Conditions | Yield |
---|---|
With indium(III) chloride; diphenylsilyl chloride In 1,2-dichloro-ethane at 80℃; for 3h; | 99% |
With phosphorus; hydrogen iodide; iodine | |
With hydrogen; pyrographite at 300℃; | |
With platinum on activated charcoal; hydrogen at 300℃; | |
Multi-step reaction with 3 steps 1: 0 °C / Einleiten von HCl 2: magnesium; diethyl ether / Behandlung der erhaltenen Grignard-Verbindung mit Deutero-essigsaeure 3: platinum; ethanol / Hydrogenation View Scheme |
(2E)-2-methyl-3-phenylallyl acetate
1-phenyl-2-methylpropane
Conditions | Yield |
---|---|
With sodium tetrahydroborate; nickel dichloride In methanol at 0℃; for 0.166667h; | 95% |
Conditions | Yield |
---|---|
With iron(II) chloride tetrahydrate; 1,3-bis[2,6-diisopropylphenyl]imidazolium chloride In tetrahydrofuran at 70℃; for 3h; Inert atmosphere; | 92% |
tert-butylbenzene
{Rh-bis(1,2-bis(diphenylphosphino)ethane))}ClO4
A
hydrido{1,2-bis-(diphenylphosphino)ethane}rhodium
B
1-phenyl-2-methylpropane
Conditions | Yield |
---|---|
In benzonitrile Electrolysis; GC-MS; | A 90% B 10% |
Conditions | Yield |
---|---|
With 1-methyl-pyrrolidin-2-one; palladium diacetate; tricyclohexylphosphine In tetrahydrofuran at 20℃; for 20h; Kumada coupling; | 72% |
Conditions | Yield |
---|---|
With di-tert-butyl peroxide; (4-diphenylsilylphenyl)diphenylsilane at 140℃; for 15h; | 71% |
With di-tert-butyl peroxide; (4-diphenylsilylphenyl)diphenylsilane at 140℃; for 15h; Product distribution; alcohol deoxygenation via acetate; reaction with Ph3SiH; | 71% |
(+)-(1S,2S)-1-methyl-2-phenylcyclopropane
1-phenyl-2-methylpropane
Conditions | Yield |
---|---|
With C9H24B11N2(1+)*C24BF20(1-); hydrogen In benzene at 80℃; for 24h; Autoclave; | 70% |
1-methylene-2-phenylcyclopropane
A
1-phenyl-2-methylpropane
B
1-butylbenzene
C
sec-Butylbenzene
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In 2,2,4-trimethylpentane Thermodynamic data; ΔHH; | A 31.47% B 64.69% C 3.84% |
A
1-phenyl-2-methylpropane
B
1,2-bis(2-methyl-1-phenylpropylidene)hydrazine
Conditions | Yield |
---|---|
With potassium hydroxide In 2,2'-[1,2-ethanediylbis(oxy)]bisethanol at 140℃; for 4h; Wolff-Kishner Reduction; | A 53% B 30% |
1-phenyl-2-methylpropane
Conditions | Yield |
---|---|
With 2-(2'-pyridyl)benzimidazole; diphenylsilane; magnesium chloride; nickel dichloride; zinc In N,N-dimethyl acetamide at 40℃; Inert atmosphere; Schlenk technique; | 52% |
diethylmethylsilane
carbon monoxide
1,1-dimethyl-2-phenylethyl acetate
A
2-methyl-1-phenyl-2-propene
B
1-phenyl-2-methylpropane
C
(2-methyl-1-propenyl)-benzene
Conditions | Yield |
---|---|
dicobalt octacarbonyl In benzene at 140℃; under 38000 Torr; | A 45% B 11% C 17% |
1-iodo-2-methyl-2-phenylpropane
acetophenone
A
tert-butylbenzene
B
1-phenyl-2-methylpropane
Conditions | Yield |
---|---|
With potassium tert-butylate In dimethyl sulfoxide for 1h; Substitution; Reduction; Rearrangement; Irradiation; | A n/a B n/a C 15.5% D 44.9% |
1,1-dimethyl-2-phenylethyl acetate
HSiPh3
A
1-phenyl-2-methylpropane
B
triphenylsilyl acetate
Conditions | Yield |
---|---|
With di-tert-butyl peroxide at 140℃; for 12h; | A 43% B n/a |
1-iodo-4-isobutylbenzene
