Synthesis of lactam based ionic liquid

Patent metadata

Field	Value
Publication number	US-9233928-B2
Application number	US-201414271308-A
Country	US
Kind code	B2
Filing date	May 6, 2014
Priority date	May 6, 2014
Publication date	Jan 12, 2016
Grant date	Jan 12, 2016

Abstract

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.

First claim

What is claimed is:

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.

Assignees

• Uop Llc

Inventors

• Broderick Erin M
• Bhattacharyya Alakananda
• Levy Alan B
• Tang Lihao

Classifications

• C07C309/73

  to carbon atoms of non-condensed six-membered aromatic rings · CPC title

• C07D223/10 Primary

  attached in position 2 · CPC title