PREPARATION METHOD FOR S-INDOXACARB - JINGBO AGROCHEMICALS TECH CO LTD

Title:

PREPARATION METHOD FOR S-INDOXACARB

Document Type and Number:

WIPO Patent Application WO/2019/233209

Kind Code:

A1

Abstract:

A catalyst and a method for preparing S-indoxacarb using the catalyst. The catalyst is prepared using 3-tert-butyl-5-chloromethyl salicylaldehyde and cyclohexanediamine as raw materials, where an original quinine catalyst such as cinchonine is replaced with the catalyst for application in the asymmetric synthesis of tert-butyl hydroperoxide and 5-chloro-2-methoxycarbonyl-1-indanone ester, greatly improving selection in the asymmetric synthesis process, with the S-enantiomer content increasing from 75% to over 98%, achieving the recycling of a high-efficiency chiral catalyst, and greatly reducing production costs. The synthesis process of the catalyst is simple and is favorable for industrialization, and lays good foundations for the production of high-quality indoxacarb.

More Like This:

WO/2000/037175	CATALYST AND PROCESSES FOR OLEFIN TRIMERIZATION
JP2002540225	INDUSTRIAL APPLICABILITY The olefin polymerization method in the presence of a nickel complex and the corresponding catalyst system.
JPS5940806	[Title of the Invention] A manufacturing process of an unsaturated compound

Inventors:

BO LEIFANG (CN)
CHENG DAOQUAN (CN)
LIU JIANCHENG (CN)
FENG PEILIANG (CN)
LIU HUAMIN (CN)
WANG ZHONGYANG (CN)

Application Number:

PCT/CN2019/084224

Publication Date:

December 12, 2019

Filing Date:

April 25, 2019

Export Citation:

Click for automatic bibliography generation Help

Assignee:

JINGBO AGROCHEMICALS TECH CO LTD (CN)

International Classes:

B01J31/22; C07B53/00; C07D237/04; C08G12/40

Foreign References:

CN101062903A	2007-10-31
CN1630555A	2005-06-22
CN106397351A	2017-02-15

Other References: