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79917-90-1

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  • China Largest factory Manufacturer Supply 1-Butyl-3-methylimidazolium chloride CAS 79917-90-1

    Cas No: 79917-90-1

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79917-90-1 Usage

Chemical Properties

cream-colored to yellow mass

Uses

Different sources of media describe the Uses of 79917-90-1 differently. You can refer to the following data:
1. 1-Butyl-3-methylimidazolium chloride can be used as a precursor for the preparation of other ionic liquids by anion metathesis.
2. 1-Butyl-3-methylimidazolium chloride in combination with aluminium chloride forms an organoaluminate molten salt, which can act as an acidic catalyst for the alkylation of isobutane with 2-butene.

General Description

1-Butyl-3-methylimidazolium chloride is an imidazolium based ionic liquid.

Check Digit Verification of cas no

The CAS Registry Mumber 79917-90-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,9,1 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 79917-90:
(7*7)+(6*9)+(5*9)+(4*1)+(3*7)+(2*9)+(1*0)=191
191 % 10 = 1
So 79917-90-1 is a valid CAS Registry Number.
InChI:InChI=1/C8H15N2/c1-3-4-5-10-7-6-9(2)8-10/h6-8H,3-5H2,1-2H3/q+1

79917-90-1 Well-known Company Product Price

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  • TCI America

  • (B2194)  1-Butyl-3-methylimidazolium Chloride  >98.0%(HPLC)(T)

  • 79917-90-1

  • 5g

  • 165.00CNY

  • Detail
  • TCI America

  • (B2194)  1-Butyl-3-methylimidazolium Chloride  >98.0%(HPLC)(T)

  • 79917-90-1

  • 25g

  • 395.00CNY

  • Detail
  • TCI America

  • (B2194)  1-Butyl-3-methylimidazolium Chloride  >98.0%(HPLC)(T)

  • 79917-90-1

  • 100g

  • 1,120.00CNY

  • Detail
  • Alfa Aesar

  • (L19749)  1-n-Butyl-3-methylimidazolium chloride, 96%   

  • 79917-90-1

  • 10g

  • 476.0CNY

  • Detail
  • Alfa Aesar

  • (L19749)  1-n-Butyl-3-methylimidazolium chloride, 96%   

  • 79917-90-1

  • 50g

  • 1137.0CNY

  • Detail
  • Sigma-Aldrich

  • (04129)  1-Butyl-3-methylimidazoliumchloride  ≥99.0% (HPLC)

  • 79917-90-1

  • 04129-5G-F

  • 1,191.06CNY

  • Detail
  • Sigma-Aldrich

  • (04129)  1-Butyl-3-methylimidazoliumchloride  ≥99.0% (HPLC)

  • 79917-90-1

  • 04129-25G-F

  • 4,098.51CNY

  • Detail
  • Aldrich

  • (94128)  1-Butyl-3-methylimidazoliumchloride  ≥98.0% (HPLC)

  • 79917-90-1

  • 94128-5G

  • 615.42CNY

  • Detail
  • Aldrich

  • (94128)  1-Butyl-3-methylimidazoliumchloride  ≥98.0% (HPLC)

  • 79917-90-1

  • 94128-50G

  • 1,091.61CNY

  • Detail
  • Aldrich

  • (94128)  1-Butyl-3-methylimidazoliumchloride  ≥98.0% (HPLC)

  • 79917-90-1

  • 94128-250G

  • 3,397.68CNY

  • Detail
  • Aldrich

  • (38899)  1-Butyl-3-methylimidazoliumchloride  ≥98.0% (HPLC)

  • 79917-90-1

  • 38899-100G-F

  • 1,028.43CNY

  • Detail
  • Aldrich

  • (38899)  1-Butyl-3-methylimidazoliumchloride  ≥98.0% (HPLC)

  • 79917-90-1

  • 38899-1KG-F

  • 2,882.88CNY

  • Detail

79917-90-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-Butyl-3-methylimidazolium chloride

1.2 Other means of identification

Product number -
Other names 1-butyl-3-methylimidazol-3-ium,chloride

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
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:79917-90-1 SDS

