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Product FOB Price Min.Order Supply Ability Supplier
Isobutylene
Cas No: 115-11-7
USD $ 3.0-3.0 / Kilogram 1 Kilogram 1-100 Metric Ton/Month Dayang Chem (Hangzhou) Co.,Ltd. Contact Supplier
Isobutene
Cas No: 115-11-7
USD $ 1.0-2.0 / Metric Ton 1 Metric Ton 100 Metric Ton/Week Hebei yanxi chemical co.,LTD. Contact Supplier
Isobutylene
Cas No: 115-11-7
No Data No Data No Data Chemwill Asia Co., Ltd. Contact Supplier
Factory Supply 2-methylpropene
Cas No: 115-11-7
No Data 1 1 Ality Chemical Corporation Contact Supplier
Isobutylene / Isobutene
Cas No: 115-11-7
No Data 1 Metric Ton 1000 Metric Ton/Month EAST CHEMSOURCES LIMITED Contact Supplier
Amadis Chemical offer CAS#115-11-7;CAT#A803373
Cas No: 115-11-7
No Data 10 Milligram Amadis Chemical Co., Ltd. Contact Supplier
Isobutylene
Cas No: 115-11-7
No Data 1 Kilogram 1 Metric Ton/Month Henan Tianfu Chemical Co., Ltd. Contact Supplier
1-Propene, 2-methyl-
Cas No: 115-11-7
No Data 1 Kilogram 1 Metric Ton/Day Shandong Hanjiang Chemical Co., Ltd. Contact Supplier
Siberian Ginseng P.E.
Cas No: 115-11-7
No Data 10 Gram 100 Kilogram/Month Wuhan Wonda Pharm Limited Contact Supplier
High quality 1-Propene, 2-methyl- Cas115-11-7 with favorable price and good service
Cas No: 115-11-7
USD $ 100.0-150.0 / Kilogram 1 Kilogram 1000 Metric Ton/Day Wuhan Monad Medicine Tech Co.,LTD Contact Supplier

115-11-7 Usage

Health Hazard

Inhalation of moderate concentrations causes dizziness, drowsiness, and unconsciousness. Contact with eyes or skin may cause irritation; the liquid may cause frostbite.

Hazard

Highly flammable, dangerous fire and explosion risk, explosive limits in air 1.8–8.8%.

Purification Methods

Dry isobutene by passage through anhydrous CaSO4 at 0o. Purify it further by freeze-pump-thaw cycles and trap-to-trap distillation. [Beilstein 1 IV 796.]

Uses

Primarily used to produce diisobutylene, trimers, butyl rubber, and other polymers; also to produce antioxidants for foods, packaging, food supplements, and for plastics: Hatch, Pet. Refin. 39, No. 6, 207 (1960).

General Description

ISOBUTYLENE is a colorless gas with a faint petroleum-like odor. For transportation ISOBUTYLENE may be stenched. ISOBUTYLENE is shipped as a liquefied gas under its own vapor pressure. Contact with the liquid can cause frostbite. ISOBUTYLENE is easily ignited. Its vapors are heavier than air and a flame can flash back to the source of leak very easily. The leak can either be a liquid or vapor leak. ISOBUTYLENE can asphyxiate by the displacement of air. Under prolonged exposure to fire or heat the containers may rupture violently and rocket. ISOBUTYLENE is used in the production of isooctane, a high octane aviation gasoline.

Physical properties

Colorless gas with a coal gas-like odor. The odor threshold concentration is 10 ppmv Nagata and Takeuchi (1990).

Production Methods

Isobutene is produced in refinery streams by absorption on 65% H2SO4 at about 15C, or by reacting with an aliphatic primary alcohol and then hydrolyzing the resulting ether.

Source

Schauer et al. (2001) measured organic compound emission rates for volatile organic compounds, gas-phase semi-volatile organic compounds, and particle-phase organic compounds from the residential (fireplace) combustion of pine, oak, and eucalyptus. The gas-phase emission rate of 2-methylpropene was 40.1 mg/kg of pine burned. Emission rates of 2-methylbutene were not measured during the combustion of oak and eucalyptus. California Phase II reformulated gasoline contained 2-methylpropene at a concentration of 170 mg/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 15.6 and 427 mg/km, respectively (Schauer et al., 2002).

Carcinogenicity

Groups of 50 male and 50 female F344/N rats were exposed to isobutene at concentrations of 0, 500, 2000, or 8000 ppm6 h/day 5 days/week for 105 weeks. Groups of 50 male and 50 female B6C3F1 mice were exposed to isobutene at concentrations of 0, 500, 2000, or 8000 ppm 6 h/day, 5 days/week for 105 weeks. Under the conditions of these 2 year inhalation studies, there was some evidence of the carcinogenic activity of isobutene in male F344/N rats based on an increased incidence of follicular cell carcinoma of the thyroid gland. There was no evidence of the carcinogenic activity of isobutene in female F344/N rats or male or female B6C3F1 mice exposed to 500, 2000, or 8000 ppm.

