BR9404776A - Processo para a preparação de 2,2-difluorceteno silil acetais e processo para a preparação de ésteres de ácido alfa,alfa-diflúor-beta-sililóxi-1,3-dioxolano-4-propanóico - Google Patents

Processo para a preparação de 2,2-difluorceteno silil acetais e processo para a preparação de ésteres de ácido alfa,alfa-diflúor-beta-sililóxi-1,3-dioxolano-4-propanóico

Info

Publication number
BR9404776A
BR9404776A BR9404776A BR9404776A BR9404776A BR 9404776 A BR9404776 A BR 9404776A BR 9404776 A BR9404776 A BR 9404776A BR 9404776 A BR9404776 A BR 9404776A BR 9404776 A BR9404776 A BR 9404776A
Authority
BR
Brazil
Prior art keywords
alpha
preparation
silyloxy
dioxolane
difluoro
Prior art date
Application number
BR9404776A
Other languages
English (en)
Inventor
Thomas Charles Britton
Original Assignee
Lilly Co Eli
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 Lilly Co Eli filed Critical Lilly Co Eli
Publication of BR9404776A publication Critical patent/BR9404776A/pt

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)
BR9404776A 1993-11-30 1994-11-29 Processo para a preparação de 2,2-difluorceteno silil acetais e processo para a preparação de ésteres de ácido alfa,alfa-diflúor-beta-sililóxi-1,3-dioxolano-4-propanóico BR9404776A (pt)

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
BR9404776A true BR9404776A (pt) 1995-11-21

Family

ID=26856978

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9404776A BR9404776A (pt) 1993-11-30 1994-11-29 Processo para a preparação de 2,2-difluorceteno silil acetais e processo para a preparação de ésteres de ácido alfa,alfa-diflúor-beta-sililóxi-1,3-dioxolano-4-propanóico

Country Status (14)

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

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0779275A2 (en) 1995-12-13 1997-06-18 Eli Lilly And Company Alpha, Alpha - Difluoro-beta -hydroxy thiol esters and their synthesis
US5756775A (en) * 1995-12-13 1998-05-26 Eli Lilly And Company Process to make α,α-difluoro-β-hydroxyl thiol esters
US6001994A (en) * 1995-12-13 1999-12-14 Eli Lilly And Company Process for making gemcitabine hydrochloride
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
AR063464A1 (es) * 2006-11-03 2009-01-28 Basf Ag Procedimiento para preparar difluorometilpirazolil carboxilatos
EP2121618A1 (de) * 2006-12-21 2009-11-25 Basf Se Verfahren zur herstellung fluormethylsubstituierter heterocyclischer verbindungen
AR072447A1 (es) 2008-02-29 2010-09-01 Basf Se Proceso para preparar 2- alcoximetilen-4,4-difluoro-3-oxobutiratos de alquilo
AR073932A1 (es) 2008-05-02 2010-12-15 Basf Se Compuestos de esteres de acido 2-(aminometiliden)-4,4-difluoro-3- oxobutirico y procedimiento para su preparacion
WO2009133179A2 (de) * 2008-05-02 2009-11-05 Basf Se Verfahren zur herstellung halogensubstituierter 2-(aminomethyliden)-3-oxobuttersäureester
CN102015654B (zh) * 2008-05-05 2014-03-12 巴斯夫欧洲公司 制备1，3，4-取代的吡唑化合物的方法
CN102015649B (zh) 2008-05-08 2013-06-19 巴斯夫欧洲公司 制备芳基碳酰胺的方法
EP2307384B1 (en) * 2008-07-21 2012-04-25 Basf Se Process for preparing 1,3-disubstituted pyrazolecarboxylic esters
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
US4508880A (en) * 1981-06-30 1985-04-02 E. I. Du Pont De Nemours And Company "Living" polymers and process for their preparation
US4417034A (en) * 1981-06-30 1983-11-22 E. I. Du Pont De Nemours & Co. 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
US4824980A (en) * 1988-09-02 1989-04-25 Dow Corning Corporation Process to produce O-silyl O,N-ketene acetals
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
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
JPH07188260A (ja) 1995-07-25
HU9904356D0 (en) 2000-02-28
IL111793A0 (en) 1995-01-24
CA2136788C (en) 2005-01-25
DE69427955D1 (de) 2001-09-20
HUT70178A (en) 1995-09-28
HU9403423D0 (en) 1995-02-28
HU224710B1 (en) 2006-01-30
CA2136788A1 (en) 1995-05-31
EP0655454A1 (en) 1995-05-31
US5618951A (en) 1997-04-08
PT655454E (pt) 2001-12-28
IL111793A (en) 1998-12-06
KR950014125A (ko) 1995-06-15
HU219466B (hu) 2001-04-28
KR100332322B1 (ko) 2002-04-13
ES2159296T3 (es) 2001-10-01
FI945626A0 (fi) 1994-11-29
JP3615253B2 (ja) 2005-02-02
DK0655454T3 (da) 2001-10-08
FI115461B (fi) 2005-05-13
DE69427955T2 (de) 2002-04-18
KR100344363B1 (ko) 2002-11-30
ATE204283T1 (de) 2001-09-15
FI945626A (fi) 1995-05-31
EP0655454B1 (en) 2001-08-16

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Legal Events

Date Code Title Description
EG Technical examination (opinion): publication of technical examination (opinion)
FC Decision: refusal
CKFC Appeal: appeal against refusal