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:
Jun. 09, 2020
Filed:
Oct. 26, 2017
Institute of Chemical Industry of Forest Products, Caf, Nanjing, CN;
Zhendong Zhao, Nanjing, CN;
Shichao Xu, Nanjing, CN;
Shouji Zhu, Nanjing, CN;
Jing Wang, Nanjing, CN;
Liangwu Bi, Nanjing, CN;
Yuxiang Chen, Nanjing, CN;
Yanju Lu, Nanjing, CN;
Yan Gu, Nanjing, CN;
INSTITUTE OF CHEMICAL INDUSTRY OF FOREST PRODUCTS, CAF, Nanjing, CN;
Abstract
This invention discloses a type of 1,8-bis(Schiff base)-p-menthane derivatives as well as their preparation method and applications. The reaction of 1,8-diamino-p-menthane with a substituted benzaldehyde was carried out in a polar organic solvent at 0° C.-75° C. for 1-48 h. After the completion of the reaction, part of the solvent was distilled off to perform recrystallization to get a 1,8-bis(Schiff base)-p-menthane derivative, whose pre-emergence herbicidal activity against ryegrass was determined by using the Petri dish seed germination method. The 1,8-bis(Schiff base)-p-menthane derivatives, obtained with this method in high yield and mild reaction conditions, have a good inhibitory effect on the growth of annual ryegrass, and low toxicity.