Environmental fate

Photolytic. Products identified from the photoirradiation of 2-methylpropene with nitrogen dioxide in air are 2-butanone, 2-methylpropanal, acetone, carbon monoxide, carbon dioxide, methanol, methyl nitrate, and nitric acid (Takeuchi et al., 1983). Similarly, products identified from the reaction of 2-methylpropene with ozone included acetone, formaldehyde, methanol, carbon monoxide, carbon dioxide, and methane (Tuazon et al., 1997). The following rate constants were reported for the reaction of 2-methylpropene and OH radicals in the atmosphere: 3.0 x 10-13 cm3/molecule?sec at 300 K (Hendry and Kenley, 1979); 5.40 x 10-11 cm3/molecule?sec (Atkinson et al., 1979); 5.14 x 10-11 at 298 K (Atkinson, 1990). Reported reaction rate constants for 2-methylpropene and ozone in the atmosphere include 2.3 x 10-19 cm3/molecule?sec (Bufalini and Altshuller, 1965); 1.17 x 10-19 cm3/molecule?sec at 300 K (Adeniji et al., 1965); 1.21 x 10-17 cm3/molecule?sec at 298 K (Atkinson, 1990). Chemical/Physical. Complete combustion in air yields carbon dioxide and water. Incomplete combustion yields carbon monoxide.

Reactivity Profile

ISOBUTYLENE is incompatible with oxidizers. ISOBUTYLENE polymerizes easily. ISOBUTYLENE reacts easily with numerous materials, such as alkyl halides, halogens, concentrated sulfuric acid, hypochlorous acid, aluminum chloride, carbon monoxide and hydrogen with a cobalt catalyst. Polymerization is catalyzed by aluminum chloride and boron trifluoride.

Definition

ChEBI: An alkene that is prop-1-ene substituted by a methyl group at position 2.

Fire Hazard

Behavior in Fire: Containers may explode in fire. Vapor is heavier than air and may travel a long distance to a source of ignition and flash back.

Air & Water Reactions

Highly flammable.

Solubility in water

(mole fraction):In 1-butanol: 0.131, 0.0695, and 0.0458 at 25, 30, and 70 °C, respectively; chlorobenzene: 0.234, 0.132, and 0.0796 at 25, 30, and 70 °C, respectively; octane: 0.333, 0.184, and 0.119 at 25, 30, and 70 °C, respectively (Hayduk et al., 1988).

Solubility in organics

(mole fraction):In 1-butanol: 0.131, 0.0695, and 0.0458 at 25, 30, and 70 °C, respectively; chlorobenzene: 0.234, 0.132, and 0.0796 at 25, 30, and 70 °C, respectively; octane: 0.333, 0.184, and 0.119 at 25, 30, and 70 °C, respectively (Hayduk et al., 1988).
InChI:InChI=1/C4H8/c1-4(2)3/h1H2,2-3H3

115-11-7 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
TCI America (I0909)  Isobutene (ca. 8% in Dichloromethane)   115-11-7 100mL 400.00CNY Detail
TCI America (I0909)  Isobutene (ca. 8% in Dichloromethane)   115-11-7 500mL 1,280.00CNY Detail
TCI America (I0910)  Isobutene (ca. 10% in Isopropyl Ether)   115-11-7 100mL 310.00CNY Detail
TCI America (I0910)  Isobutene (ca. 10% in Isopropyl Ether)   115-11-7 500mL 980.00CNY Detail
TCI America (I0911)  Isobutene (ca. 15% in Tetrahydrofuran)   115-11-7 100mL 310.00CNY Detail
TCI America (I0911)  Isobutene (ca. 15% in Tetrahydrofuran)   115-11-7 500mL 980.00CNY Detail
Aldrich (295469)  2-Methylpropene  99% 115-11-7 295469-450G-EU 9,477.00CNY Detail

115-11-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 10, 2017

Revision Date: Aug 10, 2017

1.Identification

1.1 GHS Product identifier

Product name Isobutene

1.2 Other means of identification

Product number -
Other names Propene,2-methyl

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Adhesives and sealant chemicals,Fuels and fuel additives,Intermediates,Lubricants and lubricant additives,Solvents (which become part of product formulation or mixture)
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:115-11-7 SDS

