Product Name

  • Name

    Isobutylbenzene

  • EINECS 208-706-2
  • CAS No. 538-93-2
  • Article Data166
  • CAS DataBase
  • Density 0.862 g/cm3
  • Solubility insoluble in water
  • Melting Point -51 °C(lit.)
  • Formula C10H14
  • Boiling Point 175.4 °C at 760 mmHg
  • Molecular Weight 134.221
  • Flash Point 49.9 °C
  • Transport Information UN 3295
  • Appearance Clear colourless liquid
  • Safety 26-36-61-60
  • Risk Codes 10-36/37/38-50/53
  • Molecular Structure Molecular Structure of 538-93-2 (Isobutylbenzene)
  • Hazard Symbols IrritantXi,DangerousN
  • Synonyms Benzene,isobutyl- (8CI);(2-Methylpropyl)benzene;2-Methyl-1-phenylpropane;
  • PSA 0.00000
  • LogP 2.88510

Synthetic route

2-Methyl-1-phenyl-2-propanol
100-86-7

2-Methyl-1-phenyl-2-propanol

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
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
65693-16-5

(2E)-2-methyl-3-phenylallyl acetate

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
With sodium tetrahydroborate; nickel dichloride In methanol at 0℃; for 0.166667h;95%
2-methylpropylmagnesium chloride
5674-02-2

2-methylpropylmagnesium chloride

chlorobenzene
108-90-7

chlorobenzene

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
With iron(II) chloride tetrahydrate; 1,3-bis[2,6-diisopropylphenyl]imidazolium chloride In tetrahydrofuran at 70℃; for 3h; Inert atmosphere;92%
tert-butylbenzene
253185-03-4, 253185-04-5

tert-butylbenzene

{Rh-bis(1,2-bis(diphenylphosphino)ethane))}ClO4
30513-14-5

{Rh-bis(1,2-bis(diphenylphosphino)ethane))}ClO4

A

hydrido{1,2-bis-(diphenylphosphino)ethane}rhodium
29189-87-5

hydrido{1,2-bis-(diphenylphosphino)ethane}rhodium

B

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
In benzonitrile Electrolysis; GC-MS;A 90%
B 10%
phenylmagnesium bromide

phenylmagnesium bromide

isobutyryl chloride
513-36-0

isobutyryl chloride

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
With 1-methyl-pyrrolidin-2-one; palladium diacetate; tricyclohexylphosphine In tetrahydrofuran at 20℃; for 20h; Kumada coupling;72%
1,1-dimethyl-2-phenylethyl acetate
151-05-3

1,1-dimethyl-2-phenylethyl acetate

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
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
53403-04-6

(+)-(1S,2S)-1-methyl-2-phenylcyclopropane

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
With C9H24B11N2(1+)*C24BF20(1-); hydrogen In benzene at 80℃; for 24h; Autoclave;70%
1-methylene-2-phenylcyclopropane
29817-09-2, 22664-13-7

1-methylene-2-phenylcyclopropane

A

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

B

1-butylbenzene
104-51-8

1-butylbenzene

C

sec-Butylbenzene
135-98-8, 36383-15-0

sec-Butylbenzene

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In 2,2,4-trimethylpentane Thermodynamic data; ΔHH;A 31.47%
B 64.69%
C 3.84%
methyl (E)-2-(2-methyl-1-phenylpropylidene)hydrazine-1-carboxylate

methyl (E)-2-(2-methyl-1-phenylpropylidene)hydrazine-1-carboxylate

A

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

B

1,2-bis(2-methyl-1-phenylpropylidene)hydrazine
19838-99-4

1,2-bis(2-methyl-1-phenylpropylidene)hydrazine

Conditions
ConditionsYield
With potassium hydroxide In 2,2'-[1,2-ethanediylbis(oxy)]bisethanol at 140℃; for 4h; Wolff-Kishner Reduction;A 53%
B 30%
methyl (2-methyl-1-phenylpropan-2-yl) oxalate

methyl (2-methyl-1-phenylpropan-2-yl) oxalate

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
With 2-(2'-pyridyl)benzimidazole; diphenylsilane; magnesium chloride; nickel dichloride; zinc In N,N-dimethyl acetamide at 40℃; Inert atmosphere; Schlenk technique;52%
diethylmethylsilane
760-32-7

diethylmethylsilane

carbon monoxide
201230-82-2

carbon monoxide

1,1-dimethyl-2-phenylethyl acetate
151-05-3

1,1-dimethyl-2-phenylethyl acetate

A

2-methyl-1-phenyl-2-propene
3290-53-7

2-methyl-1-phenyl-2-propene

B

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

C

(2-methyl-1-propenyl)-benzene
768-49-0

(2-methyl-1-propenyl)-benzene

Conditions
ConditionsYield
dicobalt octacarbonyl In benzene at 140℃; under 38000 Torr;A 45%
B 11%
C 17%
1-iodo-2-methyl-2-phenylpropane
19479-63-1

