CN1918103B - 2,5-二甲基苯乙酸的制备方法 - Google Patents

2,5-二甲基苯乙酸的制备方法 Download PDF

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Publication number
CN1918103B
CN1918103B CN2005800041299A CN200580004129A CN1918103B CN 1918103 B CN1918103 B CN 1918103B CN 2005800041299 A CN2005800041299 A CN 2005800041299A CN 200580004129 A CN200580004129 A CN 200580004129A CN 1918103 B CN1918103 B CN 1918103B
Authority
CN
China
Prior art keywords
xylene
formula
mixture
acid
dimethylphenylacetic acid
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
CN2005800041299A
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English (en)
Chinese (zh)
Other versions
CN1918103A (zh
Inventor
T·希姆勒
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.)
Bayer Pharma AG
Original Assignee
Bayer CropScience AG
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 Bayer CropScience AG filed Critical Bayer CropScience AG
Publication of CN1918103A publication Critical patent/CN1918103A/zh
Application granted granted Critical
Publication of CN1918103B publication Critical patent/CN1918103B/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
    • C07D317/10—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
    • C07D317/14—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D317/16—Radicals substituted by halogen atoms or nitro radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D319/04—1,3-Dioxanes; Hydrogenated 1,3-dioxanes
    • C07D319/06—1,3-Dioxanes; Hydrogenated 1,3-dioxanes not condensed with other rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
CN2005800041299A 2004-02-04 2005-01-22 2,5-二甲基苯乙酸的制备方法 Expired - Fee Related CN1918103B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004005318.9 2004-02-04
DE102004005318A DE102004005318A1 (de) 2004-02-04 2004-02-04 Verfahren zur Herstellung von 2,5-Dimethylphenylessigsäure
PCT/EP2005/000617 WO2005075401A1 (de) 2004-02-04 2005-01-22 Verfahren zur herstellung von 2,5-dimethylphenylessigsäure

Publications (2)

Publication Number Publication Date
CN1918103A CN1918103A (zh) 2007-02-21
CN1918103B true CN1918103B (zh) 2012-08-08

Family

ID=34801503

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2005800041299A Expired - Fee Related CN1918103B (zh) 2004-02-04 2005-01-22 2,5-二甲基苯乙酸的制备方法

Country Status (9)

Country Link
US (2) US7579500B2 (enExample)
EP (1) EP1713755B1 (enExample)
JP (1) JP4668212B2 (enExample)
CN (1) CN1918103B (enExample)
AT (1) ATE455087T1 (enExample)
BR (1) BRPI0507422A (enExample)
DE (2) DE102004005318A1 (enExample)
IN (1) IN2012DN03160A (enExample)
WO (1) WO2005075401A1 (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008291008A (ja) 2007-04-24 2008-12-04 Daicel Chem Ind Ltd ２，５−ジメチルアセトフェノン誘導体、２，５−ジメチルアセトフェノン誘導体から得られる２，５−ジメチルフェニル酢酸及びその誘導体の製造方法
EP2204366A1 (de) 2008-12-19 2010-07-07 Bayer CropScience AG Herbizid und insektizid wirksame phenylsubstituierte Pyridazinone
WO2011035878A1 (de) 2009-09-25 2011-03-31 Bayer Cropscience Ag Herbizid wirksame phenylsubstituierte pyridazinone
WO2011045271A1 (de) 2009-10-15 2011-04-21 Bayer Cropscience Ag Herbizid wirksame heterocyclylsubstituierte pyridazinone
WO2012028582A1 (de) 2010-09-01 2012-03-08 Bayer Cropscience Ag Herbizid wirksame ketosultame und diketopyridine
JP2012087113A (ja) * 2010-09-22 2012-05-10 Daicel Corp フェニル酢酸化合物
CN102140062B (zh) 2011-03-13 2012-11-14 联化科技股份有限公司 一种2，5-二甲基苯乙酸的制备方法
CN104628551A (zh) * 2015-02-13 2015-05-20 中国药科大学 一种2,5-二甲基苯乙酸的制备方法
CN110305010B (zh) * 2019-07-17 2022-05-13 江苏中旗科技股份有限公司 一种2,5-二甲基苯乙酸的制备方法
WO2021156214A1 (en) * 2020-02-03 2021-08-12 Dsm Ip Assets B.V. Rearrangement of dimethylphenylacylates using zeolites

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535166A (en) * 1982-08-06 1985-08-13 Zambon S.P.A. Process for preparing alpha-arylalkanoic acids
US4632736A (en) * 1982-06-25 1986-12-30 Westfall Richard M Electrolytic preparation of tin

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE50897B1 (en) 1980-02-26 1986-08-06 Blaschim Spa Process for preparing esters of alkanoic acids via rearrangement of alpha-haloketals
US4623736A (en) * 1982-07-09 1986-11-18 The Upjohn Company Arylalkanoic acid process improvement
IT1212709B (it) * 1983-03-07 1989-11-30 Zambon Spa Alfa-alogenoalchilarilchetali particolarmente utili per la sintesi di acidi alfa-arilalcanoici.
IT1210917B (it) * 1982-08-06 1989-09-29 Zambon Spa Procedimento per preparare esteri di acidi aril-alcanoici.
AU725852B2 (en) 1996-04-02 2000-10-19 Bayer Aktiengesellschaft Substituted phenylketoenols as pesticides and herbicides

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4632736A (en) * 1982-06-25 1986-12-30 Westfall Richard M Electrolytic preparation of tin
US4535166A (en) * 1982-08-06 1985-08-13 Zambon S.P.A. Process for preparing alpha-arylalkanoic acids

Also Published As

Publication number Publication date
JP2007522139A (ja) 2007-08-09
US7579500B2 (en) 2009-08-25
IN2012DN03160A (enExample) 2015-09-18
US20080234501A1 (en) 2008-09-25
US7629476B2 (en) 2009-12-08
WO2005075401A1 (de) 2005-08-18
EP1713755B1 (de) 2010-01-13
CN1918103A (zh) 2007-02-21
BRPI0507422A (pt) 2007-06-26
ATE455087T1 (de) 2010-01-15
DE102004005318A1 (de) 2005-08-25
JP4668212B2 (ja) 2011-04-13
EP1713755A1 (de) 2006-10-25
DE502005008867D1 (de) 2010-03-04
US20090156839A1 (en) 2009-06-18

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GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: BAYER INTELLECTUAL PROPERTY GMBH

Free format text: FORMER OWNER: BAYER LANDWIRTSCHAFTLICHE KULTURPFLANZEN SCIENCE AG

Effective date: 20150403

TR01 Transfer of patent right

Effective date of registration: 20150403

Address after: German Monheim

Patentee after: Bayer Pharma Aktiengesellschaft

Address before: German Monheim

Patentee before: Bayer Landwirtschaftliche Kulturpflanzen Science AG

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120808

Termination date: 20170122

CF01 Termination of patent right due to non-payment of annual fee