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CAS No.: | 1973-22-4 |
---|---|
Name: | 2-Bromoethylbenzene |
Article Data: | 44 |
Molecular Structure: | |
Formula: | C8H9Br |
Molecular Weight: | 185.063 |
Synonyms: | 2-Ethylbromobenzene;1-Bromo-2-ethylbenzene;1-Ethyl-2-bromobenzene;2-Bromo-1-ethylbenzene;o-Bromoethylbenzene;o-Ethylbromobenzene; |
EINECS: | 217-823-8 |
Density: | 1.336 g/cm3 |
Melting Point: | -56 °C |
Boiling Point: | 199.9 °C at 760 mmHg |
Flash Point: | 66.4 °C |
Appearance: | Clear colourless to light yellow liquid |
Hazard Symbols: | Xi, N, O |
Risk Codes: | 36/37/38-51/53 |
Safety: | 26-61-24/25 |
Transport Information: | UN 3082 9/PG 3 |
PSA: | 0.00000 |
LogP: | 3.01150 |
Conditions | Yield |
---|---|
With methanol; palladium diacetate; 4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane In dichloromethane at 25℃; for 12h; Schlenk technique; Inert atmosphere; | 99% |
With methanol; palladium diacetate; 4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane In dichloromethane at 25℃; for 12h; Sealed tube; Inert atmosphere; chemoselective reaction; | 70% |
With hydrogen In ethanol at 80℃; under 15001.5 Torr; Flow reactor; Green chemistry; chemoselective reaction; | 18% |
With platinum; benzene Hydrogenation; | |
With sodium acetate trihydrate; toluene-4-sulfonic acid hydrazide In tetrahydrofuran at 80℃; for 12h; Inert atmosphere; |
Conditions | Yield |
---|---|
With oxygen; sodium bromide In dibutyl ether at 45℃; under 760.051 Torr; for 5h; Schlenk technique; | A 83% B 9% |
With carbon dioxide; bromine at 40℃; under 187519 Torr; for 2h; Supercritical conditions; Green chemistry; | A 64% B 36% |
With ammonium nitrate; N-Bromosuccinimide In acetonitrile for 8h; | A 53% B 30% |
ethyl bromide
bromobenzene
A
1-bromo-4-ethylbenzene
B
1-bromo-2-ethylbenzene
Conditions | Yield |
---|---|
With aluminium at 80℃; |
Conditions | Yield |
---|---|
With hydrogen bromide; copper(I) bromide; sodium nitrite | |
With hydrogen bromide; copper; sodium nitrite | |
(i) aq. HBr, NaNO2, (ii) Cu; Multistep reaction; | |
(i) NaNO2, aq. HBr, (ii) Cu; Multistep reaction; | |
(i) (diazotization), aq. HBr, (ii) Cu; Multistep reaction; |
bromobenzene
ethene
A
1-bromo-4-ethylbenzene
B
1-bromo-2-ethylbenzene
C
1-bromo-3-ethylbenzene
Conditions | Yield |
---|---|
H-ZSM-5 catalyst at 400℃; Product distribution; alkylation of benzene and momosubstituted benzenes with ethylene over H-ZSM-5 and mordenite-H catalysts; isomerization of ethylarenes over H-mordenite; |
Conditions | Yield |
---|---|
H-mordenite at 250℃; Product distribution; alkylation of benzene and momosubstituted benzenes with ethylene over H-ZSM-5 and mordenite-H catalysts; isomerization of ethylarenes over H-mordenite; |
ethylbenzene
A
bromobenzene
B
1-bromo-4-ethylbenzene
C
1-bromo-2-ethylbenzene
Conditions | Yield |
---|---|
With hydrogen bromide; dihydrogen peroxide at 50℃; Product distribution; Kinetics; Thermodynamic data; oth. temperature, var. stirring rate, var. ratio of reactants, E(activ.), ΔH(activ.), ΔS(activ.), ΔG(activ.); | A 1.6 % Chromat. B 73.3 % Chromat. C 22.2 % Chromat. |
With hydrogenchloride; sodium hypochlorite; sodium bromide In water at 19.85℃; for 5h; Product distribution; Further Variations:; Temperatures; |
ethylbenzene
A
1-bromo-4-ethylbenzene
B
1-bromo-2-ethylbenzene
C
1-bromo-3-ethylbenzene
Conditions | Yield |
---|---|
With bromine; iron(III) chloride In acetic acid at 25 - 75℃; Rate constant; Product distribution; other solvents (nitromethane, acetic anhydride), k (rel. to benzene); |
1-bromo-2-(2-iodoethyl)benzene
A
1-bromo-2-(2-bromoethyl)benzene
B
ethylbenzene
C
1-bromo-2-ethylbenzene
D
2-phenethyl iodide
E
2-bromostyrene
F
1-phenyl-2-bromoethane
Conditions | Yield |
---|---|
With methanol; tert.-butyl lithium In tetrahydrofuran at -98℃; Product distribution; Mechanism; |
1-bromo-2-ethylbenzene
Conditions | Yield |
---|---|
With potassium fluoride In N,N-dimethyl-formamide at 50℃; for 3h; Yield given; |
The molecular structure of 2-Bromoethylbenzene (CAS NO.1973-22-4) is
IUPAC Name: 1-Bromo-2-ethylbenzene
Molecular Formula: C8H9 Br
Molecular Weight: 185.06
EINECS: 217-823-8
Density: 1.338
Melting Point: -56 °C
Boiling Point: 199.9 °C at 760 mmHg
Flash Point: 71 ºC
Appearance: Clear colourless to light yellow liquid
Freely Rotating Bonds: 1
Polar Surface Area: Å2
Index of Refraction: 1.54
Molar Refractivity: 43.49 cm3
Molar Volume: 138.4 cm3
Polarizability: 17.24 ×10-24 cm3
Surface Tension: 34 dyne/cm
Enthalpy of Vaporization: 41.83 kJ/mol
Vapour Pressure: 0.471 mmHg at 25°C
The Cas Register Number of 2-Bromoethylbenzene is 1973-22-4. The chemical synonyms of 2-Bromoethylbenzene (CAS NO.1973-22-4) are 2-Ethylbromobenzene ; 1-Bromo-2-ethylbenzene ; O-Bromoethylbenzene ; 1-Ethyl-2-brombenzol ; 1-Ethyl-2-bromobenzene ; 2-Bromo-1-ethylbenzene ; benzene,1-bromo-2-ethyl- ; o-ethylbromobenzene . Its product categories are Benzene derivates ; Bromine Compounds ; Aryl ; C8 ; Halogenated Hydrocarbons .
2-Bromoethylbenzene (CAS NO.1973-22-4) is used as organic reagent, pharmaceutical intermediate.
Hazard Codes: Xi,N,O
Risk Statements: 36/37/38-51/53
R36/37/38: Irritating to eyes, respiratory system and skin.
R51/53: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 26-61-24/25
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S61: Avoid release to the environment. Refer to special instructions / safety data sheets.
S24/25: Avoid contact with skin and eyes.
RIDADR: UN 3082 9/PG 3
WGK Germany: 3
F: 9
HazardClass: IRRITANT
HS Code: 29036990