The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 2014
Filed:
Feb. 12, 2010
Applicants:
Lunjia Xie, Beijing, CN;
Yu Tian, Beijing, CN;
Zaixing Feng, Beijing, CN;
Siyuan Zhao, Beijing, CN;
Yu Kang, Beijing, CN;
Zhufang Sun, Beijing, CN;
Inventors:
Lunjia Xie, Beijing, CN;
Yu Tian, Beijing, CN;
Zaixing Feng, Beijing, CN;
Siyuan Zhao, Beijing, CN;
Yu Kang, Beijing, CN;
Zhufang Sun, Beijing, CN;
Assignees:
Primary Examiner:
Int. Cl.
CPC ...
C07C 253/30 (2006.01); C07C 67/32 (2006.01); C07C 51/38 (2006.01);
U.S. Cl.
CPC ...
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.