Acetic Acid → Acetic acid--1-ethyl-1H-imidazole (1/1)

First, 6 ml of 99.7% acetic acid was added to 10 g of N-ethylimidazole, and the resultant mixture was stirred for 12 hours at a temperature kept at 0° C. The resultant reaction product was added dropwise to 1000 ml of diethyl ether under stirring. The diethyl ether was distilled off at room temperature, and the residue was dried under vacuum to precipitate crystals. The precipitated crystals were recovered to obtain 15.9 g of N-ethylimidazolium acetate. The product had a glass transition temperature of −51.7° C.

1. customkept at 0° C
2. customThe resultant reaction product
3. distillationThe diethyl ether was distilled off at room temperature
4. customthe residue was dried under vacuum
5. customto precipitate crystals
6. customThe precipitated crystals were recovered

ORD record

ord-1c6bdaa454a84e2b80ebe96aaa2cb1cf

Source dataset

uspto-grants-2011_09

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08014128B2