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1. Basic physical properties Isobutane is a colorless flammable gas at normal temperature and pressure. Melting point -159.4 ℃. Boiling point -11.73℃. Slightly soluble in water, soluble in ethanol, ether, etc. It forms an explosive mixture with air,
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Adequate stocks available,prompt shipment,Strictly control on quality,Timely after-sales Application:API
A
Isobutane
C
deuterium
Conditions | Yield |
---|---|
With water In water byproducts: H2, HD; acid hydrolysis with 20% DCl (84%); quantities of the products determined; | A n/a B 100% C n/a D n/a |
Conditions | Yield |
---|---|
With water In water acid hydrolysis with 20% HCl; quantities of the products determined; | A n/a B 100% C n/a D n/a |
Conditions | Yield |
---|---|
With triisopropylborane; trifluorormethanesulfonic acid In 1,1,2-Trichloro-1,2,2-trifluoroethane 1.) -30 deg C, 30 min 2.) room temp., 6 h; | A 99.9% B 0.1% |
Conditions | Yield |
---|---|
With tris-(trimethylsilyl)silane; 2,2'-azobis(isobutyronitrile) In toluene at 80℃; for 0.5h; | 98% |
Conditions | Yield |
---|---|
With trifluorormethanesulfonic acid In 1,1,2-Trichloro-1,2,2-trifluoroethane 1.) -30 deg C 2.) room temp.; | A 92.5% B 7.5% |
Conditions | Yield |
---|---|
In hexane room temp.; further products:t-butylcyclopentadiene, tetramethylbutane, 2-methyl-4,4-dimethyl-1-pentene; GCL; | A 92% B n/a C n/a D n/a |
Conditions | Yield |
---|---|
With aluminium trichloride; polyethoxysilane (silicone GKZh-94) In nitromethane Product distribution; | A 6% B 91% |
2,2-dimethylpropane
A
methane
B
ethane
C
propane
D
Isobutane
E
methylbutane
Conditions | Yield |
---|---|
With hydrogen; platinum at 243℃; Product distribution; further reaction temperatures, catalysts; | A 2.7% B 1.5% C 1.5% D 6.7% E 87.8% |
at 304℃; Product distribution; also from n-butane, other products,other temperatures, other catalysts; | A 7% B 1.7% C 2.4% D 15.6% E 73.3% |
With hydrogen; NaY-500; palladium at 216℃; Product distribution; Kinetics; Thermodynamic data; other catalysts, other temperatures; activation energies; | |
With hydrogen In neat (no solvent) at 275℃; under 1225.5 Torr; Reagent/catalyst; Inert atmosphere; |
tetraisobutyl stannane
A
propane
B
Isobutane
C
isobutene
D
n-butane
Conditions | Yield |
---|---|
With hydrogen byproducts: C5 hydrocarbons, paraffin; 20 h, 300-310°C, 100 atm; | A 1.6% B 85.7% C 2.5% D 3.1% |
With H2 byproducts: C5 hydrocarbons, paraffin; 20 h, 300-310°C, 100 atm; | A 1.6% B 85.7% C 2.5% D 3.1% |
{bis(triphenylphosphine)nitrogen}{HW(CO)5}
t-butyl bromide
A
bromopentacarbonyl tungstate(0)(1-)
B
Isobutane
Conditions | Yield |
---|---|
In tetrahydrofuran Kinetics; 26.0°C, 20-fold excess of alkyl halide; second-order rate const. is given; anal. of the reaction mixt. by gas chromy.; | A n/a B 81% |
Isobutane
Conditions | Yield |
---|---|
With hydrogen | 79.5% |
With H2 | 79.5% |
With hydrogen | 79.5% |
Conditions | Yield |
---|---|
With aluminium trichloride; polyethoxysilane (silicone GKZh-94) In nitromethane Product distribution; | A 4% B 78% |
2,4,6-tri-t-butylphenyl-fluoro-(ethylamino)borane
A
2,4,6-tri-t-butylphenyl-(ethylimino)borane
B
Isobutane
Conditions | Yield |
---|---|
With tert.-butyl lithium In hexane byproducts: LiF; dropping a soln. of t-butyl lithium in n-hexane to a soln. of 2,4,6-tri-t-butylphenyl-fluoro-(ethylamino)borane in n-hexane under N2 at -50°C and allowing to stand overnight; removal of the solvent under reduced pressure and subliming the iminoborane from the residue in an oil pump vacuum, elem. anal.; | A 78% B n/a |