A
1-phenyl-2-methylpropane
Conditions | Yield |
---|---|
With iron(II) sulfate In ammonia for 1.5h; | A 13% B 42% |
verbenene
A
1-phenyl-2-methylpropane
B
cis-1-isopropyl-4-methyl-cyclohexane
C
isobutylcyclohexane
cis-o-menthane
trans-o-menthane
F
o-mentha-1(7),5,8-triene
Conditions | Yield |
---|---|
In benzene at 380 - 390℃; Product distribution; hydrogenation of the reaction mixture in AcOH on 2percentPd/C, r.t.; | A 15.2% B 6.7% C 35.3% D 8.2% E 19.6% F 29% |
β-phenylisovaleryl peroxide
A
tert-butylbenzene
B
2-methyl-1-phenyl-2-propene
C
1-phenyl-2-methylpropane
D
2-methyl-2-phenyl-propan-1-ol
E
3-methyl-3-phenylbutanoic acid
F
bineophyl
Conditions | Yield |
---|---|
In acetonitrile at 55℃; Product distribution; Rate constant; other solvents (benzene, cyclohexane), other temperature, ClCH2COOH as a reagent, possible ways of the products formation; | A 12.0 % Chromat. B 6.6 % Chromat. C 12.1 % Chromat. D 4.0 % Chromat. E 26.1% F 7.6 % Chromat. |
2-Methyl-1-phenyl-2-propanol
A
2-methyl-1-phenyl-2-propene
B
1-phenyl-2-methylpropane
C
(2-methyl-1-propenyl)-benzene
Conditions | Yield |
---|---|
With triphenyl phosphite; tetraethylammonium bromide In acetonitrile constant current electrolysis, 100 mA; | A n/a B 19% C 59 % Chromat. |
With triphenyl phosphite; tetraethylammonium bromide In acetonitrile constant current electrolysis, 100 mA; | A n/a B 19 % Chromat. C 19% |
Conditions | Yield |
---|---|
Stage #1: (2-methyl-1-propenyl)-benzene With Dimethylphenylsilane; copper(l) chloride In various solvent(s) at 20℃; for 28h; Reduction; Stage #2: With water; toluene-4-sulfonic acid In various solvent(s) at 20℃; Hydrolysis; | 8% |
With ethanol; platinum Hydrogenation; | |
With hydrogen |
Conditions | Yield |
---|---|
at 0℃; for 1h; | 8% |
phosgene
diethyl ether
neophyl chloride
A
tert-butylbenzene
B
2-methyl-1-phenyl-2-propene
C
1-phenyl-2-methylpropane
D
(2-methyl-1-propenyl)-benzene
Conditions | Yield |
---|---|
With sodium |
Conditions | Yield |
---|---|
With sodium; benzene |
Conditions | Yield |
---|---|
With diethyl ether |
Conditions | Yield |
---|---|
at 100℃; | |
With diethyl ether |
3-methyl-3-phenylbutanal
A
tert-butylbenzene
B
1-phenyl-2-methylpropane
Conditions | Yield |
---|---|
With di-tert-butyl peroxide |
2,2,4,4,-Tetramethyl-1-phenyl-3-pentanon
1-phenyl-2-methylpropane
Conditions | Yield |
---|---|
With sodium amide; benzene | |
With sodium amide; xylene |
2,2,4,4-tetramethyl-1,5-diphenyl-pentan-3-one
1-phenyl-2-methylpropane
Conditions | Yield |
---|---|
With sodium amide; benzene | |
With sodium amide; xylene |
Conditions | Yield |
---|---|
With silver(I) bromide; diethyl ether |
isopropylmagnesium bromide
phenylmagnesium bromide
1-phenyl-2-methylpropane
Conditions | Yield |
---|---|
With silver(I) bromide; diethyl ether |
1-phenyl-2-methylpropane
1-iodo-4-isobutylbenzene
Conditions | Yield |
---|---|
With Barluenga reagent; trifluorormethanesulfonic acid In dichloromethane for 0.5h; Ambient temperature; | 100% |
With silver(I) nitrite; iodine In dichloromethane at 20℃; for 96h; | 70% |
With silver(I) nitrite; iodine In dichloromethane at 20℃; for 96h; | 70% |
With iodine; iodic acid; acetic acid |
