)2CHCO]2O
Formula Weight
158.20
Melting point
-56°
Boiling Point
182°
Flash Point
67°(152°F)
Density
0.954
Refractive Index
1.4060
Sensitivity
Moisture Sensitive
Solubility
Miscible with water and ether.

Applications

Isobutyric anhydride is used in the preparation of 4-O-isobutyryl derivative by reacting with octyl beta-D-glucopyranoside using C<sub>2</sub>-symmetric chiral 4-pyrrolidinopyridine as a catalyst. It acts as a starting material for esters like sucrose acetate isobutyrate, dyes and agrochemicals. It finds application as fragrance intermediate and flavorings.

Notes

Moisture sensitive. Incompatible with strong oxidizing agents and strong bases.

Literature References

Lamers, P.; Priebbenow, D. L.; Bolm, C. Iron-Catalyzed Acylative Dealkylation of N-Alkylsulfoximines. Eur. J. Org. Chem. 2015, 2015 (25), 5594-5602.

Qi, X.; Jiang, L. B.; Li, C. L.; Li, R.; Wu, X. F. Palladium-Catalyzed One-Pot Carbonylative Sonogashira Reaction Employing Formic acid as the CO Source. Chem. Asian J. 2015, 10 (9), 1870-1873.

GHS Hazard and Precautionary Statements

Hazard Statements: H314-H318-H302-H312-H227

Causes severe skin burns and eye damage. Causes serious eye damage. Harmful if swallowed. Harmful in contact with skin. Combustible liquid.

Precautionary Statements: P210-P260-P280-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Do not breathe dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/physician. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Beilstein
386267
Hazard Class
8
Packing Group
II
Harmonized Tariff Code
2915.60
TSCA
Yes

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