79917-90-1Synthetic route

1-methyl-1H-imidazole
616-47-7

1-methyl-1H-imidazole

n-Butyl chloride
109-69-3

n-Butyl chloride

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
Alkylation;100%
In toluene at 112 - 113℃; for 3h;100%
at 170℃; Microwave irradiation;99%
1-methyl-3-(n-butyl)imidazolium iodide
65039-05-6

1-methyl-3-(n-butyl)imidazolium iodide

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
With Amberlist A-26 Cl(-) form In methanol Ionic liquid;100%
With Amberlyst A-26 (Cl- form) In methanol100%
3-butyl-1-methyl-1H-imidazol-3-ium hexafluorophosphate
174501-64-5

3-butyl-1-methyl-1H-imidazol-3-ium hexafluorophosphate

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
With Amberlyst A-26 (Cl- form) In methanol100%
n-Butyl chloride
109-69-3

n-Butyl chloride

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
With 1-methyl-1H-imidazole98%
1-butyl-3-methylimidazolium formate
497144-87-3

1-butyl-3-methylimidazolium formate

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
With hydrogenchloride In water at 25℃; for 0.5h;95%
3-butyl-1-methylimidazolium acetate
284049-75-8

3-butyl-1-methylimidazolium acetate

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
With hydrogenchloride In water at 50℃; Product distribution / selectivity; Cooling;93.5%
chlorure de methyl-1 (dinitro-2,4 phenyl)-3 imidazolium
39678-28-9

chlorure de methyl-1 (dinitro-2,4 phenyl)-3 imidazolium

N-butylamine
109-73-9

N-butylamine

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
In ethanol; water at 35℃; for 1.5h; Zincke reaction; Sonication; Inert atmosphere;81%
1-methyl-1H-imidazole
616-47-7

1-methyl-1H-imidazole

1-bromo-butane
109-65-9

1-bromo-butane

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
at 70℃; for 48h;80%
In diethyl ether
1-butyl-3-methylimidazolium hydroxide

1-butyl-3-methylimidazolium hydroxide

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
With hydrogenchloride In acetone
1-butyl-3-methylimidazolium 4-chlorobutylsulfonate:

1-butyl-3-methylimidazolium 4-chlorobutylsulfonate:

A

1,4-butane sultone
1633-83-6

1,4-butane sultone

B

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
at 210℃; for 4h;
2-methylimidazole
693-98-1

2-methylimidazole

n-Butyl chloride
109-69-3

n-Butyl chloride

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
Inert atmosphere;
1-Butylimidazole
4316-42-1

1-Butylimidazole

carbonic acid dimethyl ester
616-38-6

carbonic acid dimethyl ester

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
Stage #1: 1-Butylimidazole With hydrogenchloride In water Cooling with ice;
Stage #2: carbonic acid dimethyl ester at 169.84℃; for 8h; Autoclave; Neat (no solvent);
1-Butylimidazole
4316-42-1

1-Butylimidazole

trimethyl orthoformate
149-73-5

trimethyl orthoformate

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
With ammonium chloride at 110℃; for 24h; Inert atmosphere;
With ammonium chloride at 0 - 110℃; for 24h;50 %Spectr.
n-Butyl chloride
109-69-3

n-Butyl chloride

1-methyl-3H-imidazolium

1-methyl-3H-imidazolium

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
at 80℃; for 72h;
methylene chloride
74-87-3

methylene chloride

4-n-butyl-1,2,4-triazole
16227-10-4

4-n-butyl-1,2,4-triazole

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
In acetonitrile for 36h; Reflux; Inert atmosphere; Schlenk technique;
1-methyl-1H-imidazole
616-47-7

1-methyl-1H-imidazole

n-butane
106-97-8

n-butane

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
at 50℃; for 12h; Inert atmosphere;
1-n-butyl-3-methylimidazolim bromide
85100-77-2

1-n-butyl-3-methylimidazolim bromide

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Conditions
ConditionsYield
With hydrogenchloride In acetone at 40℃; for 10h;
1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

1-butyl-3-methylimidazolium Tetrafluoroborate
174501-65-6

1-butyl-3-methylimidazolium Tetrafluoroborate

Conditions
ConditionsYield
With triethylsulfonium tetrafluoroborate In dichloromethane at 60 - 70℃; for 672h; Product distribution / selectivity;100%
With tetrafluoroboric acid In water at 70℃;100%
With tetrafluoroboric acid; silver(l) oxide In water at 20℃; for 3h; Darkness;97%
1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