1-phenyl-2-methylpropane
ethyl 2-chloro-2-methylthio-acetate
ethyl α-methylthio-(p-isobutylphenyl)acetate
Conditions | Yield |
---|---|
tin(IV) chloride In dichloromethane for 0.666667h; Ambient temperature; | 100% |
tin(IV) chloride In dichloromethane for 0.666667h; Ambient temperature; Yield given; |
1-phenyl-2-methylpropane
Heptanoic acid chloride
4'-Isobutylheptanophenone
Conditions | Yield |
---|---|
Stage #1: Heptanoic acid chloride With aluminium trichloride In dichloromethane at 0℃; for 0.5h; Stage #2: 1-phenyl-2-methylpropane In dichloromethane at 0℃; for 1h; Friedel-Crafts acylation; | 99.7% |
1-phenyl-2-methylpropane
butyryl chloride
1-(4-isobutyl-phenyl)-1-butanone
Conditions | Yield |
---|---|
Stage #1: butyryl chloride With aluminium trichloride In dichloromethane at 0℃; for 0.5h; Stage #2: 1-phenyl-2-methylpropane In dichloromethane at 0℃; for 1h; Friedel-Crafts acylation; | 99.3% |
Conditions | Yield |
---|---|
Stage #1: propionyl chloride With aluminium trichloride In dichloromethane at 0℃; for 0.5h; Stage #2: 1-phenyl-2-methylpropane In dichloromethane at 0℃; for 1h; Friedel-Crafts acylation; | 99.2% |
With aluminum (III) chloride In neat (no solvent) at 87℃; under 10343.2 Torr; for 0.0166667h; Temperature; Pressure; Friedel-Crafts Acylation; | 95% |
With aluminium trichloride In carbon disulfide below 5 deg C, 1.5 h, then room temp., overnight; | 88% |
1-phenyl-2-methylpropane
n-valeryl chloride
1-(4-isobutylphenyl)pentan-1-one
Conditions | Yield |
---|---|
Stage #1: n-valeryl chloride With aluminium trichloride In dichloromethane at 0℃; for 0.5h; Stage #2: 1-phenyl-2-methylpropane In dichloromethane at 0℃; for 1h; Friedel-Crafts acylation; | 99.1% |
Stage #1: 1-phenyl-2-methylpropane; n-valeryl chloride In Petroleum ether at 20℃; for 0.25h; Stage #2: With trifluorormethanesulfonic acid In Petroleum ether for 10h; Reflux; | 79.6% |
With sodium hydrogencarbonate; aluminium chloride In dichloromethane |
succinic acid anhydride
1-phenyl-2-methylpropane
4-(4-isobutylphenyl)-4-oxobutanoic acid
Conditions | Yield |
---|---|
Stage #1: succinic acid anhydride; 1-phenyl-2-methylpropane With aluminum (III) chloride In 1,1-dichloroethane at 20℃; for 1h; Heating / reflux; Stage #2: With hydrogenchloride In 1,1-dichloroethane; water at 20℃; for 0.166667h; | 99% |
With aluminium trichloride In 1,2-dichloro-ethane for 4h; | 93% |
With aluminium trichloride In nitrobenzene at 100℃; for 4h; Friedel Crafts succinoylation; | 80% |
1-phenyl-2-methylpropane
diethyl methylthio(chloro)methanephosphonate
[(4-Isobutyl-phenyl)-methylsulfanyl-methyl]-phosphonic acid diethyl ester
Conditions | Yield |
---|---|
With tin(IV) chloride In dichloromethane for 0.666667h; Ambient temperature; | 99% |
1-phenyl-2-methylpropane
1-(4-isobutyl-phenyl)-ethanone
Conditions | Yield |
---|---|
With boron trifluoride; sulfur dioxide; acetic anhydride | 98.7% |
Conditions | Yield |
---|---|
With aluminum (III) chloride In dichloromethane at -10℃; for 1h; | 97% |
With aluminium trichloride In dichloromethane at 25℃; for 12h; | 95% |
With aluminum (III) chloride In dichloromethane at 0℃; for 1.5h; | 95% |
1-phenyl-2-methylpropane
