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:
May. 25, 2021
Filed:
Apr. 04, 2018
Nanjing Redsun Biochemistry Co., Ltd., Jiangsu, CN;
Chaoran Luo, Jiangsu, CN;
Wenkui Wang, Jiangsu, CN;
Yi Xue, Jiangsu, CN;
Xinchun Chen, Jiangsu, CN;
Dianhai Zhou, Jiangsu, CN;
Jianhua Jiang, Jiangsu, CN;
Fujun Wang, Jiangsu, CN;
NANJING REDSUN BIOCHEMISTRY CO., LTD., Jiangsu, CN;
Abstract
Disclosed is a method for preparing 2,2'-dipyridine and derivatives thereof. The method includes: using pyridine represented by formula I or a derivative thereof as a raw material to generate 2,2′-dipyridine represented by formula II by performing dehydrogenative coupling under the action of a supported catalyst in the presence of additives, where R is H, C-Calkyl, Cl, or Br. The method of the present invention features wide adaptability to raw materials, high atomic utilization rate, high catalyst activity, long service life, and fewer by-products.