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DE69503936D1 - Verfahren zur Phosgenierung in Gegenwart des Acetonitrils - Google Patents

Verfahren zur Phosgenierung in Gegenwart des Acetonitrils

Info

Publication number
DE69503936D1
DE69503936D1 DE69503936T DE69503936T DE69503936D1 DE 69503936 D1 DE69503936 D1 DE 69503936D1 DE 69503936 T DE69503936 T DE 69503936T DE 69503936 T DE69503936 T DE 69503936T DE 69503936 D1 DE69503936 D1 DE 69503936D1
Authority
DE
Germany
Prior art keywords
phosgenation
acetonitrile
conducted
solvent
acid chlorides
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.)
Expired - Fee Related
Application number
DE69503936T
Other languages
English (en)
Other versions
DE69503936T2 (de
Inventor
N Subramanian
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.)
Syngenta Ltd
Original Assignee
Zeneca 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22732010&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69503936(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Zeneca Ltd filed Critical Zeneca Ltd
Application granted granted Critical
Publication of DE69503936D1 publication Critical patent/DE69503936D1/de
Publication of DE69503936T2 publication Critical patent/DE69503936T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C303/00Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/36Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of amides of sulfonic acids
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/06Preparation of nitro compounds
    • C07C201/12Preparation of nitro compounds by reactions not involving the formation of nitro groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/58Preparation of carboxylic acid halides
    • C07C51/60Preparation of carboxylic acid halides by conversion of carboxylic acids or their anhydrides or esters, lactones, salts into halides with the same carboxylic acid part

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Steroid Compounds (AREA)
DE69503936T 1994-02-17 1995-02-01 Verfahren zur Phosgenierung in Gegenwart des Acetonitrils Expired - Fee Related DE69503936T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19810894A 1994-02-17 1994-02-17

Publications (2)

Publication Number Publication Date
DE69503936D1 true DE69503936D1 (de) 1998-09-17
DE69503936T2 DE69503936T2 (de) 1998-12-10

Family

ID=22732010

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69503936T Expired - Fee Related DE69503936T2 (de) 1994-02-17 1995-02-01 Verfahren zur Phosgenierung in Gegenwart des Acetonitrils

Country Status (7)

Country Link
EP (1) EP0668260B1 (de)
AT (1) ATE169611T1 (de)
DE (1) DE69503936T2 (de)
DK (1) DK0668260T3 (de)
ES (1) ES2119308T3 (de)
GR (1) GR3027647T3 (de)
SI (1) SI0668260T1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6028219A (en) * 1995-09-13 2000-02-22 Zeneca Limited Process for the nitration of diphenylethers
GB9518704D0 (en) * 1995-09-13 1995-11-15 Zeneca Ltd Chemical process
GB9518705D0 (en) * 1995-09-13 1995-11-15 Zeneca Ltd Chemical process
US5910604A (en) * 1995-09-13 1999-06-08 Zeneca Limited Purification process
TW426650B (en) * 1996-11-01 2001-03-21 Zeneca Ltd Nitration process
CN105384641A (zh) * 2015-10-26 2016-03-09 安徽广信农化股份有限公司 一种对硝基苯甲酰氯的废水处理工艺
CN105384640B (zh) * 2015-10-26 2017-07-04 安徽广信农化股份有限公司 一种对硝基苯甲酰氯的尾气处理工艺
CN113943233A (zh) * 2020-08-07 2022-01-18 山东科源化工有限公司 一种环保型氟磺胺草醚的制备方法
CN115403488B (zh) * 2021-05-27 2024-07-19 江苏联化科技有限公司 氟磺胺草醚的制备方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2750169A1 (de) * 1976-11-12 1978-05-18 Ciba Geigy Ag Aliphatische karbonsaeureester, verfahren zu ihrer herstellung und ihre verwendung in der schaedlingsbekaempfung
DE3535984A1 (de) * 1985-10-09 1987-04-09 Bayer Ag Verfahren zur herstellung von aromatischen carbonsaeurechloriden

Also Published As

Publication number Publication date
DE69503936T2 (de) 1998-12-10
EP0668260A1 (de) 1995-08-23
DK0668260T3 (da) 1999-05-10
ES2119308T3 (es) 1998-10-01
SI0668260T1 (en) 1998-10-31
GR3027647T3 (en) 1998-11-30
ATE169611T1 (de) 1998-08-15
EP0668260B1 (de) 1998-08-12

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8327 Change in the person/name/address of the patent owner

Owner name: SYNGENTA LTD., GUILDFORD, GB

8339 Ceased/non-payment of the annual fee