ES2058604T3 - Procedimiento para la preparacion de 1,3-ciclopentano-diona. - Google Patents

Procedimiento para la preparacion de 1,3-ciclopentano-diona.

Info

Publication number
ES2058604T3
ES2058604T3 ES90100030T ES90100030T ES2058604T3 ES 2058604 T3 ES2058604 T3 ES 2058604T3 ES 90100030 T ES90100030 T ES 90100030T ES 90100030 T ES90100030 T ES 90100030T ES 2058604 T3 ES2058604 T3 ES 2058604T3
Authority
ES
Spain
Prior art keywords
preparation
ester
diona
cyclopentane
procedure
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
ES90100030T
Other languages
English (en)
Inventor
Rudolf Dr Fuchs
John Dr Mcgarrity
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 ES2058604T3 publication Critical patent/ES2058604T3/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
    • 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)

Abstract

SE DESCRIBE UN NUEVO PROCEDIMIENTO PARA LA PRODUCCION DE 1, 3-CICLOPENTADIONA QUE SE UTILIZA COMO PRODUCTO INTERMEDIO UNIVERSAL PARA LA SINTESIS DE NUMEROSAS MATERIAS ACTIVAS. DICHO PROCEDIMIENTO CONSISTE EN: TRATAR UN ESTER DE ACIDO INDONICO CON UN ESTER HALOGENOALCOXI DEL ACIDO BUTENICO; SAPONIFICAR EL ESTER DE ACIDO BIS-(ALCOXICABONILO)-ALCOXI PENTENICO PARA CERRAR EL ANILLO DE ALCOXI-CARBONILO-ALCOXI-CICLOPENTENONA Y DESCARBOXILAR LA ALCOXI-CARBONILO-ALCOXI-CICLOPENTANONA PARA OBTENER EL PRODUCTO FINAL.
ES90100030T 1989-01-06 1990-01-02 Procedimiento para la preparacion de 1,3-ciclopentano-diona. Expired - Lifetime ES2058604T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH4189 1989-01-06

Publications (1)

Publication Number Publication Date
ES2058604T3 true ES2058604T3 (es) 1994-11-01

Family

ID=4177989

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90100030T Expired - Lifetime ES2058604T3 (es) 1989-01-06 1990-01-02 Procedimiento para la preparacion de 1,3-ciclopentano-diona.

Country Status (8)

Country Link
US (2) US5087760A (es)
EP (1) EP0378073B1 (es)
JP (1) JPH02221241A (es)
AT (1) ATE89543T1 (es)
CA (1) CA2007263A1 (es)
DE (1) DE59001456D1 (es)
DK (1) DK0378073T3 (es)
ES (1) ES2058604T3 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02221241A (ja) * 1989-01-06 1990-09-04 Lonza Ag １，３―シクロペンタンジオンの製造方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2281394A (en) * 1940-05-17 1942-04-28 Du Pont Oxy-esters of alpha-beta acids and unsaturated alcohols
US2346612A (en) * 1940-10-14 1944-04-11 Du Pont Allyl ether of diallyl malate
US2516308A (en) * 1946-12-26 1950-07-25 Jay W Forrester Variable speed induction motor system
US2786057A (en) * 1953-06-05 1957-03-19 American Home Prod Process of producing 5, 5-di-substituted barbituric acids and product produced thereby
BE647079A (es) * 1963-04-26
US3518296A (en) * 1964-04-22 1970-06-30 Roussel Uclaf Process of preparation of alkyl cyclopentane diones and intermediates therefor
DE1230022B (de) * 1964-10-03 1966-12-08 Hoechst Ag Verfahren zur Herstellung von halogenierten, aliphatischen bzw. 4- oder 5gliedrigen cycloaliphatischen alpha, beta-ungesaettigten Ketonen
US3531504A (en) * 1965-07-13 1970-09-29 Schering Corp Process for the preparation of cyclic ketones and cyclic aldehydes and products produced thereby
US3922296A (en) * 1973-12-19 1975-11-25 El Paso Products Co Novel process for the preparation of cyclopentane-1, 2-diones and intermediates therefor
US3931322A (en) * 1974-01-25 1976-01-06 Hoffmann-La Roche Inc. Synthesis of 2-alkyl-cyclopentan-1,3-diones
US4132726A (en) * 1974-12-27 1979-01-02 Teijin Limited Process for the preparation of 4-hydroxycyclopent-2-en-1-one derivatives
US4168280A (en) * 1978-05-19 1979-09-18 El Paso Products Company Method for synthesis of 2-hydroxy-3-methyl cyclopent-2-ene-1-one
FR2446272A1 (fr) * 1978-12-13 1980-08-08 Roussel Uclaf Nouveaux derives substitues du penten-2-yle, leur procede de preparation et leur application dans la synthese d'un precurseur de l'acide chrysanthemique
WO1987003287A2 (en) * 1985-11-20 1987-06-04 L. Givaudan & Cie Societe Anonyme PROCESS FOR PREPARING alpha-HYDROXY CARBONYL COMPOUNDS
JPH02221241A (ja) * 1989-01-06 1990-09-04 Lonza Ag １，３―シクロペンタンジオンの製造方法

Also Published As

Publication number Publication date
ATE89543T1 (de) 1993-06-15
JPH02221241A (ja) 1990-09-04
EP0378073A1 (de) 1990-07-18
US5113012A (en) 1992-05-12
US5087760A (en) 1992-02-11
DE59001456D1 (de) 1993-06-24
CA2007263A1 (en) 1990-07-06
DK0378073T3 (da) 1993-06-14
EP0378073B1 (de) 1993-05-19

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