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245771

Sigma-Aldrich

Isobutyric anhydride

97%

Sinonimo/i:

2-Methylpropionic anhydride

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About This Item

Formula condensata:
(CH3)2CHCO2COCH(CH3)2
Numero CAS:
97-72-3
Peso molecolare:
158.19
Beilstein:
386267
Numero CE:
202-603-6
Numero MDL:
MFCD00008913
Codice UNSPSC:
12352100
ID PubChem:
24854757
NACRES:
NA.22

Densità del vapore

5.45 (vs air)

Tensione di vapore

10 mmHg ( 67 °C)

Saggio

97%

Forma fisica

liquid

Temp. autoaccensione

624 °F

Limite di esplosione

1.09 %, 87 °F
7.7 %, 127 °F

Indice di rifrazione

n20/D 1.406 (lit.)

P. eboll.

182 °C (lit.)

Punto di fusione

−56 °C (lit.)

Densità

0.954 g/mL at 25 °C (lit.)

Stringa SMILE

CC(C)C(=O)OC(=O)C(C)C

InChI

1S/C8H14O3/c1-5(2)7(9)11-8(10)6(3)4/h5-6H,1-4H3
LSACYLWPPQLVSM-UHFFFAOYSA-N

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Categorie correlate

Descrizione generale

The mechanism of esterification of 1-(1-naphthyl)ethanol by isobutyric anhydride with 4-pyrrolidinopyridine as catalyst was studied.

Applicazioni

Isobutyric anhydride was used in the synthesis of 4-O-isobutyryl derivative via reaction with octyl β-D-glucopyranoside in the presence of C2-symmetric chiral 4-pyrrolidinopyridine as a catalyst.

Pittogrammi

Skull and crossbonesCorrosion
GHS06,GHS05

Avvertenze

Danger

Indicazioni di pericolo

H301 + H311,H314

Classi di pericolo

Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Skin Corr. 1B

Codice della classe di stoccaggio

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

154.4 °F - closed cup

Punto d’infiammabilità (°C)

68 °C - closed cup

Dispositivi di protezione individuale

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Certificati d'analisi (COA)

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Evgeny Larionov et al.
Journal of the American Chemical Society, 134(22), 9390-9399 (2012-05-10)
The mechanism of esterification of the secondary alcohol 1-(1-naphthyl)ethanol 9 by isobutyric anhydride catalyzed by 4-pyrrolidinopyridine (PPY, 11) and a series of single enantiomer atropisomeric 4-dialkylaminopyridines 8a-g has been studied computationally at the B3LYP/6-311+G(d,p)//B3LYP/6-31G(d) level. Comparison of the levels of
Takeo Kawabata et al.
Journal of the American Chemical Society, 129(42), 12890-12895 (2007-10-02)
An organocatalytic method for the chemo- and regioselective acylation of monosaccharides has been developed. Treatment of octyl beta-D-glucopyranoside with isobutyric anhydride in the presence of 10 mol % of a C2-symmetric chiral 4-pyrrolidinopyridine catalyst (1) at -50 degrees C gave
Bin Wang et al.
Chemistry, an Asian journal, 10(8), 1690-1697 (2015-06-03)
Hyperbranched polyethylenimine terminated with isobutyramide groups (HPEI-IBAm), 4-(phenylazo)benzoic acid (PABA), and α-cyclodextrin (α-CD) were assembled together at pH≈7 to form the three-component supramolecular complexes that were verified by (1) H and 2D ROESY (1) H NMR spectroscopy. UV/Vis spectrometric titration experiments
Xiaoning Shan et al.
International journal of pharmaceutics, 590, 119884-119884 (2020-09-21)
Poly(2-methyl-2-oxazoline) (PMOZ), poly(2-propyl-2-oxazoline) (PnPOZ) and poly(2-isopropyl-2-oxazoline) (PiPOZ) were synthesized by hydrolysis of 50 kDa poly(2-ethyl-2-oxazoline) (PEOZ) and subsequent reaction of the resulting poly(ethylene imine) with acetic, butyric and isobutyric anhydrides, respectively. These polymers were characterized by proton nuclear magnetic resonance, FTIR

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