ES2133183T3 - Procedimiento para la obtencion de 2,2-difluorbenzo(1,3)dioxocarbaldehidos. - Google Patents

Procedimiento para la obtencion de 2,2-difluorbenzo(1,3)dioxocarbaldehidos.

Info

Publication number
ES2133183T3
ES2133183T3 ES96112760T ES96112760T ES2133183T3 ES 2133183 T3 ES2133183 T3 ES 2133183T3 ES 96112760 T ES96112760 T ES 96112760T ES 96112760 T ES96112760 T ES 96112760T ES 2133183 T3 ES2133183 T3 ES 2133183T3
Authority
ES
Spain
Prior art keywords
dioxocarbaldehidos
difluorbenzo
procedure
obtaining
dichlorometil
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
ES96112760T
Other languages
English (en)
Inventor
Peter Dr Andres
Albrecht Dr Marhold
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 ES2133183T3 publication Critical patent/ES2133183T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • C07D317/44—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 ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D317/46—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 ortho- or peri-condensed with carbocyclic rings or ring systems condensed with one six-membered ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)

Abstract

SE OBTIENEN DE MANERA ESPECIALMENTE VENTAJOSA 2,2-DIFLUOROBENZO-(1,3)DIOXO-CARBALDEHIDOS, SI SE CLORA METIL-BENZO-[1,3]DIOXOLES, SE FLUORA EL DICLOROMETIL-2,2-DICLORO-BENZO-[1,3]DIOXOL OBTENIDO CON ACIDO FLUORHIDRICO, Y SE HACE REACCIONAR EL DICLOROMETIL-2,2-DIFLUOROBENZO-[1,3]-DIOXOL OBTENIDO CON UN ACIDO CARBOXILICO.
ES96112760T 1995-08-21 1996-08-08 Procedimiento para la obtencion de 2,2-difluorbenzo(1,3)dioxocarbaldehidos. Expired - Lifetime ES2133183T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19530637A DE19530637A1 (de) 1995-08-21 1995-08-21 Verfahren zur Herstellung von 2,2-Difluorbenzo[1.3]dioxolcarbaldehyden

Publications (1)

Publication Number Publication Date
ES2133183T3 true ES2133183T3 (es) 1999-09-01

Family

ID=7769957

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96112760T Expired - Lifetime ES2133183T3 (es) 1995-08-21 1996-08-08 Procedimiento para la obtencion de 2,2-difluorbenzo(1,3)dioxocarbaldehidos.

Country Status (6)

Country Link
US (1) US5637737A (es)
EP (1) EP0759433B1 (es)
JP (1) JPH0967366A (es)
CA (1) CA2183491A1 (es)
DE (2) DE19530637A1 (es)
ES (1) ES2133183T3 (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20031563A1 (it) * 2003-07-30 2005-01-31 Miteni Spa Processo di fluorurazione di eteri.
DE102004024010A1 (de) * 2004-05-14 2005-12-01 Bayer Chemicals Ag Verfahren zur Herstellung von Difluorbenzo-1,3-dioxol-5-carbonsäurederivaten
US7417165B2 (en) * 2005-04-06 2008-08-26 Teva Pharmaceutical Industries Ltd. Crystalline forms of pregabalin
US7488846B2 (en) * 2005-04-11 2009-02-10 Teva Pharmaceuical Industries Ltd. Pregabalin free of lactam and a process for preparation thereof
EP1768950A2 (en) * 2005-04-11 2007-04-04 Teva Pharmaceutical Industries Ltd. Process for making (s)-pregabalin
ATE486841T1 (de) * 2005-05-10 2010-11-15 Teva Pharma Verfahren zur herstellung von pregabalin und salzen daraus
WO2006122255A1 (en) 2005-05-10 2006-11-16 Teva Pharmaceutical Industries Ltd. Pregabalin free of isobutylglutaric acid and a process for preparation thereof
MX2007014129A (es) * 2005-05-10 2008-01-11 Teva Pharma Resolucion optica del acido 3-carbamoilmetil-5-metil hexanoico.
ES2398579T3 (es) * 2005-09-19 2013-03-20 Teva Pharmaceutical Industries Ltd Una síntesis asimétrica de ácido (S)-(+)-3-(aminometil)-5-metilhexanoico
US20070259917A1 (en) * 2006-04-24 2007-11-08 Kansal Vinod K Processes for the synthesis of 3-isobutylglutaric acid
KR20080027880A (ko) * 2006-05-24 2008-03-28 테바 파마슈티컬 인더스트리즈 리미티드 Ｒ-(+)-3-(카바모일메틸)-5-메틸헥산산 및 이의 염의 제조방법
EP1912931A2 (en) * 2006-05-31 2008-04-23 Teva Pharmaceutical Industries Ltd. Preparation of (s)-pregabalin-nitrile
KR20080036060A (ko) * 2006-05-31 2008-04-24 테바 파마슈티컬 인더스트리즈 리미티드 프레가발린의 중간체의 제조에 효소 분할을 이용하는 방법
EP2021318A2 (en) * 2007-03-22 2009-02-11 Teva Pharmaceutical Industries Ltd. Synthesis of (s)-(+)-3-(aminomethyl)-5-methyl hexanoic acid
KR20090101462A (ko) * 2007-10-03 2009-09-28 테바 파마슈티컬 인더스트리즈 리미티드 프레가발린-4-엘리미네이트, 프레가발린 5-엘리미네이트, 기준 마커 및 표준물로서의 이들의 용도, 및 이들을 낮은 수준으로 함유하는 프레가발린의 제조 방법
US20100087525A1 (en) * 2008-06-23 2010-04-08 Lilach Hedvati Stereoselective enzymatic synthesis of (s) or (r)-iso-butyl-glutaric ester
CN101851225B (zh) * 2010-06-09 2012-08-08 山东铂源化学有限公司 一种咯菌腈中间体4-醛基-2,2-二氟苯并二恶茂的合成方法
CN103814023B (zh) * 2011-09-29 2015-09-23 三井化学Agro株式会社 4,4-二氟-3,4-二氢异喹啉衍生物的制造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3716652A1 (de) * 1987-05-19 1988-12-08 Bayer Ag Dioxyalkylenaryl-dihydropyridine, zwischenprodukte zu ihrer herstellung, verfahren zu ihrer herstellung und ihre verwendung
CH687877A5 (de) * 1988-03-18 1997-03-14 Ciba Geigy Ag 2,2-Difluorbenzo-1,3-dioxol-4-carbaldehyd.
US5194628A (en) * 1988-03-18 1993-03-16 Ciba-Geigy Corporation Process for the preparation of substituted difluorobenzo-1,3-dioxoles
CH676119A5 (en) * 1988-06-22 1990-12-14 Ciba Geigy Ag 2,2-Di:chloro-1,3-benzodioxole derivs. prodn. - by reacting 2-unsubstituted cpd. with chlorine and phosphorus tri:chloride, useful as pesticide intermediates
DE4133155A1 (de) * 1991-10-07 1993-04-08 Bayer Ag Verfahren zur herstellung von 2,2-difluorbenzo (1,3)-dioxol-carbaldehyden und neuen zwischenprodukten

Also Published As

Publication number Publication date
EP0759433A1 (de) 1997-02-26
DE19530637A1 (de) 1997-02-27
JPH0967366A (ja) 1997-03-11
US5637737A (en) 1997-06-10
DE59602230D1 (de) 1999-07-22
EP0759433B1 (de) 1999-06-16
CA2183491A1 (en) 1997-02-22

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