115-11-7Synthetic route

tert-butyl alcohol
75-65-0

tert-butyl alcohol

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
With air oxidized carbon nanotubes at 120℃; Kinetics; Reagent/catalyst; Temperature; Flow reactor; Inert atmosphere; chemoselective reaction;100%
With aminosulfonic acid In acetic anhydride at 80℃; for 0.5h; Dehydration;98%
niobium silicate at 250℃;98.9%
cyclohexane
110-82-7

cyclohexane

1,1,3,3-tetramethyl-2,3-dihydro-1H-isoindol-2-yloxoyl radical
80037-90-7

1,1,3,3-tetramethyl-2,3-dihydro-1H-isoindol-2-yloxoyl radical

2-(t-butylazo)prop-2-yl hydroperoxide
37421-16-2

2-(t-butylazo)prop-2-yl hydroperoxide

A

2-cyclohexyloxy-1,1,3,3-tetramethyl-2,3-dihydro-1H-isoindole
89482-40-6

2-cyclohexyloxy-1,1,3,3-tetramethyl-2,3-dihydro-1H-isoindole

B

2-tert-butoxy-1,1,3,3-tetramethylisoindoline
93524-81-3

2-tert-butoxy-1,1,3,3-tetramethylisoindoline

C

acetone
67-64-1

acetone

D

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
at 70℃; for 17h; Mechanism; Rate constant; Thermodynamic data; var. of nitroxide, solvent, temp., EA, ΔH(excit.), ΔS(excit.);A 96%
B 82%
C 100%
D 15%
4-(bromomethylene)-2-(tert-butylthio)-1,3-dithiolylium bromide
71988-81-3

4-(bromomethylene)-2-(tert-butylthio)-1,3-dithiolylium bromide

A

4-(bromomethylene)-1,3-dithiolane-2-thione
71988-82-4

4-(bromomethylene)-1,3-dithiolane-2-thione

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
for 12h; Ambient temperature;A 100%
B n/a
2-(Di-tert-butylamino)-1,3-di-tert-butyl-2,4,4-dimethyl-1,3,2,4-diazaphosphasiletidinium-iodid

2-(Di-tert-butylamino)-1,3-di-tert-butyl-2,4,4-dimethyl-1,3,2,4-diazaphosphasiletidinium-iodid

A

2-(tert-Butylamino)-1,3-di-tert-butyl-2,4,4-trimethyl-1,3,2,4-diazaphosphasiletidinium-iodid

2-(tert-Butylamino)-1,3-di-tert-butyl-2,4,4-trimethyl-1,3,2,4-diazaphosphasiletidinium-iodid

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
In acetonitrile for 0.0833333h; Heating;A 100%
B n/a
2--1,3-di-tert-butyl-2,4,4-dimethyl-1,3,2,4-diazaphosphasiletidinium-iodid

2--1,3-di-tert-butyl-2,4,4-dimethyl-1,3,2,4-diazaphosphasiletidinium-iodid

A

2-(Trimethylsilylamino)-1,3-di-tert-butyl-2,4,4-trimethyl-1,3,2,4-diazaphosphasiletidinium-iodid

2-(Trimethylsilylamino)-1,3-di-tert-butyl-2,4,4-trimethyl-1,3,2,4-diazaphosphasiletidinium-iodid

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
In acetonitrile for 0.0833333h; Heating;A 100%
B n/a

A

B

Conditions
ConditionsYield
With diisobutylaluminium hydride In pentane at 25℃; for 0.5h;A n/a
B 100%
Conditions
ConditionsYield
With 15-crown-5; cesium fluoride In 1,2-dimethoxyethane at -18 - 20℃; for 1h;100%

A

1-Methyl-2-cyclopenten-1-ol

1-Methyl-2-cyclopenten-1-ol

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
With Hoveyda-Grubbs catalyst second generation at 20℃; for 0.75h; Neat (no solvent); Inert atmosphere;A 100%
B n/a
With C35H46Cl2N2ORu In benzene-d6 at 60℃; Catalytic behavior; Reagent/catalyst; Sealed tube;
t-butyl bromide
507-19-7

t-butyl bromide

tri-tert-butyl phosphine
13716-12-6

tri-tert-butyl phosphine

4,8,12-trioxatriangulenium tetrakis[3,5-bis(trifluoromethyl)phenyl]-borate

4,8,12-trioxatriangulenium tetrakis[3,5-bis(trifluoromethyl)phenyl]-borate

A

C19H9BrO3

C19H9BrO3

B

isobutene
115-11-7

isobutene

C

C32H12BF24(1-)*C12H27P*H(1+)

C32H12BF24(1-)*C12H27P*H(1+)

