1-Ethyl-3-methylimidazolium acetate

Base Information

• Chemical Name: 1-Ethyl-3-methylimidazolium acetate
• CAS No.: 143314-17-4
• Deprecated CAS: 2813874-75-6
• Molecular Formula: C8H14N2O2
• Molecular Weight: 170.211
• Hs Code.: 29332900
• European Community (EC) Number: 604-344-8
• DSSTox Substance ID: DTXSID2041179
• Mol file: 143314-17-4.mol

Synonyms:3-Ethyl-1-methyl-imidazole acetate;

Chemical Property of 1-Ethyl-3-methylimidazolium acetate

Chemical Property:

• Vapor Pressure: 0-0.001Pa at 20-50℃
• Melting Point: -20℃
• Refractive Index: n20/D 1.502
• Flash Point: 164 °C
• PSA: 48.94000
• Density: 1.027 g/cm 3 at 25 °C
• LogP: -0.91130
• Storage Temp.: Inert atmosphere,Room Temperature
• Sensitive.: Moisture Sensitive
• Water Solubility.: Soluble in water, acetonitrile, acetone, dichloromethane.
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 1
• Exact Mass: 170.105527694
• Heavy Atom Count: 12
• Complexity: 98.4

Purity/Quality:

98%, ^*data from raw suppliers

1-Ethyl-3-methylimidazolium Acetate ^*data from reagent suppliers

Safty Information:

• Statements: 36/37/38
• Safety Statements: 23-26-37-60

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Canonical SMILES: CCN1C=C[N+](=C1)C.CC(=O)[O-]
• General Description: 1-Ethyl-3-methylimidazolium acetate ([C₂mim][OAc] or EMIMAc) is a polar ionic liquid with notable applications in biomass processing, including lignin solubility enhancement when combined with small amounts of water, cellulose dissolution and regeneration, and catalytic conversion of cellulose to 5-hydroxymethyl furfural (HMF). It exhibits strong hydrogen-bonding interactions with biopolymers, particularly through its acetate anion, which disrupts the crystalline structure of cellulose, converting it to cellulose II upon regeneration. Additionally, it serves as an effective reaction medium for synthesizing graft copolymers like chitosan-graft-polycaprolactone (CS-g-PCL) and demonstrates favorable thermodynamic properties, such as a standard molar heat capacity of solution (δC_p,m^θ) of 411 J·K^-1·mol^-1. Its proton-donating and accepting abilities, modulated by water, further enhance its utility in selective lignin extraction and biomass fractionation under mild conditions.

Technology Process of 1-Ethyl-3-methylimidazolium acetate

There total 26 articles about 1-Ethyl-3-methylimidazolium acetate which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 97.0%

N-Ethylimidazole (7098-07-9) + acetic acid methyl ester (79-20-9) → 1-ethyl-3-methylimidazolium acetate (143314-17-4)

Guidance literature:

In methanol; at 160 ℃; for 20h;

Reference yield: 93.0%

lead(II) acetate trihydrate (6080-56-4) + 3-ethyl-1-methyl-1H-imidazol-3-ium bromide (65039-08-9) → 1-ethyl-3-methylimidazolium acetate (143314-17-4)

Guidance literature:

In water; at 35 ℃; for 48h; Inert atmosphere;

DOI:10.1016/j.carbpol.2013.01.090

Reference yield: 91.0%

silver(I) acetate (563-63-3) + 3-ethyl-1-methyl-1H-imidazol-3-ium bromide (65039-08-9) → 1-ethyl-3-methylimidazolium acetate (143314-17-4)

Guidance literature:

With aluminium; In water; at 20 ℃; for 48h;

DOI:10.1039/c7cc06112a

upstream raw materials:

N-Ethylimidazole

acetic acid methyl ester

acetic acid

potassium tert-butylate

Downstream raw materials:

C₆H₁₁N₂⁽¹⁺⁾*C₈H₉N₆O₈^(1-)

acetic acid butyl ester

1-acetoxy-3-butene

1-pentyl acetate