3-butyl-1-methyl-1H-imidazol-3-ium hexafluorophosphate
174501-64-5

3-butyl-1-methyl-1H-imidazol-3-ium hexafluorophosphate

Conditions
ConditionsYield
With Amberlyst A-26 (PF6- form) In methanol100%
With sodium hexaflorophosphate In acetone at 80℃; for 0.166667h; microwave irrradiation;99%
With potassium hexafluorophosphate In acetone at 20℃; for 24h;98%
toluene-4-sulfonic acid
104-15-4

toluene-4-sulfonic acid

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

1-butyl-3-methylimidazolium 4-methylbenzenenesulfonate

1-butyl-3-methylimidazolium 4-methylbenzenenesulfonate

Conditions
ConditionsYield
In 1,4-dioxane at 20℃;100%
at 80℃;
1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

methyl trifluoromethanesulfonate
333-27-7

methyl trifluoromethanesulfonate

1-(n-butyl)-3-methylimidazolium triflate
174899-66-2

1-(n-butyl)-3-methylimidazolium triflate

Conditions
ConditionsYield
at 20℃; for 0.5h; Product distribution / selectivity;100%
at 20℃; for 0.5h;100%
trimethylsilyl trifluoromethanesulfonate
27607-77-8

trimethylsilyl trifluoromethanesulfonate

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

1-(n-butyl)-3-methylimidazolium triflate
174899-66-2

1-(n-butyl)-3-methylimidazolium triflate

Conditions
ConditionsYield
at 20℃; for 4h; Product distribution / selectivity;100%
at 20℃; for 0.5h;100%
1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

trifluoroacetic anhydride
407-25-0

trifluoroacetic anhydride

1-butyl-3-methylimidazolium trifluoroacetate

1-butyl-3-methylimidazolium trifluoroacetate

Conditions
ConditionsYield
at 20℃; for 1 - 3h;100%
dimethyl sulfate
77-78-1

dimethyl sulfate

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

1-butyl-3-methylimidazolium methylsulfate
401788-98-5

1-butyl-3-methylimidazolium methylsulfate

Conditions
ConditionsYield
at 20℃; for 1h; Product distribution / selectivity;100%
diethyl sulfate
64-67-5

diethyl sulfate

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

1-butyl-3-methylimidazolium ethyl sulfate
597579-96-9

1-butyl-3-methylimidazolium ethyl sulfate

Conditions
ConditionsYield
at 20℃; for 2h;100%
Methyl(trimethylsilyl)sulfat
18165-71-4

Methyl(trimethylsilyl)sulfat

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

1-butyl-3-methylimidazolium methylsulfate
401788-98-5

1-butyl-3-methylimidazolium methylsulfate

Conditions
ConditionsYield
at 20℃; for 12h; Product distribution / selectivity;100%
(trimethylsilyl)octylsulfate

(trimethylsilyl)octylsulfate

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

1-n-butyl-3-methylimidazolium octyl sulfate

1-n-butyl-3-methylimidazolium octyl sulfate

Conditions
ConditionsYield
at 20℃; for 12h; Product distribution / selectivity;100%
1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

C8H15N2(1+)*0.39Cl(1-)*0.61F(1-)

C8H15N2(1+)*0.39Cl(1-)*0.61F(1-)

Conditions
ConditionsYield
With potassium fluoride In methanol at 25℃; for 0.5h;100%
1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

C8H15N2(1+)*0.53Cl(1-)*0.47F(1-)

C8H15N2(1+)*0.53Cl(1-)*0.47F(1-)

Conditions
ConditionsYield
With potassium fluoride In methanol at 25℃; for 0.5h;100%
1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

1-butyl-3-methyl-3H-imidazol-1-ium fluoride

1-butyl-3-methyl-3H-imidazol-1-ium fluoride

Conditions
ConditionsYield
With silver fluoride In water at 25℃; for 0.5h;100%
With potassium fluoride In methanol at 20℃; for 0.5h; Green chemistry;95%
Stage #1: 1-butyl-3-methylimidazolium chloride With potassium hydroxide In ethanol for 2h;
Stage #2: With ammonium fluoride In ethanol at 50℃; for 12h;
80%
1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

