Process for preparing 2,3-di-non-straight-alkyl-2-cyanosuccinic acid diesters

US8669392B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION · CN

Inventors

• Lunjia Xie · Beijing, CN
• Yu Tian · Stanford, US
• Zaixing Feng · Beijing, CN
• Siyuan Zhao · Beijing, CN
• Yu Kang · Beijing, CN
• Zhufang Sun · Beijing, CN

Key dates

• Filing date: Feb 12, 2010
• Grant date: Mar 11, 2014
• Expiry date: May 12, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/08
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for preparing 2,3-di(non-linear-alkyl)-2-cyanosuccinate compounds, especially 2,3-diisopropyl-2-cyanosuccinate compounds, and processes for preparing 2,3-di(non-linear-alkyl)succinic acids and esters thereof by using the 2,3-di-non-linear propyl-2-cyanosuccinate compounds as intermediates are disclosed.