adamantylamino-2,4,6-tri-t-butylphenyl fluoroborane
A
(adamantylimino)-2,4,6-tri-t-butylphenyl-borane
B
Isobutane
Conditions | Yield |
---|---|
With tert.-butyl lithium In hexane byproducts: LiF; dropping a soln. of t-butyl lithium in n-hexane to a soln. of adamantylamino-2,4,6-tri-t-butylphenyl-fluoroborane in n-hexane under N2 at -50°C, allowing to stand overnight and refluxing for 12 h; removal of the solvent under reduced pressure and subliming the iminoborane from the residue in an oil pump vacuum, elem. anal.; | A 73% B n/a |
diethyl(2,2'-bipyridyl)nickel(II)
tertiary butyl chloride
A
dichloro(2,2'-bipyridine)nickel(II)
B
ethane
C
Isobutane
D
isobutene
E
n-butane
Conditions | Yield |
---|---|
In neat (no solvent) t-BuCl added by trap-to-trap distn. to NiEt2(bpy), stirred at room temp. for 3 d; evapd. in vac.; GLC anal.; | A 70% B 2% C 4% D 50% E 64% |
Conditions | Yield |
---|---|
With aluminum oxide; silica gel; boron trichloride at 59.85℃; Product distribution; | A 1.8% B 68.8% |
2-Methylpentane
A
2-Methylhexane
B
methane
C
ethane
D
propane
E
Isobutane
F
methylbutane
Conditions | Yield |
---|---|
With hydrogen; tungsten film at 223.9℃; Product distribution; various temperature; | A 0.2% B n/a C n/a D 1.5% E 1.4% F 65.8% |
(η5-pentamethylcyclopentadienyl)2(zirconium)(H)(iosbutyl)2
A
Cp'2Zr(H)Ph
B
Isobutane
Conditions | Yield |
---|---|
With benzene In benzene Irradiation (UV/VIS); (C5Me5)2Zr(H)CH2CH(CH3) in benzene is degassed and photolyzed with a blacklight for 10 days (vac.).; Evapn., addn. of petroleum ether at -78°C, stirring for several hours, cold filtn. of yellow solid, washing (cold petroleum ether), recrystn. (-78°C, petroleum ether), elem. anal.; | A 65.6% B n/a |
Conditions | Yield |
---|---|
With aluminium trichloride; polyethoxysilane (silicone GKZh-94) In nitromethane Product distribution; | A 64% B 26% |
Conditions | Yield |
---|---|
With aluminum oxide; silica gel; boron trichloride at 59.85℃; Product distribution; Further Variations:; Reagents; | A 8% B 64% |
Sulfate; tin(IV) oxide at 249.9℃; Product distribution; pulse reactor; catalyst activity studied, prep. of catalyst varied; | A 7.5% B 3% |
aluminum oxide; boron trifluoride at 19.9℃; under 201.02 Torr; Rate constant; different catalytic systems, different BF3-pressure; |
Conditions | Yield |
---|---|
phosphotungstic acid; Al2O3-F; platinum at 310℃; Product distribution; Further Variations:; Catalysts; Temperatures; | A 0.6% B 62.1% C 0.6% |
With tertiary butyl chloride; C9H20N(1+)*Al2Cl7(1-) at 95℃; under 13446.2 Torr; for 4.4h; Time; Reagent/catalyst; Inert atmosphere; | A 30.79% B 21.33% C 8.72% |
aluminum tri-bromide; copper dichloride at 28℃; for 2h; Yield given; |
Conditions | Yield |
---|---|
With hydrogen at 380℃; under 2250.23 Torr; Temperature; | 62% |
With hydrogen; Pt-η-Al2O3-Cl at 200℃; under 15001.2 - 22501.8 Torr; Product distribution; test chlorinated catalysts for the isomerization of C4-C6 alkanes; also other alkanes (n-pentane, hexane fraction and their mixtures); | 53.83% |
With Ga(3+)-modified sulfated zirconia at 190℃; under 760.051 Torr; Reagent/catalyst; Flow reactor; | 30% |
chloroform
butyl magnesium bromide
A
2,4-dimethylpentane
B
Isobutane
Conditions | Yield |
---|---|
With C31H37ClN3NiO2(1-)*Li(1+) In tetrahydrofuran at 25℃; for 0.333333h; Inert atmosphere; Overall yield = 96.3 %; | A 62% B 34.3% |
Conditions | Yield |
---|---|
