ES2159296T3 - Procedimiento para preparar 2,2-difluorocetena silil acetales y esteres de acido alfa,alfa-difluoro-beta-sililoxi-1,3-dioxolano-4-propanoico. - Google Patents

Procedimiento para preparar 2,2-difluorocetena silil acetales y esteres de acido alfa,alfa-difluoro-beta-sililoxi-1,3-dioxolano-4-propanoico.

Info

Publication number
ES2159296T3
ES2159296T3 ES94308806T ES94308806T ES2159296T3 ES 2159296 T3 ES2159296 T3 ES 2159296T3 ES 94308806 T ES94308806 T ES 94308806T ES 94308806 T ES94308806 T ES 94308806T ES 2159296 T3 ES2159296 T3 ES 2159296T3
Authority
ES
Spain
Prior art keywords
acetals
difluoro
beta
esters
sililoxi
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
ES94308806T
Other languages
English (en)
Inventor
Thomas Charles Britton
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.)
Eli Lilly and Co
Original Assignee
Eli Lilly and Co
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 Eli Lilly and Co filed Critical Eli Lilly and Co
Application granted granted Critical
Publication of ES2159296T3 publication Critical patent/ES2159296T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02—Silicon compounds
    • C07F7/08—Compounds having one or more C—Si linkages
    • C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
    • C07F7/1804—Compounds having Si-O-C linkages
    • C07F7/1872—Preparation; Treatments not provided for in C07F7/20
    • C07F7/188—Preparation; Treatments not provided for in C07F7/20 by reactions involving the formation of Si-O linkages

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)

Abstract

UN PROCESO PAR PREPARAR 2,2-DIFLUOROCENTONA SILIL ACETALES Y ACIDOS ESTERES A,A-DIFLUORO-B-SILILOXI-1,3-DIOXOLANO-4-PROPANOICO QUE USAN ESTOS ACETALES.
ES94308806T 1993-11-30 1994-11-29 Procedimiento para preparar 2,2-difluorocetena silil acetales y esteres de acido alfa,alfa-difluoro-beta-sililoxi-1,3-dioxolano-4-propanoico. Expired - Lifetime ES2159296T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16054993A 1993-11-30 1993-11-30
US30712294A 1994-09-16 1994-09-16

Publications (1)

Publication Number Publication Date
ES2159296T3 true ES2159296T3 (es) 2001-10-01

Family

ID=26856978

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94308806T Expired - Lifetime ES2159296T3 (es) 1993-11-30 1994-11-29 Procedimiento para preparar 2,2-difluorocetena silil acetales y esteres de acido alfa,alfa-difluoro-beta-sililoxi-1,3-dioxolano-4-propanoico.

Country Status (14)

