EP4366771A4 - Verfahren zur herstellung von reiner 2-nitro-4-methylsulfonylbenzoesäure - Google Patents

Verfahren zur herstellung von reiner 2-nitro-4-methylsulfonylbenzoesäure

Info

Publication number
EP4366771A4
EP4366771A4 EP22837192.8A EP22837192A EP4366771A4 EP 4366771 A4 EP4366771 A4 EP 4366771A4 EP 22837192 A EP22837192 A EP 22837192A EP 4366771 A4 EP4366771 A4 EP 4366771A4
Authority
EP
European Patent Office
Prior art keywords
nitro
pure
preparation
methylsulfonylbenzoic acid
methylsulfonylbenzoic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22837192.8A
Other languages
English (en)
French (fr)
Other versions
EP4366771A1 (de
Inventor
Prashant POTNIS
Surender Dhingra
Shravan Kumar Singh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aarti Industries Ltd
Original Assignee
Aarti Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aarti Industries Ltd filed Critical Aarti Industries Ltd
Publication of EP4366771A1 publication Critical patent/EP4366771A1/de
Publication of EP4366771A4 publication Critical patent/EP4366771A4/de
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C317/00—Sulfones; Sulfoxides
    • C07C317/44—Sulfones; Sulfoxides having sulfone or sulfoxide groups and carboxyl groups bound to the same carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
    • C07C303/04—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups
    • C07C303/08—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups by reaction with halogenosulfonic acids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C315/00—Preparation of sulfones; Preparation of sulfoxides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C315/00—Preparation of sulfones; Preparation of sulfoxides
    • C07C315/04—Preparation of sulfones; Preparation of sulfoxides by reactions not involving the formation of sulfone or sulfoxide groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C315/00—Preparation of sulfones; Preparation of sulfoxides
    • C07C315/06—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP22837192.8A 2021-07-09 2022-07-08 Verfahren zur herstellung von reiner 2-nitro-4-methylsulfonylbenzoesäure Pending EP4366771A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202121030817 2021-07-09
PCT/IN2022/050623 WO2023281536A1 (en) 2021-07-09 2022-07-08 A process for the preparation of pure 2-nitro-4-methylsulfonyl benzoic acid

Publications (2)

Publication Number Publication Date
EP4366771A1 EP4366771A1 (de) 2024-05-15
EP4366771A4 true EP4366771A4 (de) 2025-06-25

Family

ID=84800431

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22837192.8A Pending EP4366771A4 (de) 2021-07-09 2022-07-08 Verfahren zur herstellung von reiner 2-nitro-4-methylsulfonylbenzoesäure

Country Status (3)

Country Link
EP (1) EP4366771A4 (de)
CN (1) CN117794567A (de)
WO (1) WO2023281536A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116589384A (zh) * 2023-04-19 2023-08-15 贵州微化科技有限公司 一种利用微通道反应器合成3-硝基-4-甲基苯磺酰氯的方法
CN118420495A (zh) * 2024-04-30 2024-08-02 金华双宏化工有限公司 连续制备3-硝基-4-甲基苯磺酰氯的方法
CN119930484A (zh) * 2025-02-20 2025-05-06 辽宁龙田化工科技有限公司 一种4-甲砜基甲苯衍生物的合成方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103121961A (zh) * 2013-02-05 2013-05-29 江苏中旗作物保护股份有限公司 除草剂甲基磺草酮中间体2-硝基-4-甲磺酰基甲苯合成方法
CN103772243A (zh) * 2013-12-30 2014-05-07 北京英力精化技术发展有限公司 一种甲基磺草酮的制备方法
CN106699616A (zh) * 2016-11-17 2017-05-24 北京颖泰嘉和生物科技股份有限公司 一种新的2‑硝基‑4‑甲磺酰基苯甲酸的纯化方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5136043A (en) * 1989-06-17 1992-08-04 Hoechst Aktiengesellschaft Process for the preparation of aromatic sulfonyl chlorides
DE4235155A1 (de) * 1992-10-19 1994-04-21 Basf Ag Verfahren zur Herstellung von Methylsulfonylbenzoesäuren

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103121961A (zh) * 2013-02-05 2013-05-29 江苏中旗作物保护股份有限公司 除草剂甲基磺草酮中间体2-硝基-4-甲磺酰基甲苯合成方法
CN103772243A (zh) * 2013-12-30 2014-05-07 北京英力精化技术发展有限公司 一种甲基磺草酮的制备方法
CN106699616A (zh) * 2016-11-17 2017-05-24 北京颖泰嘉和生物科技股份有限公司 一种新的2‑硝基‑4‑甲磺酰基苯甲酸的纯化方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2023281536A1 *

Also Published As

Publication number Publication date
WO2023281536A1 (en) 2023-01-12
EP4366771A1 (de) 2024-05-15
CN117794567A (zh) 2024-03-29

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