Conditions
ConditionsYield
In acetonitrile at 20℃;A 100%
B n/a
C 100%
tert-butyl methyl ether
1634-04-4

tert-butyl methyl ether

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
at 220℃; under 1200.12 Torr;99.95%
98.4%
shaped catalyst (68percent SiO2, 21percent Al2O3, 11percent MgO, 0.11percent Na2O) at 164 - 250℃; under 5250.53 Torr; for 4000h; Conversion of starting material;
4,4'-dihydroxy-3,3',5,5'-tetra-tert-butylbiphenyl
128-38-1

4,4'-dihydroxy-3,3',5,5'-tetra-tert-butylbiphenyl

A

4,4'-Dihydroxybiphenyl
92-88-6

4,4'-Dihydroxybiphenyl

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
With methanesulfonic acid In isopar-G (hydrocarbons C10-C11); toluene at 150℃; for 2h;A 99%
B n/a
tris(1-pyrrolidinyl)(tert-butyl)phosphazide

tris(1-pyrrolidinyl)(tert-butyl)phosphazide

A

tris(1-pyrrolidinyl)(amino)phosphonium tetrafluoroborate

tris(1-pyrrolidinyl)(amino)phosphonium tetrafluoroborate

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
With tetrafluoroboric acid In methanol; water at -78 - 20℃; for 2h;A 99%
B n/a
3-acetoxyacetonyl tert-butyl trithiocarbonate
72030-06-9

3-acetoxyacetonyl tert-butyl trithiocarbonate

A

4-(acetoxymethyl)-1,3-dithiole-2-thione
71988-79-9

4-(acetoxymethyl)-1,3-dithiole-2-thione

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
With toluene-4-sulfonic acid In acetic acid; trifluoroacetic acid 1. warming, 30 min; 2. heating, 30 min;A 98%
B n/a
2-Amino-4-benzylamino-4,6,6-trimethyl-cyclohex-2-ene-1,1,3-tricarbonitrile
80372-21-0

2-Amino-4-benzylamino-4,6,6-trimethyl-cyclohex-2-ene-1,1,3-tricarbonitrile

A

3-Amino-4-[1-benzylamino-eth-(Z)-ylidene]-2-cyano-pent-2-enedinitrile
80372-33-4

3-Amino-4-[1-benzylamino-eth-(Z)-ylidene]-2-cyano-pent-2-enedinitrile

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
In xylene for 1h; Heating;A 98%
B n/a
triisopropylsilanol
17877-23-5

triisopropylsilanol

(2-methylallyl )triisopropylsilane
321887-70-1

(2-methylallyl )triisopropylsilane

A

hexaisopropyldisiloxane

hexaisopropyldisiloxane

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
With scandium tris(trifluoromethanesulfonate) In acetonitrile at 20℃; for 1h;A 98%
B n/a
C11H24O2

C11H24O2

A

isobutene
115-11-7

isobutene

B

trimethyleneglycol
504-63-2

trimethyleneglycol

Conditions
ConditionsYield
With A35 resin acid at 100℃; for 2h; Temperature; Reagent/catalyst;A n/a
B 98%
2,6-dimethyl-4-tert-butylphenol
879-97-0

2,6-dimethyl-4-tert-butylphenol

A

2.6-dimethylphenol
576-26-1

2.6-dimethylphenol

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
aluminum oxide; nickel(II) sulphate In various solvent(s) at 305℃; Product distribution; fixed, quartz powder bed tubular reactor; gaseous phase in N2 flow; varied: temperature 280 to 330 deg C; N2 flow; quartz powder/catalyst ratio; residence time; substrates other alkylated phenols too;A 97.5%
B n/a
butene-2
107-01-7

butene-2

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
at 450℃; under 1125.11 Torr; Reagent/catalyst; Pressure; Temperature; Inert atmosphere;97.4%
at 200 - 380℃; Umlagerung in Gegenwart verschiedener Katalysatoren;
2-methylallyllithium
61777-16-0

2-methylallyllithium

A

1,3-dilithio-2-methylenepropane
53721-69-0

1,3-dilithio-2-methylenepropane

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
at 135℃; for 24h; Yield given;A n/a
B 97%
triisopropylsilanol
17877-23-5

triisopropylsilanol

(2-methylallyl)-dimethylvinylsilane
1351415-92-3

(2-methylallyl)-dimethylvinylsilane

A

1,1-dimethyl-3,3,3-triisopropyl-1-vinyldisiloxane
1351415-84-3

1,1-dimethyl-3,3,3-triisopropyl-1-vinyldisiloxane

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
With scandium tris(trifluoromethanesulfonate) In acetonitrile at 20℃; for 1h;A 97%
B n/a
dibutylbis(2-methylallyl)germane
87513-88-0

dibutylbis(2-methylallyl)germane

C32H74O13Si8

C32H74O13Si8

A

di(n-butyl)germasilsesquioxane

di(n-butyl)germasilsesquioxane

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
With scandium tris(trifluoromethanesulfonate) In toluene at 20℃; for 2h;A 97%
B n/a
tert-butyl alcohol
75-65-0

tert-butyl alcohol

A

2-methyl-propan-1-ol
78-83-1

2-methyl-propan-1-ol

B

water
7732-18-5

water

C

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
aluminum oxide at 315.546℃; under 11103.3 Torr;A 1.4%
B 1.1%
C 96.4%
2-methyl-propan-1-ol
78-83-1