C8H15N2(1+)*0.525Cl(1-)*0.475F(1-)

C8H15N2(1+)*0.525Cl(1-)*0.475F(1-)

Conditions
ConditionsYield
With silver fluoride In water at 25℃; for 0.5h;100%
trimethyl phosphite
512-56-1

trimethyl phosphite

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

1-butyl-3-methyl-1H-imidazol-3-ium dimethyl phosphate

1-butyl-3-methyl-1H-imidazol-3-ium dimethyl phosphate

Conditions
ConditionsYield
at 100℃; for 2h;100%
at 60℃; for 5h;100%
methyl ester of bis(pentafluoroethyl)phosphinic acid
852616-02-5

methyl ester of bis(pentafluoroethyl)phosphinic acid

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

1-butyl-3-methylimidazolium bis(pentafluoroethyl)phosphinate

1-butyl-3-methylimidazolium bis(pentafluoroethyl)phosphinate

Conditions
ConditionsYield
at 20℃; for 8h; Product distribution / selectivity;100%
bis(pentafluoroethyl)phosphinic acid trimethylsilyl ether
891773-26-5

bis(pentafluoroethyl)phosphinic acid trimethylsilyl ether

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

1-butyl-3-methylimidazolium bis(pentafluoroethyl)phosphinate

1-butyl-3-methylimidazolium bis(pentafluoroethyl)phosphinate

Conditions
ConditionsYield
at 20℃; for 8h; Product distribution / selectivity;100%
aluminium trichloride
7446-70-0

aluminium trichloride

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

1-butyl-3-methylimidazolium heptachlorodialuminate

1-butyl-3-methylimidazolium heptachlorodialuminate

Conditions
ConditionsYield
In neat (no solvent) 1-butyl-3-methylimidazolium chloride was mixed with AlCl3 under N2 for 5min.;100%
E.J. Angueira, M.G. White, J. Mol. Catal. A Chem. 227 (1-2) (2005) 51-58; 238 (2005) 163-174;
dimethylsulfite
616-42-2

dimethylsulfite

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

[bmim][MeSO3]

[bmim][MeSO3]

Conditions
ConditionsYield
at 20℃; for 72h;100%
diethyl sulphite
623-81-4

diethyl sulphite

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

1-butyl-3-methylimidazolium ethylsulfite
919788-10-6

1-butyl-3-methylimidazolium ethylsulfite

Conditions
ConditionsYield
at 60 - 70℃; under 750.075 - 1125.11 Torr; for 30 - 48h; Product distribution / selectivity;100%
1,4-butane sultone
1633-83-6

1,4-butane sultone

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

1-butyl-3-methylimidazolium 4-chlorobutylsulfonate:

1-butyl-3-methylimidazolium 4-chlorobutylsulfonate:

Conditions
ConditionsYield
at 40℃; for 24h; Product distribution / selectivity;100%
In Nitroethane Kinetics; Activation energy;
1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

Amberlyst A-26 (Ibuprofenate form)

Amberlyst A-26 (Ibuprofenate form)

1-butyl-3-methylimidazolium ibuprofenate
1289675-16-6

1-butyl-3-methylimidazolium ibuprofenate

Conditions
ConditionsYield
In acetonitrile100%
1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

mercury dichloride

mercury dichloride

[1-n-butyl-3-methylimidazolium][HgCl3]

[1-n-butyl-3-methylimidazolium][HgCl3]

Conditions
ConditionsYield
In water imidazolium salt and HgCl2 dissolved separately in deionized H2O; mixed; solvent evapd. isothermally under ambient conditions; elem. anal.;100%
In neat (no solvent) under N2; HgCl2 added to imidazolium salt in glass tube; sealed under vac.; heated to 130°C; slowly cooled (3°C/h) to room temp. (25°C); elem. anal.;99%
sodium salicylate
54-21-7

sodium salicylate

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

1-butyl-3-methyl-3H-imidazolium salicylate

1-butyl-3-methyl-3H-imidazolium salicylate

Conditions
ConditionsYield
In acetone for 72h;100%
In acetonitrile at 20℃; for 24h; Inert atmosphere;95%
In acetone for 12h; Reflux;
In acetonitrile at 20℃;
tris(trifluoromethanesulfonium)methylide cesium salt