1-iodo-2-methyl-2-phenylpropane

acetophenone
98-86-2

acetophenone

A

tert-butylbenzene
253185-03-4, 253185-04-5

tert-butylbenzene

B

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

C

phenyl-(3-phenyl-2,2-dimethyl-1-propyl)ketone

phenyl-(3-phenyl-2,2-dimethyl-1-propyl)ketone

D

phenyl(3-phenyl-3-methyl-1-butyl)ketone

phenyl(3-phenyl-3-methyl-1-butyl)ketone

Conditions
ConditionsYield
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
151-05-3

1,1-dimethyl-2-phenylethyl acetate

HSiPh3
789-25-3

HSiPh3

A

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

B

triphenylsilyl acetate
1929-33-5

triphenylsilyl acetate

Conditions
ConditionsYield
With di-tert-butyl peroxide at 140℃; for 12h;A 43%
B n/a
1-iodo-4-isobutylbenzene
85609-09-2

1-iodo-4-isobutylbenzene

N-propionylmorpholine sodium enolate

N-propionylmorpholine sodium enolate

A

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

B

2-(4-isobutylphenyl)-1-morpholinopropan-1-one

2-(4-isobutylphenyl)-1-morpholinopropan-1-one

Conditions
ConditionsYield
With iron(II) sulfate In ammonia for 1.5h;A 13%
B 42%

A

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

B

cis-1-isopropyl-4-methyl-cyclohexane
6069-98-3

cis-1-isopropyl-4-methyl-cyclohexane

C

isobutylcyclohexane
1678-98-4

isobutylcyclohexane

F

o-mentha-1(7),5,8-triene
76786-83-9

o-mentha-1(7),5,8-triene

Conditions
ConditionsYield
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
62726-47-0

β-phenylisovaleryl peroxide

A

tert-butylbenzene
253185-03-4, 253185-04-5

tert-butylbenzene

B

2-methyl-1-phenyl-2-propene
3290-53-7

2-methyl-1-phenyl-2-propene

C

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

D

2-methyl-2-phenyl-propan-1-ol
2173-69-5

2-methyl-2-phenyl-propan-1-ol

E

3-methyl-3-phenylbutanoic acid
1010-48-6

3-methyl-3-phenylbutanoic acid

F

bineophyl
17648-05-4

bineophyl

Conditions
ConditionsYield
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
100-86-7

2-Methyl-1-phenyl-2-propanol

A

2-methyl-1-phenyl-2-propene
3290-53-7

2-methyl-1-phenyl-2-propene

B

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

C

(2-methyl-1-propenyl)-benzene
768-49-0

(2-methyl-1-propenyl)-benzene

Conditions
ConditionsYield
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%
(2-methyl-1-propenyl)-benzene
768-49-0

(2-methyl-1-propenyl)-benzene

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
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
isopropyl bromide
75-26-3

isopropyl bromide

benzylmagnesium chloride
6921-34-2

benzylmagnesium chloride

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
at 0℃; for 1h;8%
phosgene
75-44-5

phosgene

diethyl ether
60-29-7

diethyl ether

neophyl chloride
515-40-2

neophyl chloride

phenylmagnesium bromide

phenylmagnesium bromide

A

tert-butylbenzene
253185-03-4, 253185-04-5

tert-butylbenzene

B

2-methyl-1-phenyl-2-propene
3290-53-7

2-methyl-1-phenyl-2-propene

C

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

D

(2-methyl-1-propenyl)-benzene
768-49-0

(2-methyl-1-propenyl)-benzene

bromobenzene
108-86-1

bromobenzene

Isobutyl bromide
78-77-3

Isobutyl bromide

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
With sodium
bromobenzene
108-86-1

bromobenzene

Isobutyl iodide
513-38-2

Isobutyl iodide

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
With sodium; benzene
diisopropyl sulfate
2973-10-6

diisopropyl sulfate

phenylmagnesium bromide
1589-82-8

phenylmagnesium bromide

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
With diethyl ether
Isobutyl bromide
78-77-3