2-methyl-propan-1-ol

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
BASF AL3996 at 300℃; under 760.051 Torr; Product distribution / selectivity;96%
With BASF A13996R at 325℃; Flow reactor;95%
at 340℃; under 780.078 Torr; Catalytic behavior; Temperature; Pressure; Reagent/catalyst; Inert atmosphere;94.35%
triisobutylindium
6731-23-3

triisobutylindium

A

indium
7440-74-6

indium

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
In decalin byproducts: isobutane; pyrolysis in decalin under dry and deoxygenated N2 (140°C, 24 h); GLC anal. of org. products;A >99
B 96%
di(2-methylallyl)diethylgermane

di(2-methylallyl)diethylgermane

C28H64O13Si8

C28H64O13Si8

A

C60H136GeO26Si16

C60H136GeO26Si16

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
With scandium tris(trifluoromethanesulfonate) In toluene at 20℃; for 2h;A 96%
B n/a
1,3-Diamino-2,6,6-tricyan-3,5,5-trimethyl-cyclohex-1-en
80372-13-0

1,3-Diamino-2,6,6-tricyan-3,5,5-trimethyl-cyclohex-1-en

A

2,4-Diamino-1,1,3-tricyan-penta-1,3-dien
80372-25-4

2,4-Diamino-1,1,3-tricyan-penta-1,3-dien

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
In decalin for 1h; Heating;A 95%
B n/a
2-Amino-4,6,6-trimethyl-4-methylamino-cyclohex-2-ene-1,1,3-tricarbonitrile
80372-17-4

2-Amino-4,6,6-trimethyl-4-methylamino-cyclohex-2-ene-1,1,3-tricarbonitrile

A

3-Amino-2-cyano-4-[1-methylamino-eth-(Z)-ylidene]-pent-2-enedinitrile
80372-29-8

3-Amino-2-cyano-4-[1-methylamino-eth-(Z)-ylidene]-pent-2-enedinitrile

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
In xylene for 1h; Heating;A 95%
B n/a
tri(tert-butyl)phosphite
15205-62-6

tri(tert-butyl)phosphite

acrylic acid
79-10-7

acrylic acid

A

di-tert-butyl phosphite
13086-84-5

di-tert-butyl phosphite

B

3-(di-tert-butoxyphosphoryl)propionic acid

3-(di-tert-butoxyphosphoryl)propionic acid

C

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
In dichloromethane for 2h; Heating;A 95%
B n/a
C n/a
1,1,1,5,5,5-hexamethyl-3-trimethylsiloxy-3-hydroxytrisiloxane
17477-97-3

1,1,1,5,5,5-hexamethyl-3-trimethylsiloxy-3-hydroxytrisiloxane

(2-methylallyl)-dimethylvinylsilane
1351415-92-3

(2-methylallyl)-dimethylvinylsilane

A

1,1,1,5,5-pentamethyl-5-vinyl-3,3-bis(trimethylsiloxy)-trisiloxane
1351415-83-2

1,1,1,5,5-pentamethyl-5-vinyl-3,3-bis(trimethylsiloxy)-trisiloxane

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
With scandium tris(trifluoromethanesulfonate) In acetonitrile at 20℃; for 1h;A 95%
B n/a
triisopropylsilanol
17877-23-5

triisopropylsilanol

2-methyl a l l y l t r i s-(trimethylsiloxy)silane
37611-52-2

2-methyl a l l y l t r i s-(trimethylsiloxy)silane

A

1,1,1-trimethyl-5,5,5-triisopropyl-3,3-bis(trimethyl-siloxy)trisiloxane
1351415-86-5

1,1,1-trimethyl-5,5,5-triisopropyl-3,3-bis(trimethyl-siloxy)trisiloxane

B

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
With scandium tris(trifluoromethanesulfonate) In acetonitrile at 20℃; for 1h;A 95%
B n/a
3,4-Dimethylphenol
95-65-8

