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CAS No.: | 68837-59-2 |
---|---|
Name: | 4-Bromo-2-methylbenzoic acid |
Article Data: | 11 |
Molecular Structure: | |
Formula: | C8H7BrO2 |
Molecular Weight: | 215.046 |
Synonyms: | o-Toluicacid, 4-bromo- (6CI);2-Methyl-4-bromobenzoic acid;4-Bromo-o-toluic acid;NSC 243710; |
EINECS: | 272-437-7 |
Density: | 1.599 g/cm3 |
Melting Point: | 180-184 °C |
Boiling Point: | 310.1 °C at 760 mmHg |
Flash Point: | 141.3 °C |
Solubility: | Insoluble in water. |
Appearance: | White to off-white crystalline powder |
Hazard Symbols: | Xn,Xi |
Risk Codes: | 22-36/37/38 |
Safety: | 26-36/37/39-36 |
Transport Information: | UN 2811 6.1/PG 3 |
PSA: | 37.30000 |
LogP: | 2.45570 |
4-bromo-2-methylbenzonitrile
4-bromo-2-methylbenzoic acid
Conditions | Yield |
---|---|
With potassium hydroxide In water Reflux; | 60% |
With sulfuric acid; water | |
With sodium hydroxide | |
With sulfuric acid; acetic acid In water for 4.5h; Reflux; |
4-methyl-4-tribromomethylcyclohexa-2,5-dien-1-one
4-bromo-2-methylbenzoic acid
Conditions | Yield |
---|---|
With phosphorus pentabromide |
n-butyllithium
1,4-dibromo-2-methylbenzene
A
4-bromo-2-methylbenzoic acid
B
4-bromo-3-methylbenzoic acid
Conditions | Yield |
---|---|
at 20℃; anschliessend Behandlung mit CO2; |
4-bromo-2-methylbenzoic acid
Conditions | Yield |
---|---|
With hydrogen bromide; copper(I) bromide |
4-Bromobenzoic acid
2,2,6,6-tetramethylpiperidinyl-lithium
methyl iodide
A
4-bromo-2-methylbenzoic acid
B
4-bromo-2-ethylbenzoic acid
Conditions | Yield |
---|---|
Stage #1: 4-Bromobenzoic acid; 2,2,6,6-tetramethylpiperidinyl-lithium In tetrahydrofuran; hexane at -78℃; for 4h; Stage #2: methyl iodide In tetrahydrofuran; hexane at -78 - 20℃; | A 12 % Spectr. B 22 % Spectr. C 15 % Spectr. D 12 % Spectr. |
4-Bromo-2-methylaniline
4-bromo-2-methylbenzoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: durch Austausch von NH2 gegen CN 2: alcoholic NaOH-solution View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: AlBr3 / CS2 2: PBr5 View Scheme |
methanol
4-bromo-2-methylbenzoic acid
4-bromo-2-methyl-benzoic acid methyl ester
Conditions | Yield |
---|---|
With hydrogenchloride for 6h; Heating / reflux; | 100% |
With thionyl chloride at 70℃; for 6h; | 100% |
With thionyl chloride at 0℃; Inert atmosphere; Reflux; | 100% |
4-bromo-2-methylbenzoic acid
4-bromo-2-methylbenzoyl chloride
Conditions | Yield |
---|---|
With oxalyl dichloride; N,N-dimethyl-formamide In dichloromethane at 20℃; for 9h; | 100% |
With thionyl chloride In toluene for 15h; Reflux; | 92% |
With oxalyl dichloride; N,N-dimethyl-formamide In dichloromethane for 0.5h; Cooling with ice; | 89% |
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IUPAC Name: 4-Bromo-2-methylbenzoic acid
Molecular Formula: C8H7BrO2
Molecular Weight: 215.044g/mol
EINECS: 272-437-7
Melting Point: 180-184 ºC
Freely Rotating Bonds: 1
Polar Surface Area: 26.3 Å2
Index of Refraction: 1.595
Molar Refractivity: 45.69 cm3
Molar Volume: 134.4 cm3
Polarizability: 18.11 ×10-24cm3
Surface Tension: 50 dyne/cm
Density: 1.599 g/cm3
Flash Point: 141.3 °C
Enthalpy of Vaporization: 58.17 kJ/mol
Boiling Point: 310.1 °C at 760 mmHg
Vapour Pressure: 0.000264 mmHg at 25°C
The Cas Register Number of 4-Bromo-2-methylbenzoic acid is 68837-59-2 .The chemical synonyms of 4-Bromo-2-methylbenzoic acid (CAS No. 68837-59-2) are Rarechem al bo 0455 ; 2-Methyl-4-bromobenzoic acid ; 4-Bromo-2-methylbenzoic acid ; 4-Bromo-o-toluic acid ; 4-Bromo-2-methylbenzoic acid 2-methyl-4-bromobenzoic acid ; 4-Bromo-2-methylbenzoic acid, 98+% .Product categories of 4-Bromo-2-methylbenzoic acid (CAS No. 68837-59-2) are Aromatic carboxylic acids, amides, anilides, anhydrides & salts ; Benzoic acid ; C8 ; Carbonyl compounds ; Carboxylic acids .The molecular structure of 4-Bromo-2-methylbenzoic acid (CAS No. 68837-59-2) is.
Hazard Codes: Xn Xi
Risk Statements: 22-36/37/38
R22: Harmful if swallowed.
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36/37/39-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.
S36: Wear suitable protective clothing.
RIDADR: UN 2811 6.1/PG 3
WGK Germany: 3
The extinguishing agent of 4-Bromo-2-methylbenzoic acid (CAS No. 68837-59-2) are dry powder, foam, sand, carbon dioxide, water mist.