Isobutyl bromide

phenylmagnesium bromide

phenylmagnesium bromide

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
at 100℃;
With diethyl ether
3-methyl-3-phenylbutanal
6325-41-3

3-methyl-3-phenylbutanal

A

tert-butylbenzene
253185-03-4, 253185-04-5

tert-butylbenzene

B

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
With di-tert-butyl peroxide
2,2,4,4,-Tetramethyl-1-phenyl-3-pentanon
80958-97-0

2,2,4,4,-Tetramethyl-1-phenyl-3-pentanon

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
With sodium amide; benzene
With sodium amide; xylene
2,2,4,4-tetramethyl-1,5-diphenyl-pentan-3-one
153339-36-7

2,2,4,4-tetramethyl-1,5-diphenyl-pentan-3-one

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
With sodium amide; benzene
With sodium amide; xylene
isobutylmagnesium bromide
926-62-5

isobutylmagnesium bromide

phenylmagnesium bromide

phenylmagnesium bromide

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
With silver(I) bromide; diethyl ether
isopropylmagnesium bromide
920-39-8

isopropylmagnesium bromide

phenylmagnesium bromide
1589-82-8

phenylmagnesium bromide

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Conditions
ConditionsYield
With silver(I) bromide; diethyl ether
1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

1-iodo-4-isobutylbenzene
85609-09-2

1-iodo-4-isobutylbenzene

Conditions
ConditionsYield
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
538-93-2

1-phenyl-2-methylpropane

ethyl 2-chloro-2-methylthio-acetate
145628-18-8, 56078-31-0

ethyl 2-chloro-2-methylthio-acetate

ethyl α-methylthio-(p-isobutylphenyl)acetate
75280-07-8

ethyl α-methylthio-(p-isobutylphenyl)acetate

Conditions
ConditionsYield
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
538-93-2

1-phenyl-2-methylpropane

Heptanoic acid chloride
2528-61-2

Heptanoic acid chloride

4'-Isobutylheptanophenone
148367-02-6

4'-Isobutylheptanophenone

Conditions
ConditionsYield
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
538-93-2

1-phenyl-2-methylpropane

butyryl chloride
141-75-3

butyryl chloride

1-(4-isobutyl-phenyl)-1-butanone
104483-01-4

1-(4-isobutyl-phenyl)-1-butanone

Conditions
ConditionsYield
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%
1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

propionyl chloride
79-03-8

propionyl chloride

4-isobutylpropiophenone
59771-24-3

4-isobutylpropiophenone

Conditions
ConditionsYield
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
538-93-2

1-phenyl-2-methylpropane

n-valeryl chloride
638-29-9

n-valeryl chloride

1-(4-isobutylphenyl)pentan-1-one
148367-01-5

1-(4-isobutylphenyl)pentan-1-one

Conditions
ConditionsYield
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
108-30-5

succinic acid anhydride

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

4-(4-isobutylphenyl)-4-oxobutanoic acid
73120-67-9

4-(4-isobutylphenyl)-4-oxobutanoic acid

Conditions
ConditionsYield
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
538-93-2

1-phenyl-2-methylpropane

diethyl methylthio(chloro)methanephosphonate
28975-74-8

diethyl methylthio(chloro)methanephosphonate

[(4-Isobutyl-phenyl)-methylsulfanyl-methyl]-phosphonic acid diethyl ester
107126-09-0

[(4-Isobutyl-phenyl)-methylsulfanyl-methyl]-phosphonic acid diethyl ester

Conditions
ConditionsYield
With tin(IV) chloride In dichloromethane for 0.666667h; Ambient temperature;99%
1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

1-(4-isobutyl-phenyl)-ethanone
38861-78-8

1-(4-isobutyl-phenyl)-ethanone

Conditions
ConditionsYield
With boron trifluoride; sulfur dioxide; acetic anhydride98.7%
1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

acetyl chloride
75-36-5

acetyl chloride

1-(4-isobutyl-phenyl)-ethanone
38861-78-8

1-(4-isobutyl-phenyl)-ethanone

Conditions
ConditionsYield
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
538-93-2

1-phenyl-2-methylpropane

4-bromo-isobutylbenzene
57181-82-5

4-bromo-isobutylbenzene

Conditions
ConditionsYield
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;
1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

4-(tert-butyl)phenyl sulfamate

4-(tert-butyl)phenyl sulfamate

C20H27NO3S

C20H27NO3S

Conditions
ConditionsYield
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
538-93-2

