ES2178312T3 - Procedimiento para la obtencion de 2,4-dicloro-3,5-dimetilfluorbenceno - Google Patents

Procedimiento para la obtencion de 2,4-dicloro-3,5-dimetilfluorbenceno

Info

Publication number
ES2178312T3
ES2178312T3 ES99103752T ES99103752T ES2178312T3 ES 2178312 T3 ES2178312 T3 ES 2178312T3 ES 99103752 T ES99103752 T ES 99103752T ES 99103752 T ES99103752 T ES 99103752T ES 2178312 T3 ES2178312 T3 ES 2178312T3
Authority
ES
Spain
Prior art keywords
dimethylfluorbenzene
dicloro
procedure
obtaining
dimethylfluorobenzene
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 - Lifetime
Application number
ES99103752T
Other languages
English (en)
Inventor
Franz-Josef Dr Mais
Robert Horst Dr Bloodworth
Dem Bruch Karsten Dr Von
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 AG
Original Assignee
Bayer 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 AG filed Critical Bayer AG
Application granted granted Critical
Publication of ES2178312T3 publication Critical patent/ES2178312T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
    • C07C17/12—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms in the ring of aromatic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)

Abstract

2,4 - DICLORO - 3,5 - DIMETILFLUROBENCENO SE PUEDE OBTENER CON ELEVADAS SELECTIVIDADES DE ISOMEROS, SI SE CLORA 3,5 DIMETILFLUOROBENCENO EN PRESENCIA DE CATALIZADORES DE FRIEDELCRAFTS Y DE UN COCATALIZADOR QUE CONTIENE AZUFRE.
ES99103752T 1998-03-11 1999-02-26 Procedimiento para la obtencion de 2,4-dicloro-3,5-dimetilfluorbenceno Expired - Lifetime ES2178312T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19810392A DE19810392A1 (de) 1998-03-11 1998-03-11 Verfahren zur Herstellung von 2,4-Dichlor-3,5-dimethylfluorbenzol

Publications (1)

Publication Number Publication Date
ES2178312T3 true ES2178312T3 (es) 2002-12-16

Family

ID=7860430

Family Applications (1)

Application Number Title Priority Date Filing Date
ES99103752T Expired - Lifetime ES2178312T3 (es) 1998-03-11 1999-02-26 Procedimiento para la obtencion de 2,4-dicloro-3,5-dimetilfluorbenceno

Country Status (6)

Country Link
US (1) US6150571A (es)
EP (1) EP0945416B1 (es)
JP (1) JPH11322641A (es)
AT (1) ATE219037T1 (es)
DE (2) DE19810392A1 (es)
ES (1) ES2178312T3 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008091624A2 (en) * 2007-01-22 2008-07-31 Teva Pharmaceutical Industries Ltd. Polymorphic forms of rosiglitazone hydrobromide and processes for preparation thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60125251A (ja) * 1983-12-13 1985-07-04 Ihara Chem Ind Co Ltd アルキルベンゼンの核ハロゲン化用触媒
EP0340581B1 (de) * 1988-05-06 1992-03-18 Bayer Ag Verfahren zur Kernchlorierung von aromatischen Kohlenwasserstoffen
DE4340854A1 (de) * 1993-12-01 1995-09-14 Bayer Ag Verfahren zur Herstellung von 3-Fluor-4,6-dichlortoluol
DE4445548A1 (de) * 1994-12-20 1996-06-27 Bayer Ag Verfahren zur Herstellung von 3-Fluor-4,6-dichlortoluol
DE19717231A1 (de) * 1997-04-24 1998-10-29 Bayer Ag 3-Cyano-2,4,5-trifluor-benzoylfluorid

Also Published As

Publication number Publication date
DE19810392A1 (de) 1999-09-16
EP0945416A1 (de) 1999-09-29
ATE219037T1 (de) 2002-06-15
EP0945416B1 (de) 2002-06-12
US6150571A (en) 2000-11-21
JPH11322641A (ja) 1999-11-24
DE59901695D1 (de) 2002-07-18

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