3,4-Dimethylphenol

isobutene
115-11-7

isobutene

2-(1,1-dimethylethyl)-4,5-dimethylphenol
1445-23-4

2-(1,1-dimethylethyl)-4,5-dimethylphenol

Conditions
ConditionsYield
With sulfuric acid at 65℃; under 1034.3 Torr; for 3h;100%
With sulfuric acid at 70℃;
sulfuric acid at 65℃; under 1520.1 Torr;
With sulfuric acid at 65 - 70℃; for 2h;114.1 g
methyl (2S,3R)-2-(benzyloxycarbonylamino)-3-hydroxybutyrate
57224-63-2

methyl (2S,3R)-2-(benzyloxycarbonylamino)-3-hydroxybutyrate

isobutene
115-11-7

isobutene

N-benzyloxycarbonyl-O-tert-butylthreonine methyl ester
52785-41-8

N-benzyloxycarbonyl-O-tert-butylthreonine methyl ester

Conditions
ConditionsYield
With sulfuric acid In dichloromethane at 0℃; for 48h;100%
With sulfuric acid In dichloromethane for 72h; Ambient temperature;75%
With sulfuric acid In dichloromethane
propargyl alcohol
107-19-7

propargyl alcohol

isobutene
115-11-7

isobutene

1-Bromo-2-methyl-2-(2-propyn-1-yloxy)propane
118616-26-5

1-Bromo-2-methyl-2-(2-propyn-1-yloxy)propane

Conditions
ConditionsYield
With N-Bromosuccinimide at 0℃; for 1h;100%
With N-Bromosuccinimide In dichloromethane 1.) -20 deg C, 2 h, 2.) r.t., 15 h;80%
methanol
67-56-1

methanol

pyridine-2-selenenyl bromide
91491-61-1

pyridine-2-selenenyl bromide

isobutene
115-11-7

isobutene

2-(2-Methoxy-2-methyl-propylselanyl)-pyridine
96818-34-7

2-(2-Methoxy-2-methyl-propylselanyl)-pyridine

Conditions
ConditionsYield
at 25℃; for 2h;100%
(S)-2-chloropropanoic acid
29617-66-1

(S)-2-chloropropanoic acid

isobutene
115-11-7

isobutene

(S)-tert-butyl 2-chloropropanoate
101617-24-7

(S)-tert-butyl 2-chloropropanoate

Conditions
ConditionsYield
With hydrogen cation100%
With hydrogen cation93%
With sulfuric acid In dichloromethane at 20℃; for 48h;73%
(E)-ethyl 4-hydroxybut-2-enoate
10080-68-9

(E)-ethyl 4-hydroxybut-2-enoate

isobutene
115-11-7

isobutene

ethyl 4-tert-butoxycrotonate
124155-67-5

ethyl 4-tert-butoxycrotonate

Conditions
ConditionsYield
With sulfuric acid In dichloromethane for 36h; Ambient temperature;100%
O,O′-diacetyl L-tartaric acid
51591-38-9

O,O′-diacetyl L-tartaric acid

isobutene
115-11-7

isobutene

O,O′-diacetyl di-tert-butyl L-tartrate
117384-47-1

O,O′-diacetyl di-tert-butyl L-tartrate

Conditions
ConditionsYield
With sulfuric acid In dichloromethane at -15 - 20℃; for 72h;100%
cumenyl chloride
934-53-2

cumenyl chloride

isobutene
115-11-7

isobutene

(3-chloro-1,1,3-trimethylbutyl)benzene
84803-23-6

(3-chloro-1,1,3-trimethylbutyl)benzene

Conditions
ConditionsYield
With 2,6-di-tert-butyl-pyridine; boron trichloride In various solvent(s) at -80℃; for 0.666667h;100%
zinc chloride diethyl ether In dichloromethane at -78℃; for 4h;71%
(2R,3S)-2-Methoxymethoxy-3-((3S,8S,9S,10R,13S,14S,17R)-3-methoxymethoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-butyraldehyde
90830-69-6

(2R,3S)-2-Methoxymethoxy-3-((3S,8S,9S,10R,13S,14S,17R)-3-methoxymethoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-butyraldehyde

isobutene
115-11-7

isobutene

(4R,5R,6S)-5-Methoxymethoxy-6-((3S,8S,9S,10R,13S,14S,17R)-3-methoxymethoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-methyl-hept-1-en-4-ol
131434-15-6

(4R,5R,6S)-5-Methoxymethoxy-6-((3S,8S,9S,10R,13S,14S,17R)-3-methoxymethoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-methyl-hept-1-en-4-ol

Conditions
ConditionsYield
With tin(IV) chloride In dichloromethane at -78℃; for 5h;100%
2-oxo-3-(ethoxycarbonyl)-3,4-dihydro-β-carboline
106544-20-1

2-oxo-3-(ethoxycarbonyl)-3,4-dihydro-β-carboline

isobutene
115-11-7

isobutene

2,2-dimethyl-5-(ethoxycarbonyl)-4,5,6,11b-tetrahydroisoxazolidino<2,3-a>-β-carboline
99708-07-3