silica/alumina-supp. -O-W[(C-tBu)(-CH2-tBu)2] at 150℃; under 600 Torr; for 120h; Product distribution; Further Variations:; Catalysts; | A 61.7% B 3.4% C 25.7% D 5.5% |
Isobutane
Conditions | Yield |
---|---|
With water | 61% |
Isobutane
Conditions | Yield |
---|---|
With hydrogen In benzene-d6 at 24.84℃; under 760.051 Torr; Kinetics; Mechanism; Pressure; | 60% |
1-butylene
carbon monoxide
A
methane
B
propane
C
Isobutane
D
n-butane
Conditions | Yield |
---|---|
With hydrogen; dodecacarbonyltetrairidium In various solvent(s) at 175℃; under 760 Torr; Further byproducts given; | A 0.5% B 16% C 59% D 11% |
propene
carbon monoxide
A
methane
B
propane
C
Isobutane
D
n-butane
Conditions | Yield |
---|---|
With hydrogen; dodecacarbonyltetrairidium In various solvent(s) at 175℃; under 760 Torr; Further byproducts given; | A 1% B 17% C 56% D 11% |
n-heptane
A
2-Methylhexane
B
3-methyl-hexane
C
Isobutane
D
methylbutane
Conditions | Yield |
---|---|
With aluminum oxide; silica gel; boron trichloride at 59.85℃; Product distribution; | A n/a B n/a C 13% D 55% |
2,4,6-tri-t-butylphenyl-fluoro-(phenylamino)borane
A
2,4,6-tri-t-butylphenyl-(phenylimino)borane
B
Isobutane
Conditions | Yield |
---|---|
With tert.-butyl lithium In hexane byproducts: LiF; dropping a soln. of t-butyl lithium in n-hexane to a soln. of 2,4,6-tri-t-butylphenyl-fluoro-(phenylamino)borane in n-hexane under N2 at -20°C and allowing to stand overnight; removal of the solvent under reduced pressure and subliming the iminoborane from the residue in an oil pump vacuum, elem. anal.; | A 54% B n/a |
Conditions | Yield |
---|---|
With N-hydroxyphthalimide; air; cobalt acetylacetonate In benzonitrile at 100℃; under 7600 Torr; for 8h; Oxidation; | A 13% B 84% |
With oxygen; azido(tetraphenylporphyrinato) complex of Cr(III) In benzene at 80℃; under 5171.5 Torr; for 6h; | A 0.8 mmol B 6.3 mmol |
Conditions | Yield |
---|---|
With copper(l) iodide; caesium carbonate; ethylenediamine In toluene Reflux; | 83% |
Conditions | Yield |
---|---|
With oxygen Rate constant; Product distribution; var. oxygen pressure; time dependence; | A 20% B 80% |
Isobutane
methyl-d3-propane-1,1,1,3,3,3-d6
Conditions | Yield |
---|---|
With DUSY zeolite at 200℃; Substitution; | 80% |
perfluoropropylene
Isobutane
A
4,4-Dimethyl-1,1,1,2,3,3-hexafluoropentane
Conditions | Yield |
---|---|
With di-tert-butyl peroxide at 140℃; for 24h; Product distribution; Further Variations:; Reagents; Temperatures; time; irradiation; Addition; | A 80% B 3% |
Conditions | Yield |
---|---|
With dichloromethane; antimony pentafluoride 1.) -78 deg C, 2 h, 2.) RT, 24 h; | 76% |
at -15℃; Photochlorierung; | |
at 54℃; bei der photochemischen Chlorierung; | |
at 450 - 500℃; bei der thermischen Chlorierung; |
Conditions | Yield |
---|---|
With tetrakis(tetrabutylammonium)decatungstate(VI) In water; acetonitrile at 20℃; under 7500.75 Torr; for 4h; UV-irradiation; Flow reactor; | 76% |
Conditions | Yield |
---|---|
With antimony pentafluoride; 1,2-dibromomethane 1.) -78 deg C, 2 h, 2.) RT, 24 h; | 75% |
With bromine | |
With bromine | |
With bromine |
Conditions | Yield |
---|---|
oxyhydrogen flame; ratio of i-C4H10/NH3 = 1.07; | 71.8% |
Conditions | Yield |
---|---|
With tetrakis(tetrabutylammonium)decatungstate(VI) In water; acetonitrile at 20℃; under 7500.75 Torr; for 4h; UV-irradiation; Flow reactor; | 71% |
Conditions | Yield |
---|---|
In dichloromethane Product distribution; 1.) -30 deg C, 2.) 17-19 deg C; other alkanes and cycloalkanes and aprotic superacids, also bromobenzene, var. temp. and time; | A 68% B 35% |
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