4-bromo-isobutylbenzene
Conditions | Yield |
---|---|
With hydrogen bromide; dihydrogen peroxide In 1,2-dichloro-ethane for 8h; Cooling with ice; Irradiation; | 95% |
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In tetrachloromethane for 1h; Bromination; Heating; | 67% |
With Diethyl 2-bromomalonate In benzene at 70℃; Rate constant; Irradiation; k(rel); | |
With Diethyl 2-bromomalonate In benzene at 70℃; Irradiation; |
Conditions | Yield |
---|---|
With tert-butyl isocyanide; [bis(acetoxy)iodo]benzene; dirhodium(II) tetrakis[N-tetrafluorophthaloyl-(S)-tert-leucinate] at 20℃; for 16h; regioselective reaction; | 95% |
1-phenyl-2-methylpropane
Diethyl ketomalonate
diethyl (4-isobutylphenyl)tartronate
Conditions | Yield |
---|---|
With tin(IV) chloride In dichloromethane 1.) 0 deg C, 10 min, 2.) 20 deg C, 3 h; | 94% |
1-phenyl-2-methylpropane
n-octanoic acid chloride
1-(4'-Isobutylphenyl)octan-1-one
Conditions | Yield |
---|---|
With aluminium trichloride In tetrachloromethane at 0℃; for 1h; | 94% |
Stage #1: n-octanoic acid chloride With aluminium trichloride In dichloromethane at 0℃; for 0.5h; Stage #2: 1-phenyl-2-methylpropane In dichloromethane at 0℃; for 1h; Friedel-Crafts acylation; | 77.3% |
Conditions | Yield |
---|---|
With tert.-butylhydroperoxide; RuIII-Montmorillonite K10 In acetonitrile for 4h; Heating; | 94% |
With Oxone; potassium bromide In nitromethane at 20℃; for 24h; | 90% |
With potassium permanganate; Tulsion T-42 exchange resin In dichloromethane; tert-butyl alcohol at 20℃; for 5h; oxidative cleavage; | 88% |
(phenylthio)acetic acid chloride
1-phenyl-2-methylpropane
4-isobutyl-α-(phenylthio)acetophenone
Conditions | Yield |
---|---|
With aluminium trichloride for 1h; Ambient temperature; | 91% |
Conditions | Yield |
---|---|
Stage #1: methyloxirane With aluminum (III) chloride at 20 - 30℃; for 0.5h; Green chemistry; Stage #2: 1-phenyl-2-methylpropane In water at 30 - 80℃; Green chemistry; Stage #3: With sulfuric acid; dihydrogen peroxide at 60 - 80℃; for 5h; Temperature; Reagent/catalyst; Green chemistry; | 91% |
Conditions | Yield |
---|---|
With 9-(2-mesityl)-10-methylacridinium perchlorate; 1,2-dibromomethane at 50℃; for 24h; Irradiation; | 91% |
Conditions | Yield |
---|---|
Stage #1: Hexanoyl chloride With aluminium trichloride In dichloromethane at 0℃; for 0.5h; Stage #2: 1-phenyl-2-methylpropane In dichloromethane at 0℃; for 1h; Friedel-Crafts acylation; | 90.5% |
aluminium trichloride In dichloromethane |
1-phenyl-2-methylpropane
4-isobutylpropiophenone
Conditions | Yield |
---|---|
aluminium chloride In dichloromethane; propionyl chloride | 90.2% |
1-phenyl-2-methylpropane
pivaloyl chloride
2,2-dimethyl-4'-isobutylpropiophenone
Conditions | Yield |
---|---|
zinc In toluene at 70℃; for 6h; Acylation; | 90% |
(methylthio)acetyl chloride
1-phenyl-2-methylpropane
4-isobutyl-α-(methylthio)acetophenone
Conditions | Yield |
---|---|
With aluminium trichloride In dichloromethane for 1h; Ambient temperature; | 89% |
1-phenyl-2-methylpropane
chloroacetyl chloride
p-isobutylphenylacetic acid chloride
Conditions | Yield |
---|---|
With aluminium trichloride In 1,2-dichloro-ethane at 0 - 5℃; for 4h; | 89% |