2,2-dimethyl-5-(ethoxycarbonyl)-4,5,6,11b-tetrahydroisoxazolidino<2,3-a>-β-carboline

Conditions
ConditionsYield
In toluene at 120℃; under 750.06 - 6750.5 Torr; for 4h;100%
(E)-4-Methyl-6-trimethylsilanyl-hex-4-enal
80399-40-2

(E)-4-Methyl-6-trimethylsilanyl-hex-4-enal

isobutene
115-11-7

isobutene

geranyltrimethylsilane
80399-43-5

geranyltrimethylsilane

Conditions
ConditionsYield
With Wittig100%
3-cyclohexyl-D-alanine
58717-02-5

3-cyclohexyl-D-alanine

isobutene
115-11-7

isobutene

(R)-2-Amino-3-cyclohexyl-propionic acid tert-butyl ester
193286-94-1

(R)-2-Amino-3-cyclohexyl-propionic acid tert-butyl ester

Conditions
ConditionsYield
With sulfuric acid In 1,4-dioxane100%
isobutene
115-11-7

isobutene

polyisobutylene, Mn 5200, cationic polymerization

polyisobutylene, Mn 5200, cationic polymerization

Conditions
ConditionsYield
With Acetyl bromide; MeCOBr*2AlBr3 In dichloromethane at -78℃; for 0.333333h; Polymerization;100%
isobutene
115-11-7

isobutene

polyisobutylene, Mn 41900, cationic polymerization

polyisobutylene, Mn 41900, cationic polymerization

Conditions
ConditionsYield
With aluminum tri-bromide; 2,4,6-Me3C6H2COBr*2AlBr3; Mesitoyl bromide In hexane at -78℃; for 0.333333h; Polymerization;100%
isobutene
115-11-7

isobutene

polyisobutylene, Mn 132000, cationic polymerization

polyisobutylene, Mn 132000, cationic polymerization

Conditions
ConditionsYield
With Acetyl bromide; MeCOBr*2AlBr3; 2,3-dibromo-5,6-dicyano-1,4-benzoquinone In hexane at -78℃; for 0.333333h; Polymerization;100%
isobutene
115-11-7

isobutene

1-benzyloxycarbonyl-4-keto-L-proline
64187-47-9

1-benzyloxycarbonyl-4-keto-L-proline

(2S)-4-oxo-1-phenylmethoxycarbonylpyrrolidine-2-carboxylic acid tert-butyl ester
147489-27-8

(2S)-4-oxo-1-phenylmethoxycarbonylpyrrolidine-2-carboxylic acid tert-butyl ester

Conditions
ConditionsYield
With sulfuric acid In dichloromethane for 12h; Cooling with ice;100%
With sulfuric acid In dichloromethane at 20℃; for 16h;80%
With sulfuric acid In dichloromethane at 20℃; for 16h;80%
isobutene
115-11-7

isobutene

polyisobutylene; monomer: isobutylene

polyisobutylene; monomer: isobutylene

Conditions
ConditionsYield
With tetrachloromethane; triisobutylaluminum; titanium tetrachloride In toluene at 30℃; Polymerization;100%
2-hydroxyphenyl benzoate
5876-92-6

2-hydroxyphenyl benzoate

isobutene
115-11-7

isobutene

2-tert-butoxyphenyl benzoate
136864-81-8

2-tert-butoxyphenyl benzoate

Conditions
ConditionsYield
With trifluorormethanesulfonic acid In dichloromethane at -50 - -45℃; for 2.5h;100%
With trifluorormethanesulfonic acid70%
7,7-diphenyl-6-heptenoic acid
122213-92-7

7,7-diphenyl-6-heptenoic acid

isobutene
115-11-7

isobutene

tert-butyl 7,7-diphenylhept-6-enoate
1038793-13-3

tert-butyl 7,7-diphenylhept-6-enoate

Conditions
ConditionsYield
With sulfuric acid In dichloromethane at 20℃;100%
isobutene
115-11-7

isobutene

polyisobutylene, Mw 285000, Mw/Mn 2.4; monomer(s): isobutylene

polyisobutylene, Mw 285000, Mw/Mn 2.4; monomer(s): isobutylene

Conditions
ConditionsYield
With 1,2-C6F4(B(C(C6F5)2)2 In hexane at -78℃; for 1h;100%
isobutene
115-11-7

isobutene

polyisobutylene, Mw 195000, Mw/Mn 3.2; monomer(s): isobutylene

polyisobutylene, Mw 195000, Mw/Mn 3.2; monomer(s): isobutylene

Conditions
ConditionsYield
With 1,2-C6F4(B(C(C6F5)2)2 In hexane at -78℃; for 1h;100%
isobutene
115-11-7

