ES2052288T3 - Procedimiento para la preparacion de acido cuadratico. - Google Patents

Procedimiento para la preparacion de acido cuadratico.

Info

Publication number
ES2052288T3
ES2052288T3 ES91101903T ES91101903T ES2052288T3 ES 2052288 T3 ES2052288 T3 ES 2052288T3 ES 91101903 T ES91101903 T ES 91101903T ES 91101903 T ES91101903 T ES 91101903T ES 2052288 T3 ES2052288 T3 ES 2052288T3
Authority
ES
Spain
Prior art keywords
preparation
procedure
quadratic acid
cyclobutenones
cyclobuten
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
ES91101903T
Other languages
English (en)
Inventor
Thomas Dr Scholl
Barry Dr Jackson
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.)
Lonza AG
Original Assignee
Lonza 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 Lonza AG filed Critical Lonza AG
Application granted granted Critical
Publication of ES2052288T3 publication Critical patent/ES2052288T3/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
    • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/587—Unsaturated compounds containing a keto groups being part of a ring
    • C07C49/703—Unsaturated compounds containing a keto groups being part of a ring containing hydroxy groups
    • C07C49/707—Unsaturated compounds containing a keto groups being part of a ring containing hydroxy groups a keto group being part of a three- to five-membered ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/42—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by hydrolysis
    • C07C45/43—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by hydrolysis of >CX2 groups, X being halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
    • C07C45/54—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition of compounds containing doubly bound oxygen atoms, e.g. esters
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/64—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by introduction of functional groups containing oxygen only in singly bound form
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/673—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by change of size of the carbon skeleton

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Steroid Compounds (AREA)

Abstract

SE DESCRIBE UN NUEVO PROCEDIMIENTO PARA LA PRODUCCION DE ACIDOS CUADRATICOS POR HALOGENACION, BIEN DE UNA 3-ACETOXI-2-CICLOBUTENO-1-ONA PURA O BIEN DE UNA 3-ACETOXI-2-CICLOBUTENO-1-ONA, CONTENIDOS EN EL RESIDUO DE DESTILACION DE LA PRODUCCION DE DIQUETES, PARA DAR UNA CICLOBUTENONA DE FORMULA GENERAL II Y, A CONTINUACION, HIDROLISIS DE ESTA CICLOBUTENONA PARA DAR EL ACIDO CUADRATICO. LAS CICLOBUTENONAS HALOGENAS SON PRODUCTOS NUEVOS EN EL PROCESO.
ES91101903T 1990-02-12 1991-02-11 Procedimiento para la preparacion de acido cuadratico. Expired - Lifetime ES2052288T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH43990 1990-02-12

Publications (1)

Publication Number Publication Date
ES2052288T3 true ES2052288T3 (es) 1994-07-01

Family

ID=4187060

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91101903T Expired - Lifetime ES2052288T3 (es) 1990-02-12 1991-02-11 Procedimiento para la preparacion de acido cuadratico.

Country Status (10)

Country Link
US (1) US5130492A (es)
EP (1) EP0442431B1 (es)
JP (1) JP2890856B2 (es)
AT (1) ATE105543T1 (es)
CA (1) CA2036002A1 (es)
DE (1) DE59101590D1 (es)
DK (1) DK0442431T3 (es)
ES (1) ES2052288T3 (es)
IE (1) IE64516B1 (es)
RU (1) RU2049768C1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5360937A (en) * 1992-03-24 1994-11-01 Lonza Ltd. 1,3-cyclobutanedione-bisketals, process for their production and their use
KR100468288B1 (ko) * 1996-04-09 2005-04-20 교와 유까 가부시키가이샤 3,4-디히드록시-3-시클로부텐-1,2-디온의제조방법
EP1676827A3 (en) 1997-09-05 2006-07-26 Kyowa Yuka Co., Ltd. Method for manufacturing 3-alkoxy-2-halogenocyclobutanone derivatives

