Frustrated Lewis pair compositions

US8642812B2 · kind B2 · utility

Assignee

• STEPAN COMPANY · US

Inventors

• Douglas W. Stephan · Toronto, CA
• Gregory C. Welch · Lompoc, US
• Jenny S. J. McCahill · Hubley, CA

Key dates

• Filing date: Sep 14, 2012
• Grant date: Feb 4, 2014
• Expiry date: Sep 14, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/5022
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A compound having the formula (I) where each of R1, R2, R3 and R4 is independently C6-C18 aryl-, C5-C8 cycloalkyl-, C6-C18 aryl having at least one C1-C20 alkyl substituent, C5-C8 cycloalkyl having at least one C1-C20 alkyl substituent, C4-C20 branched alkyl-, C16-C20 linear alkyl-, RO—, —NRR′, —PRR′, —SR, fluoro substituted forms thereof, and perfluoro forms thereof: and R5 is C6-C18 aryl-, C3-C8 cycloalkyl-, C6-C18 aryl having at least one C1-C20 alkyl substituent, C5-C8 cycloalkyl having at least one C1-C20 alkyl substituent, C3-C20 branched alkyl-, C2-C30 linear alkyl-, fluoro substituted forms thereof, and perfluoro forms thereof; where R and R′ are each independently C6-C18 aryl-, C5-C8 cycloalkyl-, C6-C18 aryl having at least one C1-C20 alkyl substituent, C5-C8 cycloalkyl having at least one C1-C20 alkyl substituent, C4-C20 branched alkyl-, C2-C30 linear alkyl-, fluoro substituted forms thereof, and perfluoro forms thereof; A is N, P, S, or O with the proviso that when A is S, R2 is a nullity; and M is B, Al, Ga or In.