tris(trifluoromethanesulfonium)methylide cesium salt

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

1-n-butyl-3-methylimidazolium tris(trifluoromethylsulfonyl)methide

1-n-butyl-3-methylimidazolium tris(trifluoromethylsulfonyl)methide

Conditions
ConditionsYield
In dichloromethane at 20℃; for 24h; Schlenk technique; Glovebox;100%
1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

palladium dichloride

palladium dichloride

bis(1-n-buthyl-3-methylimidazolium) tetrachloroplatinate(II)

bis(1-n-buthyl-3-methylimidazolium) tetrachloroplatinate(II)

Conditions
ConditionsYield
In water at 80℃; for 1h;100%
bismuth(III) chloride

bismuth(III) chloride

1-butyl-3-methylimidazolium chloride
79917-90-1

1-butyl-3-methylimidazolium chloride

3C8H15N2(1+)*BiCl6(3-)

3C8H15N2(1+)*BiCl6(3-)

Conditions
ConditionsYield
at 120℃; for 4h;100%

79917-90-1Relevant articles and documents

Experimental measurement and modeling of vapor-liquid equilibrium for the ternary system water + ethanol + 1-Butyl-3-methylimidazolium chloride

Geng, Wei,Zhang, Lianzhong,Deng, Dongshun,Ge, Yun,Ji, Jianbing

, p. 1679 - 1683 (2010)

Vapor-liquid equilibrium (VLE) data were measured for the ternary system water (1) + ethanol (2) + 1-butyl-3-methylimidazolium chloride ([bmim]Cl) (3). Complete T, x, and y data were obtained in a relatively wide range of ionic liquid (IL) mass fractions up to 0.8 and in a relatively complete composition range for the volatile binary pair. The nonrandom two-liquid (NRTL) equation was used for correlation and was revealed to be adequate for the ternary system in the experimental composition range. The ternary VLE behavior was also modeled by the correlation of two data sets, in which the ethanol mole fraction on IL-free basis is respectively at 0.1 and 0.98. In this way, the six data sets were reproduced satisfactorily, with root-mean-square deviations of 0.40 K for temperature and 0.0070 for vapor-phase mole fractions. Owing to the regular distribution of the experimental data, a good agreement between the experiment and the calculation was graphically presented. The effect of the IL on the VLE behavior of the volatile components was also illustrated.

Method for synthesizing antioxygen 1076

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Paragraph 0020; 0021, (2017/07/21)

The invention belongs to the technical field of fine chemistry and particularly relates to a method for synthesizing antioxygen 1076. The method is prepared by carrying out an ester exchange reaction on raw materials including beta-(3,5-ditert-butyl-4-hydroxyphenyl)methyl propionate and octadecanol; the ester exchange reaction is carried out in a neutral/weakly alkaline ionic liquid catalysis system. According to the method provided by the invention, neutral/weakly alkaline ionic liquid is used as a catalyst and the catalysis performance is good; the content of final products reaches 99% or more and the yield reaches 97.5% or more. In a 1076 esterification reaction, performances of the neutral/weakly alkaline ionic liquid catalyst are better than catalysts including sodium methylate, potassium tert-butanolate, organic tin, organic titanium and the like. By utilizing the ionic liquid catalysis system, post-treatment operation is simple; the catalyst is environmentally friendly and the catalyst can be circularly utilized; and the product has a good color and high yield.

Recyclable zinc (II) ionic liquid catalyzed synthesis of azides by direct azidation of alcohols using trimethylsilylazide at room temperature

Singh, Ashima,Singh, Harjinder,Khurana

, p. 2498 - 2502 (2017/05/31)

A new efficient method has been reported for the synthesis of azides by direct azidation of alcohols with TMSN3 in presence of recyclable task specific ionic liquid (TSIL) [bmim]ZnCl3 as a catalyst in DCM at room temperature. Ionic liquid [bmim]ZnCl3 was synthesized under solvent free conditions and characterized by IR, 1H NMR, 13C NMR and HRMS. The Lewis acidity of catalyst was also examined using IR spectroscopy. The main features of this new methodology are high yields of products, recyclability of catalyst, scalability of reaction to gram scale and short reaction time.

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