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

L13240 Isobutyric anhydride, 97%

CAS-Nummer
97-72-3
Synonyme
2-Methylpropionic anhydride

Größe Preis ($) Menge Verfügbarkeit
100ml 18,09
500ml 32,76
2500ml 105,06
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Isobutyric anhydride, 97%

MDL
MFCD00008913
EINECS
202-603-6

Chemische Eigenschaften

Formel
[(CH3)2CHCO]2O
Molmasse
158.20
Schmelzpunkt
-56°
Siedepunkt
182°
Flammpunkt
67°(152°F)
Dichte
0.954
Brechungsindex
1.4060
Sensitivität
Moisture Sensitive
Löslichkeit
Miscible with water and ether.

Anwendungen

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.

Bemerkungen

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

Literaturverweise

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 Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): 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.

Sicherheitshinweise: 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.

Weitere Referenzen

Beilstein
386267
Gefahrenklasse
8
Verpackungsgruppe
II
Harmonized Tariff Code
2915.60
TSCA
Yes

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