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CAS No.: | 56970-78-6 |
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Name: | 3-BROMO-2-METHYLPROPIONIC ACID |
Article Data: | 12 |
Molecular Structure: | |
Formula: | C4H7 Br O2 |
Molecular Weight: | 167.002 |
Synonyms: | Propionicacid, 3-bromo-2-methyl- (6CI,7CI); (?à)-3-Bromo-2-methylpropionic acid;3-Bromo-2-methylpropionic acid; NSC 201472; b-Bromoisobutanoic acid |
Density: | 1.625g/cm3 |
Melting Point: | 173 °C (decomp) |
Boiling Point: | 230.5°Cat760mmHg |
Flash Point: | 93.2°C |
PSA: | 37.30000 |
LogP: | 1.10200 |
poly(methacrylic acid)
3-bromo-2-methylpropionic acid
Conditions | Yield |
---|---|
With bromine; acetic acid | 91% |
With hydrogen bromide In water at 60 - 65℃; Inert atmosphere; | 87.2% |
With hydrogen bromide at 20℃; for 2h; | 70% |
3-bromo-2-methyl-propionic acid methyl ester
3-bromo-2-methylpropionic acid
Conditions | Yield |
---|---|
With bis(tri-n-butyltin)oxide In toluene at 111℃; for 48h; | 60% |
3-bromo-2-methylpropionic acid
2-methyl-3-sulfanylpropanoic acid
Conditions | Yield |
---|---|
With copper(l) iodide; sodium hydrogensulfide; tetrabutylammomium bromide In water at 65 - 75℃; Reagent/catalyst; Solvent; Inert atmosphere; | 92.6% |
With sodium sulfide; water; sodium carbonate |
3-bromo-2-methylpropionic acid
4-amino-2-trifluoromethylbenzonitrile
Conditions | Yield |
---|---|
With thionyl chloride; trimethylamine | 91% |
Stage #1: 3-bromo-2-methylpropionic acid With thionyl chloride In tetrahydrofuran for 2h; Inert atmosphere; Stage #2: 4-amino-2-trifluoromethylbenzonitrile With triethylamine In tetrahydrofuran at 50℃; for 2h; Inert atmosphere; |
methanol
3-bromo-2-methylpropionic acid
3-bromo-2-methyl-propionic acid methyl ester
Conditions | Yield |
---|---|
With sulfuric acid | 90% |
3-bromo-2-methylpropionic acid
3-bromo-2-methylpropanoyl chloride
Conditions | Yield |
---|---|
With thionyl chloride for 4h; Heating; | 77% |
With thionyl chloride | |
With thionyl chloride |
3-bromo-2-methylpropionic acid
3-bromo-1,1,1-trifluoro-2-methylpropane
Conditions | Yield |
---|---|
With sulfur tetrafluoride; water for 24h; Autoclave; | 60% |
3-bromo-2-methylpropionic acid
α-methyl-β-propiolactone
Conditions | Yield |
---|---|
With sodium hydroxide In chloroform for 2h; Cyclization; | 42% |
Conditions | Yield |
---|---|
Stage #1: 3-bromo-2-methylpropionic acid With sodium carbonate In ethanol; water at 1℃; for 20h; Stage #2: captamine In ethanol at 40℃; for 72h; Inert atmosphere; | 26% |
3-bromo-2-methylpropionic acid
Conditions | Yield |
---|---|
With sodium hydroxide; (32)S-hydrogen sulfide at 95℃; for 3h; | 14% |
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Molecular Structure:
Molecular Formula: C4H7BrO2
Molecular Weight: 167.0012
IUPAC Name: 3-Bromo-2-methylpropanoic acid
Synonyms of 3-Bromoisobutyric acid (CAS NO.56970-78-6): 3-Bromo-2-methylpropionic acid ; 2-Methyl-3-bromopropionic acid ; Methyl-3-bromopropionicacid ; 3-Bromo-2-methyl-propanoic acid
CAS NO: 56970-78-6
Index of Refraction: 1.492
Molar Refractivity: 29.83 cm3
Molar Volume: 102.7 cm3
Surface Tension: 42.6 dyne/cm
Density: 1.625 g/cm3
Flash Point: 93.2 °C
Enthalpy of Vaporization: 51.45 kJ/mol
Boiling Point: 230.5 °C at 760 mmHg
Vapour Pressure of 3-Bromoisobutyric acid (CAS NO.56970-78-6): 0.0233 mmHg at 25°C