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288854A (en) * 1963-07-05 1966-11-29 Eastman Kodak Co Addition of dialkylketenes to alkoxyacetylenes
DE1253266B (de) * 1963-08-24 1967-11-02 Huels Chemische Werke Ag Verfahren zur Herstellung von Dioxocyclobutendiol
US3456010A (en) * 1968-01-18 1969-07-15 American Cyanamid Co Chloro-hydroxy-polyfluorocycloalkenones
CH609837A5 (en) * 1975-05-30 1979-03-30 Ciba Geigy Ag Contact herbicide and its use
DE2623836C3 (de) * 1976-05-28 1978-12-21 Chemische Werke Huels Ag, 4370 Marl Verfahren zur Herstellung von Quadratsäure
US4104308A (en) * 1976-06-21 1978-08-01 International Business Machines Corporation Synthesis of squaric acid
CH621107A5 (es) * 1976-12-03 1981-01-15 Ciba Geigy Ag
DE2824558C3 (de) * 1978-06-05 1981-07-09 Chemische Werke Hüls AG, 4370 Marl Verfahren zur Herstellung von Quadratsäure
DE3314431A1 (de) * 1983-04-21 1984-10-25 Chemische Werke Hüls AG, 4370 Marl Verfahren zur herstellung von quadratsaeure

Also Published As

Publication number Publication date
EP0442431B1 (de) 1994-05-11
IE910308A1 (en) 1991-08-14
IE64516B1 (en) 1995-08-09
RU2049768C1 (ru) 1995-12-10
ATE105543T1 (de) 1994-05-15
DK0442431T3 (da) 1994-06-13
DE59101590D1 (de) 1994-06-16
US5130492A (en) 1992-07-14
CA2036002A1 (en) 1991-08-13
EP0442431A1 (de) 1991-08-21
JP2890856B2 (ja) 1999-05-17
JPH04330034A (ja) 1992-11-18

Similar Documents

Publication Publication Date Title
ES2008658B3 (es) Procedimiento de preparacion de monoesteres o diesteres del acido endoetano 9,10 dihidro antraceno dicarboxilico-11,11, nuevos monoesteres o diesteres asi preparados y su utilizacion para la preparacion de metilideno-malonatos simetricos o asimetricos.
BR8201535A (pt) Processo para a preparacao de triazolilmetil-oxiranos substituidos,bem como sua aplicacao
ATE7688T1 (de) 2.3-dialkoxypropylglycerylaether, verfahren zu deren herstellung und diese enthaltende kosmetische zusammensetzung.
DK226185A (da) Fremgangsmaade til fremstilling af cephalosporiner
GR3018227T3 (en) Process for the preparation of 3-benzoyl-benzofuran derivatives.
ES2052288T3 (es) Procedimiento para la preparacion de acido cuadratico.
PT86375A (fr) Procede de preparation de thienylethylamines
JPS53141247A (en) Preparation of substituteddvinyll cyclopropanecarboxylic benzylate
ATE8781T1 (de) Halogenierte derivate des 5-hydroxy-tetrahydro-2- furanons.
ES2164859T3 (es) Procedimiento para la preparacion de dialquil succinilsuccinatos.
BR8002452A (pt) Processo para a preparacao de esteres do acido estiril cic e acaricidas e sua aplicacao lopropanocargoxilico substituidos, composicoes inseticidas
DE3378413D1 (en) Spiro-2-aza-alkane-3-carbonitriles, process for their preparation and their use
EP0269514A3 (en) Derivatives of 2,2-dimethylcyclopropanecarboxylic acid bearing a saturated halogenated chain at c-3, process and intermediates for their preparation, their use as pesticides and compositions containing them
ATE229011T1 (de) Verfahren zur herstellung von glycidylethern
SE8005127L (sv) Sett att framstella 15-hydroxiimino-e-homoeburnanderivat
AT388736B (de) Neue stabile, kristalline formen des ceftazidime-t-butylesters und verfahren zu ihrer herstellung
ZA88640B (en) Novel imidazo-and triazolothiadiazines,a process for the preparation thereof,medicaments containing same,and the use thereof,and some intermediates formed in the preparation of the compounds mentioned
PT798297E (pt) "processo para a producao de 2-alcoxi-6-(trifluorometil)-pirimidin-4-ol"
ES2059187T3 (es) Pentaalquilcromanos sustituidos.
ES545080A0 (es) Procedimiento para la obtencion de arilacetatos halogenados
HUT38891A (en) Process for preparing halogenated 3,3-dimethyl-5-hexen-2-one-derivatives
DE59200472D1 (de) Verfahren zur Herstellung von substituierten Pentaalkylchromenen.
HRP921076B1 (en) Process for the preparation of opticalla active 2-(tetrahydropyran-2.yloxy)-1-propanol, new intermediate used in that process, and its application
ES520124A0 (es) Procedimiento para la obtencion de acido 1-(4-clorobenzoil)-5-metoxi-2-metil-3-indolacetoxiacetico.
ES2080149T3 (es) Procedimiento para la preparacion de cloruros de acido ciclopropan-carboxilico opticamente activos o racemicos.

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 442431

Country of ref document: ES