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CAS No.: | 759-05-7 |
---|---|
Name: | 3-METHYL-2-OXOBUTYRIC ACIDDISCONTINUED |
Article Data: | 103 |
Molecular Structure: | |
Formula: | C5H8O3 |
Molecular Weight: | 116.117 |
Synonyms: | Butyricacid, 3-methyl-2-oxo- (8CI);2-Ketoisovaleric acid;2-Oxo-3-methylbutanoicacid;2-Oxo-3-methylbutyric acid;2-Oxoisovaleric acid;2-keto-3-Methylbutyricacid;3-Methyl-2-oxobutanoate;3-Methyl-2-oxobutanoic acid;3-Methyl-2-oxobutyrate;3-Methyl-2-oxobutyric acid;Dimethylpyruvic acid;Isopropylglyoxylic acid;Ketovaline;a-Ketoisovaleric acid;a-Oxo-b-methylbutyric acid;a-Oxoisovaleric acid;a-keto-Isovaleric acid;a-keto-b-Methylbutyric acid; |
EINECS: | 212-065-4 |
Density: | 1.125 g/cm3 |
Melting Point: | 31.5℃ |
Boiling Point: | 170.2 °C at 760 mmHg |
Flash Point: | 71 °C |
Solubility: | 400.6g/L(20 oC) |
PSA: | 54.37000 |
LogP: | 0.29610 |
ethyl 3-methyl-2-oxobutanoate
3-methyl-2-ketobutanoic acid
Conditions | Yield |
---|---|
With water; lithium hydroxide at 0 - 25℃; for 1h; Inert atmosphere; | 95% |
With sodium hydroxide In water at 0 - 23℃; for 0.666667h; | 62% |
With potassium hydroxide |
Conditions | Yield |
---|---|
With sodium hydroxide In tetrahydrofuran for 0.5h; Ambient temperature; | 95% |
2,5-dihydro-4-(1-methylethyl)-2-(3-oxocyclohexyl)-oxazol-5-one
A
3-methyl-2-ketobutanoic acid
B
3-oxocyclohexanecarbaldehyde
Conditions | Yield |
---|---|
With hydrogenchloride In tetrahydrofuran Ambient temperature; | A n/a B 84% |
methyl 2,5-dihydro-4-(1-methylethyl)-γ,5-dioxo-2-oxazol-undecanoate
A
3-methyl-2-ketobutanoic acid
B
11-formyl-9-oxo-undecanoic acid methyl ester
Conditions | Yield |
---|---|
With hydrogenchloride In tetrahydrofuran Ambient temperature; | A n/a B 80% |
2,5-dihydro-4-(1-methylethyl)-5-oxo-2-(3-oxobutyl)-oxazol-5-one
A
4-oxopentanal
B
3-methyl-2-ketobutanoic acid
Conditions | Yield |
---|---|
With hydrogenchloride In tetrahydrofuran Ambient temperature; | A 76% B n/a |
methyl 2,5-dihydro-4-(1-methylethyl)-5-oxo-2-oxazol-propionate
A
3-methyl-2-ketobutanoic acid
B
4-oxobutanoic acid methyl ester
Conditions | Yield |
---|---|
With hydrogenchloride In tetrahydrofuran Ambient temperature; | A n/a B 72% |
2,5-dihydro-4-(1-methylethyl)-2-(3-oxocyclopentyl)-oxazol-5-one
A
3-methyl-2-ketobutanoic acid
B
3-formylcyclopentanone
Conditions | Yield |
---|---|
With hydrogenchloride In tetrahydrofuran Ambient temperature; | A n/a B 70% |
Conditions | Yield |
---|---|
With water; sodium hydroxide at 20℃; for 12h; Inert atmosphere; | 69% |
2,5-dihydro-4-(1-methylethyl)-2-(2-nitroethyl)-oxazol-5-one
A
3-methyl-2-ketobutanoic acid
B
3-nitropropanaldehyde
Conditions | Yield |
---|---|
With hydrogenchloride In tetrahydrofuran Ambient temperature; | A n/a B 64% |
Conditions | Yield |
---|---|
With hydrogenchloride In tetrahydrofuran Ambient temperature; | A n/a B 59% |
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The Butanoic acid,3-methyl-2-oxo- is an organic compound with the formula C5H8O3. The IUPAC name of this chemical is 3-methyl-2-oxobutanoic acid. With the CAS registry number 759-05-7, it is also named as 2-Ketoisovaleric acid.
Physical properties about Butanoic acid,3-methyl-2-oxo- are: (1)ACD/LogP: -0.36; (2)ACD/LogD (pH 5.5): -3.23; (3)ACD/LogD (pH 7.4): -4.08; (4)ACD/BCF (pH 5.5): 1; (5)ACD/BCF (pH 7.4): 1; (6)ACD/KOC (pH 5.5): 1; (7)ACD/KOC (pH 7.4): 1; (8)#H bond acceptors: 3; (9)#H bond donors: 1; (10)#Freely Rotating Bonds: 2; (11)Polar Surface Area: 43.37 Å2; (12)Index of Refraction: 1.432; (13)Molar Refractivity: 26.76 cm3; (14)Molar Volume: 103.1 cm3; (15)Polarizability: 10.61×10-24cm3; (16)Surface Tension: 37.4 dyne/cm; (17)Density: 1.125 g/cm3; (18)Flash Point: 71 °C; (19)Enthalpy of Vaporization: 44.83 kJ/mol; (20)Boiling Point: 170.2 °C at 760 mmHg; (21)Vapour Pressure: 0.732 mmHg at 25°C.
Uses of Butanoic acid,3-methyl-2-oxo-: it can be used to produce valine at temperature of 20 °C. It will need reagent ammonium acetate, sodium cyanoborohydride and solvent methanol with reaction time of 46 hours. The yield is about 50%.
You can still convert the following datas into molecular structure:
(1)SMILES: O=C(C(=O)O)C(C)C
(2)InChI: InChI=1/C5H8O3/c1-3(2)4(6)5(7)8/h3H,1-2H3,(H,7,8)
(3)InChIKey: QHKABHOOEWYVLI-UHFFFAOYAY
(4)Std. InChI: InChI=1S/C5H8O3/c1-3(2)4(6)5(7)8/h3H,1-2H3,(H,7,8)
(5)Std. InChIKey: QHKABHOOEWYVLI-UHFFFAOYSA-N