# US 9,518,023 B2 · Synthesis of N-derivatized lactam based ionic liquid

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 9,518,023 B2
- Document ID: US9518023B2
- Status: Granted
- Kind: B2
- Application number: 14/271,319
- Filed: 2014-05-06
- Published: 2015-11-12
- Granted: 2016-12-13
- Earliest claimed: 2014-05-06
- Assignees: Uop LLC
- Applicants: Uop LLC
- Inventors: Erin M. Broderick; Alakananda Bhattacharyya; Alan B. Levy; Lihao Tang
- Web page: https://patentgrep.com/patent/US9518023B2

## CPC

- C07D 223/10: attached in position 2
- C07C 303/32: of salts of sulfonic acids
- C07C 309/30: of six-membered aromatic rings substituted by alkyl groups
- C07D 209/34: in position 2
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS

## Abstract

Lactamium based ionic liquids and methods of making them are described. The ionic liquids comprise at least one of: the reaction product of a lactam compound having a general formula wherein the ring has at least one C≡C double bond, or and a Brønsted acid HX; or a Brønsted acid HX where X is a halide, and a metal halide.

## Claims

### Claim 1

A lactamium based ionic liquid consisting of:
a reaction product of a lactam compound having a formula
wherein R is an alkyl group having from 1 to 12 carbon atoms, n is 3; and a Brønsted acid HX where X is a halide, and a metal halide where the reaction product is a halometallate.