1-phenyl-2-methylpropane
1-isobutyl-2,4-dinitro-benzene
Conditions | Yield |
---|---|
With sulfuric acid; nitric acid at 0 - 20℃; for 0.5h; | 89% |
1-phenyl-2-methylpropane
acetic anhydride
1-(4-isobutyl-phenyl)-ethanone
Conditions | Yield |
---|---|
With aluminium trichloride In dichloromethane at 0℃; for 1h; | 88% |
With aluminium trichloride In dichloromethane at -5 - 28℃; Acylation; | 70% |
With trifluoroacetic acid at 100℃; for 56h; Friedel-Crafts Acylation; Inert atmosphere; | 65% |
1-phenyl-2-methylpropane
chloroacetyl chloride
4-(isobutyl)phenacyl chloride
Conditions | Yield |
---|---|
With aluminium trichloride In 1,2-dichloro-ethane at 0 - 5℃; for 3.5h; | 87% |
With aluminum (III) chloride; bismuth(III) chloride In dichloromethane at 0 - 5℃; Friedel Crafts acylation; | 87% |
Molecule structure of Isobutylbenzene (CAS NO.538-93-2):
IUPAC Name: 2-Methylpropylbenzene
Molecular Weight: 134.21816 g/mol
Molecular Formula: C10H14
Melting Point: -51 °C(lit.)
Boiling Point: 175.4 °C at 760 mmHg
Density: 0.853 g/mL at 25 °C(lit.)
Flash Point: 49.9 °C
Storage Temp.: flammables area
Water Solubility: insoluble
Index of Refraction: 1.49
Molar Refractivity: 45.02 cm3
Molar Volume: 155.6 cm3
Surface Tension: 28.8 dyne/cm
XLogP3: 3.9
Rotatable Bond Count: 2
Exact Mass: 134.10955
MonoIsotopic Mass: 134.10955
Canonical SMILES: CC(C)CC1=CC=CC=C1
InChI: InChI=1S/C10H14/c1-9(2)8-10-6-4-3-5-7-10/h3-7,9H,8H2,1-2H3
InChIKey: KXUHSQYYJYAXGZ-UHFFFAOYSA-N
EINECS: 208-706-2
Isobutylbenzene (CAS NO.538-93-2) is used in the produced the drug of ibuprofen that can be used in analgesia, antipyretic antiphlogistic.It is also used in organic synthesis.
1. | orl-rat LDLo:5000 mg/kg | 28ZRAQ Toxicology and Biochemistry of Aromatic Hydrocarbons Gerarde, H.,New York, NY.: Elsevier,1960,56. |
Reported in EPA TSCA Inventory.
Hazard Codes: Xi, N
Risk Statements: 10-36/37/38-50/53
R10:Flammable.
R36/37/38:Irritating to eyes, respiratory system and skin.
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 26-36-61-60
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
S60:This material and its container must be disposed of as hazardous waste.
RIDADR: UN 3295 3/PG 3
WGK Germany: 3
RTECS: DA3550000
HazardClass: 3
PackingGroup: III
Mildly toxic by ingestion. An irritant and possibly narcotic. Flammable liquid when exposed to heat, sparks, or flame. Can react with oxidizing materials. Moderate explosion hazard when exposed to heat or flame. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and fumes.
Isobutylbenzene (CAS NO.538-93-2) is also named as (2-Methylpropyl)benzene ; 1-Phenyl-2-methylpropane ; 2-Methyl-1-phenylpropane ; 2-Phenyl-2-methylpropane ; 4-05-00-01042 (Beilstein Handbook Reference) ; BRN 1852218 ; NSC 24848 ; Benzene, (2-methylpropyl)- ; Benzene, isobutyl- . Isobutylbenzene (CAS NO.538-93-2) is colorless liquid. It is insoluble in water, soluble in alcohol, ether, benzene and acetone. It is toxic. It is flammable. So the storage environment should be ventilate, low-temperature and dry. Keep Isobutylbenzene separate from oxidant.
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