Country Link
US (1) US5618951A (es)
EP (1) EP0655454B1 (es)
JP (1) JP3615253B2 (es)
KR (2) KR100344363B1 (es)
AT (1) ATE204283T1 (es)
BR (1) BR9404776A (es)
CA (1) CA2136788C (es)
DE (1) DE69427955T2 (es)
DK (1) DK0655454T3 (es)
ES (1) ES2159296T3 (es)
FI (1) FI115461B (es)
HU (2) HU224710B1 (es)
IL (1) IL111793A (es)
PT (1) PT655454E (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6001994A (en) * 1995-12-13 1999-12-14 Eli Lilly And Company Process for making gemcitabine hydrochloride
US5756775A (en) * 1995-12-13 1998-05-26 Eli Lilly And Company Process to make α,α-difluoro-β-hydroxyl thiol esters
AU1289697A (en) 1995-12-13 1997-07-03 Eli Lilly And Company Alpha, alpha-difluoro-beta-hydroxy thiol esters and their synthesis
US7067600B2 (en) * 2001-08-16 2006-06-27 The Goodyear Tire & Rubber Company Modified silane compounds
KR100578616B1 (ko) * 2004-07-23 2006-05-10 한미약품 주식회사 Ｄ-에리트로-2,2-다이플루오로-2-데옥시-1-옥소라이보스화합물의 제조방법
PL2086944T3 (pl) * 2006-11-03 2010-06-30 Basf Se Sposób wytwarzania difluormetylopirazolilokarboksylanów
CA2671527A1 (en) * 2006-12-21 2008-07-03 Basf Se Process for preparing fluoromethyl-substituted heterocyclic compounds
EA019427B1 (ru) 2008-02-29 2014-03-31 Басф Се Способ получения алкил 2-алкоксиметилен-4,4-дифтор-3-оксобутиратов
EP2300417B1 (de) 2008-05-02 2015-07-22 Basf Se Verfahren zur herstellung von 2-(aminomethyliden)-4,4-difluor-3-oxobuttersäureestern
EP2297111B1 (de) * 2008-05-02 2012-06-20 Basf Se Verfahren zur herstellung halogensubstituierter 2-(aminomethyliden)-3-oxobuttersäureester
KR20110011652A (ko) * 2008-05-05 2011-02-08 바스프 에스이 1,3,4-치환된 피라졸 화합물의 제조 방법
UA103323C2 (ru) 2008-05-08 2013-10-10 Басф Се Способ получения арилкарбоксамидов
CN102099343B (zh) * 2008-07-21 2014-06-04 巴斯夫欧洲公司 制备1,3-二取代的吡唑羧酸酯的方法
JP5540776B2 (ja) * 2010-03-05 2014-07-02 セントラル硝子株式会社 ジフルオロ酢酸エステルの製造方法
CN113603669A (zh) * 2021-08-06 2021-11-05 江苏八巨药业有限公司 一种吉西他滨关键中间体的制备方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417034A (en) * 1981-06-30 1983-11-22 E. I. Du Pont De Nemours & Co. Living polymers and process for their preparation
US4508880A (en) * 1981-06-30 1985-04-02 E. I. Du Pont De Nemours And Company "Living" polymers and process for their preparation
US4414372A (en) * 1982-06-17 1983-11-08 E. I. Du Pont De Nemours & Co. Process for preparing living polymers
US4482729A (en) * 1984-03-04 1984-11-13 Daikin Kogyo Co., Ltd. Fluoroalkyl silyl ketene acetals and a process for preparing the same
US4780554A (en) * 1984-11-20 1988-10-25 Union Carbide Corporation O-silylated ketene acetals and enol ethers and method of preparation
US4754046A (en) * 1987-06-25 1988-06-28 Dow Corning Corporation Stabilized silyl ketene acetals
US4824981A (en) * 1987-07-06 1989-04-25 Dow Corning Corporation Process to produce silyl ketene acetals
US4746750A (en) * 1987-08-31 1988-05-24 Dow Corning Corporation Synthesis of silyl ketene acetal from allyl 2-organoacrylates
JP2594605B2 (ja) * 1988-03-12 1997-03-26 鹿島石油株式会社 光学活性なα，α−ジフルオロ−β−ヒドロキシカルボニル化合物
JPH0267250A (ja) * 1988-09-02 1990-03-07 Asahi Glass Co Ltd ２，２‐ジフルオロ‐３‐ヒドロキシカルボン酸誘導体の製造法
US4824980A (en) * 1988-09-02 1989-04-25 Dow Corning Corporation Process to produce O-silyl O,N-ketene acetals
KR900012940A (ko) * 1989-02-14 1990-09-03 사와무라 하루오 유기규소 화합물의 제조방법
JPH02270841A (ja) * 1989-04-12 1990-11-05 Asahi Glass Co Ltd ２，２―ジフルオロ―３，４，５―トリヒドロキシカルボン酸誘導体の製造法

Also Published As

Publication number Publication date
CA2136788A1 (en) 1995-05-31
EP0655454B1 (en) 2001-08-16
PT655454E (pt) 2001-12-28
EP0655454A1 (en) 1995-05-31
HU9904356D0 (en) 2000-02-28
HUT70178A (en) 1995-09-28
FI945626A (fi) 1995-05-31
FI115461B (fi) 2005-05-13
KR950014125A (ko) 1995-06-15
JP3615253B2 (ja) 2005-02-02
KR100344363B1 (ko) 2002-11-30
DE69427955T2 (de) 2002-04-18
US5618951A (en) 1997-04-08
HU9403423D0 (en) 1995-02-28
ATE204283T1 (de) 2001-09-15
HU224710B1 (en) 2006-01-30
DE69427955D1 (de) 2001-09-20
CA2136788C (en) 2005-01-25
FI945626A0 (fi) 1994-11-29
DK0655454T3 (da) 2001-10-08
IL111793A (en) 1998-12-06
JPH07188260A (ja) 1995-07-25
KR100332322B1 (ko) 2002-04-13
IL111793A0 (en) 1995-01-24
BR9404776A (pt) 1995-11-21
HU219466B (hu) 2001-04-28

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