isobutene

polyisobutylene, Mw 132000, Mw/Mn 5.7; monomer(s): isobutylene

polyisobutylene, Mw 132000, Mw/Mn 5.7; monomer(s): isobutylene

Conditions
ConditionsYield
With 1,2-C6F4(B(C(C6F5)2)2 In hexane at -78℃; for 1h;100%
isobutene
115-11-7

isobutene

polyisobutylene, Mw 140000, Mw/Mn 3.8; monomer(s): isobutylene

polyisobutylene, Mw 140000, Mw/Mn 3.8; monomer(s): isobutylene

Conditions
ConditionsYield
With 1,2-C6F4(B(C(C6F5)2)2 In hexane at -78℃; for 1h;100%
isobutene
115-11-7

isobutene

polyisobutylene, Mw 257000, Mw/Mn 2.0; monomer(s): isobutylene

polyisobutylene, Mw 257000, Mw/Mn 2.0; monomer(s): isobutylene

Conditions
ConditionsYield
With 1,2-C6F4(B(C(C6F5)2)2 In hexane at -78℃; for 1h;100%

115-11-7Related news

Polymerization of ISOBUTYLENE (cas 115-11-7) and copolymerization of ISOBUTYLENE (cas 115-11-7) with isoprene promoted by methylalumoxane07/21/2019

Methylalumoxane (MAO) is an active pre-catalyst for the polymerization of isobutylene and the copolymerization of isobutylene with isoprene at ambient temperature. The absence of any proton-containing substances suggests that the solvent dichloromethane reacts with the MAO forming the active cat...detailed

Quest for pore size effect on the catalytic property of defect-engineered MOF-808-SO4 in the addition reaction of ISOBUTYLENE (cas 115-11-7) with ethylene glycol07/19/2019

In this article, we use defect engineering approach to fine-tune the pore size of MOF-808-SO4. A series of defective MOF-808-SO4 with different pore size were prepared by varying the amount of isophthalic acid as the defective ligand during the synthesis. We obtained a linear correlation between...detailed

Aqueous gelcasting of solid-state-sintered SiC ceramics with the addition of the copolymer of ISOBUTYLENE (cas 115-11-7) and maleic anhydride07/16/2019

As a nontoxic and eco-friendly gelling agent, the copolymer of isobutylene and maleic anhydride (PIBM) was successfully used for aqueous gelcasting of dense solid-state-sintered SiC (S-SiC) ceramics. We acquired low-viscosity SiC-B4C-C slurry with an ultrahigh solid loading of 55 vol% through a ...detailed

Effect of Si/Al ratio of high-silica HZSM-5 catalysts on the prins condensation of ISOBUTYLENE (cas 115-11-7) and formaldehyde to isoprene07/15/2019

A series of HZSM-5 catalysts with different Si/Al ratio were prepared and characterized with various characteristic methods XRD, BET, NH3-TPD, FT-IR spectra of adsorbed pyridine, etc. The effect of Si/Al ratio of HZSM-5 catalysts on the prins condensation of isobutylene and formaldehyde to isopr...detailed

Addition and abstraction kinetics of H atom with propylene and ISOBUTYLENE (cas 115-11-7) between 200 and 2500 K: A DFT study07/14/2019

The rate coefficients for the reactions of hydrogen (H) atom with propylene and isobutylene were studied at M06-2X/6-31+G(d,p) and MPWB1K/6-31+G(d,p) level of theories between 200 and 2500 K. The possible mechanism for the reactions of propylene and isobutylene with H atom were examined. The rat...detailed

Direct amination of ISOBUTYLENE (cas 115-11-7) over zeolite catalysts with various topologies and acidities07/13/2019

The atomically economic and green chemical reaction of direct amination of isobutylene to tert-butylamine, particularly under the relative mild reaction conditions available for future industrial use, was carried out over zeolite catalysts possessing different topological structures, from one di...detailed

Thermodynamic study of direct amination of ISOBUTYLENE (cas 115-11-7) to tert-butylamine07/12/2019

On basis of thermodynamic empirical equations, the thermodynamic parameters for the direct amination of isobutylene to tert-butylamine, an atomically economic and green chemical reaction, were calculated. In particular, the equilibrium conversion of isobutylene under various reaction conditions ...detailed

A wood-rot fungus-mediated production of ISOBUTYLENE (cas 115-11-7) from isobutanol07/11/2019

Generally, isobutylene is produced by petroleum-derived chemical processes, but manufacturing methods using renewable sources, such as biomass, have been considered because of limited amounts of fossil fuel and environmental issues. In this study, isobutylene was converted from isobutanol throug...detailed

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