1-ETHYL-1-METHYLPYRROLIDINIUM BROMIDE Chemical Properties

Melting point:

106 °C

storage temp. 

Sealed in dry,Room Temperature

form 

Solid

color 

White to Orange to Green

Water Solubility 

Soluble in water.

InChI

InChI=1S/C7H16N.BrH/c1-3-8(2)6-4-5-7-8;/h3-7H2,1-2H3;1H/q+1;/p-1

InChIKey

KHJQQUGSPDBDRM-UHFFFAOYSA-M

SMILES

[N+]1(C)(CC)CCCC1.[Br-]

LogP

-3.34 at 25℃

CAS DataBase Reference

69227-51-6

EPA Substance Registry System

Pyrrolidinium, 1-ethyl-1-methyl-, bromide (69227-51-6)

Safety Information

Hazard Codes 

Xn

Risk Statements 

68

Safety Statements 

36/37

WGK Germany 

3

TSCA 

TSCA listed

HS Code 

29339900

Storage Class

11 - Combustible Solids

Hazard Classifications

Muta. 2

1-ETHYL-1-METHYLPYRROLIDINIUM BROMIDE Usage And Synthesis

Chemical Properties

Off-white crystalline

Uses

1-Ethyl-1-methylpyrrolidinium bromide s an important raw material and intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyestuff.

Uses

1-Ethyl-1-methylpyrrolidinium bromide may be used in the preparation of 1-ethyl-1-methylpyrrolidinium lactate, a potential solvent for the separation of hexan-1-ene from hexane. It can also be used to prepare 1-ethyl-1-methylpyrrolidinium tribromide. It can be used as a co-catalyst during the cycloaddition of CO₂ with different epoxides to form cyclic carbonates in the presence of a nona-vacant Keggin-type tricarbonyl rhenium derivative catalyst.

General Description

1-Ethyl-1-methylpyrrolidinium bromide is an ionic liquid that can be prepared by reacting N-methylpyrrolidine with bromoethane. it is conventionally used as a bromine-sequestering agent (BSA) in zinc/bromine redox flow batteries.

Synthesis

A process for synthesizing quaternary ammonium salt, including the following steps:

S1, replace nitrogen in the whole system in advance, open the metering valves for raw materials and solvent respectively, and add raw material A, raw material B and solvent to the reaction kettle; wherein, raw material A is N-methyl-pyrrolidine; raw material B is ethyl bromide; the solvent is acetone; the quantity of raw material A added is 1 portion, the quantity of raw material B added is 1 portion, and the quantity of solvent added is 5 portions by weight;

S2, start heating, stop heating when the temperature in the reactor reaches the set temperature of 35??; control the condenser inlet shut-off valve, and stop heating. The addition amount of raw material A is 1 portion, the addition amount of raw material B is 1 portion, and the addition amount of solvent is 5 portions;

S2, start heating, when the temperature in the reaction kettle reaches the set temperature of 35 ??, stop heating; control the condenser inlet shut-off valve, so that the pressure in the reaction kettle reaches the set pressure of 30kPa; start the reaction, control the metering valve of the raw material B, regulate the amount of the raw material B added to the control of temperature in the reactor; control the condenser outlet shut-off valve, the raw material B condensation back to the reaction kettle. Cut-off valve, raw material B condensation reflux;

S3, to reach the reaction time of 1h after the end of the reaction, close the condenser inlet cut-off valve, control the reactor pressure of 30kPa, the reaction liquid into the reaction liquid tank, through the steam pressure, the completion of the separation of solid-liquid; solid products directly out of the material, the liquid recycling and utilization. The obtained product yield is 95.47%, raw material conversion rate is 99.5%.

1-ETHYL-1-METHYLPYRROLIDINIUM BROMIDE(69227-51-6)Related Product Information

• Flutropium bromide
• butropium bromide
• Rocuronium bromide
• Ipratropium bromide
• Cimetropium bromide
• propyromazine bromide
• BROMIDE
• xenytropium bromide
• benzilonium bromide
• Scopolamine butylbromide
• prifinium bromide
• 1-alpha-H,5-alpha-H-Tropanium, 8-(p-ethylbenzyl)-3-hydroxy-, bromide, xanthene-9-carboxylate(ester)
• 4,4'-Bis((3-methylpyrrolidino)acetyl)biphenyl dimethiobromide
• 2-(2-Cyclopentyl-2-hydroxy-2-phenylacetoxy)-5-azoniaspiro(4.4)nonane b romide
• 4,4'-Bis(pyrrolidinoacetyl)biphenyl dimethiobromide
• 1-alpha-H,5-alpha-H-Tropanium, 8-butyl-3-hydroxy-, bromide, benzilate
• 4,4'-Bis((2-methylpyrrolidino)acetyl)biphenyl dimethiobromide
• 3-Benzyl-1-(7-(1-methylpyrrolidinio)heptyl)quinuclidinium, dibromide