1-phenyl-2-methylpropane

Diethyl ketomalonate
609-09-6

Diethyl ketomalonate

diethyl (4-isobutylphenyl)tartronate
83026-13-5

diethyl (4-isobutylphenyl)tartronate

Conditions
ConditionsYield
With tin(IV) chloride In dichloromethane 1.) 0 deg C, 10 min, 2.) 20 deg C, 3 h;94%
1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

n-octanoic acid chloride
111-64-8

n-octanoic acid chloride

1-(4'-Isobutylphenyl)octan-1-one
93673-09-7

1-(4'-Isobutylphenyl)octan-1-one

Conditions
ConditionsYield
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%
1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

phenyl isopropyl ketone
611-70-1

phenyl isopropyl ketone

Conditions
ConditionsYield
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
7031-27-8

(phenylthio)acetic acid chloride

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

4-isobutyl-α-(phenylthio)acetophenone
122657-57-2

4-isobutyl-α-(phenylthio)acetophenone

Conditions
ConditionsYield
With aluminium trichloride for 1h; Ambient temperature;91%
1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

methyloxirane
75-56-9, 16033-71-9

methyloxirane

ibuprofen
15687-27-1

ibuprofen

Conditions
ConditionsYield
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%
1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Benzylidenemalononitrile
2700-22-3

Benzylidenemalononitrile

2-(3-methyl-1,2-diphenylbutyl)malononitrile

2-(3-methyl-1,2-diphenylbutyl)malononitrile

Conditions
ConditionsYield
With 9-(2-mesityl)-10-methylacridinium perchlorate; 1,2-dibromomethane at 50℃; for 24h; Irradiation;91%
1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

Hexanoyl chloride
142-61-0

Hexanoyl chloride

4'-isobutylhexanophenone
146922-67-0

4'-isobutylhexanophenone

Conditions
ConditionsYield
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
10%-hydrochloric acid

10%-hydrochloric acid

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

4-isobutylpropiophenone
59771-24-3

4-isobutylpropiophenone

Conditions
ConditionsYield
aluminium chloride In dichloromethane; propionyl chloride90.2%
1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

pivaloyl chloride
3282-30-2

pivaloyl chloride

2,2-dimethyl-4'-isobutylpropiophenone
139155-61-6

2,2-dimethyl-4'-isobutylpropiophenone

Conditions
ConditionsYield
zinc In toluene at 70℃; for 6h; Acylation;90%
(methylthio)acetyl chloride
35928-65-5

(methylthio)acetyl chloride

1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

4-isobutyl-α-(methylthio)acetophenone
122657-55-0

4-isobutyl-α-(methylthio)acetophenone

Conditions
ConditionsYield
With aluminium trichloride In dichloromethane for 1h; Ambient temperature;89%
1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

chloroacetyl chloride
79-04-9

chloroacetyl chloride

p-isobutylphenylacetic acid chloride
38588-43-1

p-isobutylphenylacetic acid chloride

Conditions
ConditionsYield
With aluminium trichloride In 1,2-dichloro-ethane at 0 - 5℃; for 4h;89%
1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

1-isobutyl-2,4-dinitro-benzene
552333-50-3

1-isobutyl-2,4-dinitro-benzene

Conditions
ConditionsYield
With sulfuric acid; nitric acid at 0 - 20℃; for 0.5h;89%
1-phenyl-2-methylpropane
538-93-2

1-phenyl-2-methylpropane

acetic anhydride
108-24-7

acetic anhydride

1-(4-isobutyl-phenyl)-ethanone
38861-78-8

1-(4-isobutyl-phenyl)-ethanone

Conditions
ConditionsYield
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
538-93-2

1-phenyl-2-methylpropane

chloroacetyl chloride
79-04-9

chloroacetyl chloride

4-(isobutyl)phenacyl chloride
56374-25-5

4-(isobutyl)phenacyl chloride

Conditions
ConditionsYield
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%

Isobutylbenzene Chemical Properties

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 Uses

 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.

Isobutylbenzene Toxicity Data With Reference

1.    

orl-rat LDLo:5000 mg/kg

    28ZRAQ    Toxicology and Biochemistry of Aromatic Hydrocarbons Gerarde, H.,New York, NY.: Elsevier,1960,56.

Isobutylbenzene Consensus Reports

Reported in EPA TSCA Inventory.

Isobutylbenzene Safety Profile

Hazard Codes: IrritantXi, DangerousN
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 Specification

 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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