EP4366771A4 - Procédé de préparation d'acide 2-nitro-4-méthylsulfonylbenzoïque pur - Google Patents

Procédé de préparation d'acide 2-nitro-4-méthylsulfonylbenzoïque pur

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
German (de)
English (en)
Other versions
EP4366771A1 (fr
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/fr
Publication of EP4366771A4 publication Critical patent/EP4366771A4/fr
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 Procédé de préparation d'acide 2-nitro-4-méthylsulfonylbenzoïque pur Pending EP4366771A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202121030817 2021-07-09
PCT/IN2022/050623 WO2023281536A1 (fr) 2021-07-09 2022-07-08 Procédé de préparation d'acide 2-nitro-4-méthylsulfonylbenzoïque pur

Publications (2)

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

Family

ID=84800431

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22837192.8A Pending EP4366771A4 (fr) 2021-07-09 2022-07-08 Procédé de préparation d'acide 2-nitro-4-méthylsulfonylbenzoïque pur

Country Status (3)

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

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
EP4366771A1 (fr) 2024-05-15
CN117794567A (zh) 2024-03-29
WO2023281536A1 (fr) 2023-01-12

Similar Documents

Publication Publication Date Title
EP4393911A4 (fr) Procédé de préparation de 5-hydroxyméthylfurfural
EP4146249A4 (fr) Procédé amélioré pour la préparation de sémaglutide
EP4116314C0 (fr) Procédé de préparation de 16alpha-hydroxyprednisolone
EP4281069A4 (fr) Procédés de préparation de composés de pyrrolopyridine-aniline
EP4380932C0 (fr) Procédé de préparation d'aficamten
EP4328221A4 (fr) Procédé de préparation de l-nicotine
EP4230634C0 (fr) Procédé de préparation de glufosinate-ammonium
EP4370491A4 (fr) Procédé intégré de production de trifluoroiodométhane
EP4387961A4 (fr) Procédé de préparation d'inhibiteurs d'histone déméthylase
EP4164620A4 (fr) Procédé amélioré de préparation de sitagliptine
EP4146590A4 (fr) Procédé de génération d'anhydrides d'acide
EP4393483A4 (fr) Procédé de préparation de comprimés d'amisulpride
EP4419503A4 (fr) Procédé de préparation de dérivés d'acide indole-3-carboxylique
EP4239070A4 (fr) Procédé de production d'acide l-aminé
EP4140992C0 (fr) Procédé de préparation de s-nicotine
EP4122908A4 (fr) Procédé de préparation d'alcool isopropylique
EP4043392A4 (fr) Méthode de production de pentafluorure de brome
EP4214190C0 (fr) Procédé de préparation d'arylvinylsulphones
EP4450512A4 (fr) Procédé de production d'oligonucléotide
EP4516918A4 (fr) Procédé de préparation d'isopropanolamine
EP4410800A4 (fr) Procédé de production de monoester d'acide vinylphosphonique
EP4484401A4 (fr) Procédé de production de 2,7-octadiène-1-ol
EP4435033A4 (fr) Procédé de production de polyéther nitrile
EP4186887C0 (fr) Procédé de production d'aminométhyle aromatique
EP4232430C0 (fr) Procédé de fabrication de la méthionine

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20240105

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: A61K0039390000

Ipc: C07C0303080000

A4 Supplementary search report drawn up and despatched

Effective date: 20250528

RIC1 Information provided on ipc code assigned before grant

Ipc: C07C 315/06 20060101ALI20250522BHEP

Ipc: C07C 317/14 20060101ALI20250522BHEP

Ipc: C07C 317/44 20060101ALI20250522BHEP

Ipc: C07C 315/04 20060101ALI20250522BHEP

Ipc: C07C 315/00 20060101ALI20250522BHEP

Ipc: C07C 309/86 20060101ALI20250522BHEP

Ipc: C07C 303/08 20060101AFI20250522BHEP