Title:
METHOD FOR IN-SITU PREPARATION OF ORGANIC SULFUR COMPOUND
Document Type and Number:
WIPO Patent Application WO/2022/092833
Kind Code:
A1
Abstract:
The present invention relates to a method for in-situ preparation of an organic sulfur compound, the method comprising: a solventless cyclization step in which dihalogen-based cyclization agent is fed to alkylene glycol, followed by stirring to synthesize a cyclic compound; and an oxidation step in which the cyclic compound is reacted with metal hypohalite in the presence of a ruthenium catalyst in an aprotic organic solvent having a boiling point of 40 to 90℃ and a weak alkaline aqueous solution to synthesize a sulfur compound bearing a SO2 terminal group, wherein the solventless cyclization step and the oxidation step are performed without a separation process in a single reactor. The method for in-situ preparation of an organic sulfur compound, provided according to the present invention, employs a single reactor to secure an economical benefit and processability and is less prone to provoking side reactions, thus yielding a high output of the organic sulfur compound and guaranteeing excellent reaction stability.
Inventors:
LEE AH RANG (KR)
PARK JEONG GEUN (KR)
LEE SEOK JONG (KR)
PARK HEE GEUN (KR)
JUNG KWANG JU (KR)
HA JONG JIN (KR)
PARK JEONG GEUN (KR)
LEE SEOK JONG (KR)
PARK HEE GEUN (KR)
JUNG KWANG JU (KR)
HA JONG JIN (KR)
Application Number:
PCT/KR2021/015274
Publication Date:
May 05, 2022
Filing Date:
October 28, 2021
Export Citation:
Assignee:
SOULBRAIN CO LTD (KR)
International Classes:
C07D327/10; C07D497/10
Foreign References:
| CN111533728A | 2020-08-14 | |||
| CN105481826A | 2016-04-13 | |||
| CN109485633A | 2019-03-19 | |||
| EP0332521A1 | 1989-09-13 | |||
| KR20160016897A | 2016-02-15 |
Attorney, Agent or Firm:
NEWKOREA PATENT & LAW FIRM (KR)
Download PDF: