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M33476

Sigma-Aldrich

2-Methylbutyraldehyde

95%

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Synonym(s):
α-Methyl-n-butanal, α-Methylbutanal, α-Methylbutyric aldehyde, (±)-2-Methylbutanal, 2-Ethylpropanal, 2-Formylbutane, 2-Methylbutanal
Linear Formula:
C2H5CH(CH3)CHO
CAS Number:
96-17-3
Molecular Weight:
86.13
Beilstein:
1633540
EC Number:
202-485-6
MDL number:
MFCD00006984
UNSPSC Code:
12352100
PubChem Substance ID:
24896832
NACRES:
NA.22

Quality Level

100

Assay

95%

form

liquid

refractive index

n20/D 1.3919 (lit.)

bp

90-92 °C (lit.)

density

0.806 g/mL at 20 °C
0.804 g/mL at 25 °C (lit.)

SMILES string

[H]C(=O)C(C)CC

InChI

1S/C5H10O/c1-3-5(2)4-6/h4-5H,3H2,1-2H3

InChI key

BYGQBDHUGHBGMD-UHFFFAOYSA-N

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Application

2-Methylbutyraldehyde can be used as a reactant to synthesize:
  • 2-amino-3-cyanopyridine derivatives via multicomponent condensation with various acetophenones and malononitrile in the presence of ammonium acetate.
  • N,N-Diethyl-2-methyl-1-butanamine by reacting with diethylamine via Rh-catalyzed reductive amination reaction in the presence of molecular hydrogen.
  • α-(2-Methylbutylidene)benzeneacetonitrile by condensation reaction with benzyl cyanide using tricyclic strong nonionic Lewis bases.

Signal Word

Danger

Hazard Statements

H225,H317,H319,H335,H411

Hazard Classifications

Aquatic Chronic 2 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

WGK

WGK 2

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

Certificates of Analysis (COA)

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Shintani T, et al.
Tetrahedron Letters, 44(35), 6567-6569 (2003)
Direct synthesis of α ,β-unsaturated nitriles catalyzed by nonionic superbases
D'Sa Bosco A, et al.
The Journal of Organic Chemistry, 63(12), 3961-3967 (1998)
Rhodium-Catalysed Reductive Amination for the Synthesis of Tertiary Amines
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