Synthesis of lactam based ionic liquid
Lactamium based ionic liquids are described. They comprise at least one of: the reaction product of a lactam compound having a general formula wherein n is 1 to 8, and a Brønsted acid HX; or a Brønsted acid HX, where X is a halide, and a metal halide; where the reaction product is p-toluenesulfonate, halide, or the halometallate; or the reaction product of a lactam compound having a general formula wherein the ring has at least C—C one double bond, and n is 1 to 8, and a Brønsted acid HX; or a Brønsted acid HX, where X is a halide, and a metal halide; or the reaction product of a lactam compound having a general formula wherein n is 1 to 8, m is 1 to 8, and the rings can be saturated or unsaturated; and a Brønsted acid HX; or a Brønsted acid HX, where X is a halide, and a metal halide.
1. A lactamium based ionic liquid comprising consisting at least of one of:
a reaction product of a lactam compound having a formula
wherein n is 3,
and a Brønsted acid HX; or a Brønsted acid HX, where X is a halide, and a metal halide; where the reaction product is a halide, or a halometallate.
2. A method of making a lactamium based ionic liquid comprising at least one of:
reacting a lactam compound having a formula
wherein n is 3,
with a Brønsted acid HX; or a Brønsted acid HX, where X is a halide, and a metal halide; where the reaction product is a halide, or a halometallate.
3. The method of claim 2 wherein the reaction takes place in a solvent.
4. The method of claim 3 wherein the solvent selected from the group consisting of water, toluene, dichloromethane, liquid carboxylic acids, alcohols, or combinations thereof.
5. The method of claim 2 wherein a ratio of the Brønsted acid HX to the lactam compound is about 1:1 to about 3:1.