CH618434A5 - - Google Patents

Download PDF

Info

Publication number
CH618434A5
CH618434A5 CH53077A CH53077A CH618434A5 CH 618434 A5 CH618434 A5 CH 618434A5 CH 53077 A CH53077 A CH 53077A CH 53077 A CH53077 A CH 53077A CH 618434 A5 CH618434 A5 CH 618434A5
Authority
CH
Switzerland
Prior art keywords
formula
methyl
reaction
acid
dichloro
Prior art date
Application number
CH53077A
Other languages
English (en)
French (fr)
Inventor
Per Dausell Klemmensen
Hans Kolind-Andersen
Hans Berg Madsen
Original Assignee
Cheminova As
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
Priority claimed from GB238076A external-priority patent/GB1503858A/en
Application filed by Cheminova As filed Critical Cheminova As
Publication of CH618434A5 publication Critical patent/CH618434A5/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C07D307/30—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D307/32—Oxygen atoms
    • C07D307/33—Oxygen atoms in position 2, the oxygen atom being in its keto or unsubstituted enol form
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/35—Preparation of halogenated hydrocarbons by reactions not affecting the number of carbon or of halogen atoms in the reaction
    • C07C17/358—Preparation of halogenated hydrocarbons by reactions not affecting the number of carbon or of halogen atoms in the reaction by isomerisation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/361—Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms
    • C07C17/363—Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms by elimination of carboxyl groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
    • C07D303/02—Compounds containing oxirane rings
    • C07D303/08—Compounds containing oxirane rings with hydrocarbon radicals, substituted by halogen atoms, nitro radicals or nitroso radicals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Epoxy Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Furan Compounds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
CH53077A 1976-01-21 1977-01-17 CH618434A5 (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB238076A GB1503858A (en) 1976-01-21 1976-01-21 Production of(2,2-disubstituted vinyl)-alpha-butyrolactones
GB2163176 1976-05-25

Publications (1)

Publication Number Publication Date
CH618434A5 true CH618434A5 (it) 1980-07-31

Family

ID=26237476

Family Applications (1)

Application Number Title Priority Date Filing Date
CH53077A CH618434A5 (it) 1976-01-21 1977-01-17

Country Status (9)

Country Link
US (1) US4229353A (it)
JP (1) JPS5291855A (it)
CA (1) CA1086324A (it)
CH (1) CH618434A5 (it)
DE (1) DE2702222C2 (it)
ES (1) ES455202A1 (it)
FR (1) FR2338939A1 (it)
IT (1) IT1078770B (it)
NL (1) NL7700615A (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1523816A (en) * 1976-07-19 1978-09-06 Cheminova As Preparation of (2,2-disubstituted vinyl)-y-butyrolactione
DE2710151A1 (de) * 1977-03-09 1978-09-14 Bayer Ag Verfahren zur herstellung von dihalogenvinyl-gamma-butyrolactonen
DE2747824A1 (de) * 1977-10-26 1979-05-03 Bayer Ag Verfahren zur herstellung von halogenvinyl-gamma-butyrolactonen
DE2916321A1 (de) * 1979-04-23 1980-11-06 Bayer Ag Verfahren zur herstellung von styryl- cyclopropan-carbonsaeureestern und neue zwischenprodukte dafuer
HU183505B (en) * 1981-07-03 1984-05-28 Chinoin Gyogyszer Es Vegyeszet Process for cleaving 1-substituted 2,2,2-trihalogenoethyl-esters
IT1200400B (it) * 1985-03-05 1989-01-18 Montedison Spa Procedimento per la preparazione di 2-alchil ciclopent-2-enoni

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2110782A5 (it) * 1970-10-30 1972-06-02 Roure Bertrand Dupont Sa
GB1523816A (en) * 1976-07-19 1978-09-06 Cheminova As Preparation of (2,2-disubstituted vinyl)-y-butyrolactione

Also Published As

Publication number Publication date
FR2338939A1 (fr) 1977-08-19
DE2702222C2 (de) 1986-06-12
JPS5291855A (en) 1977-08-02
DE2702222A1 (de) 1977-08-04
JPS616829B2 (it) 1986-03-01
FR2338939B1 (it) 1982-06-11
US4229353A (en) 1980-10-21
ES455202A1 (es) 1977-12-16
NL7700615A (nl) 1977-07-25
IT1078770B (it) 1985-05-08
CA1086324A (en) 1980-09-23

Similar Documents

Publication Publication Date Title
CH652385A5 (fr) 5-(2-facultativement substitue-4-trifluoromethyl-6-facultativement substitue-phenoxy)-2-nitro, -halo ou -cyano-phenylcarbonyle alpha substitues-oximes et derives carbonyles correspondants.
CH618434A5 (it)
CA1084524A (fr) Procede de fonctionnalisation de radicaux perfluores
EP0601918B1 (fr) Procédé de préparation de la vitamine A et composés intermédiaires utiles pour ce procédé
EP0145554B1 (fr) Procédé de préparation de dérivés éthyléniques chlorés
CH620417A5 (it)
EP0216659B1 (fr) Nouveaux halogénoformiates de dihalogéno-2,2 vinyle, leur procédé de préparation et leurs applications
EP0012390B1 (fr) Procédé pour la préparation de la muscone et composés pyranniques intermédiaires
EP0177398B1 (fr) Dérivés chlores de l'hexadécène, leur préparation et leur emploi dans la synthèse de la vitamine e
CH640496A5 (fr) Procede pour la preparation de beta-damascenone.
EP0589784B1 (fr) Dérivé du 2-éthyl benzo [b] thiophène, son procédé de préparation et son utilisation comme intermédiaire de synthèse
FR2565968A1 (fr) Procede d'obtention d'intermediaires de la preparation de pyrethroides
FR2555164A1 (fr) Procede de preparation de derives acetyleniques, nouveaux derives obtenus et leur emploi
EP0466583B1 (fr) Procédé de préparation de la diméthyl-2,5 hydroxy-4 (2H)furanone-3
EP0176435B1 (fr) Dérivés du tocophérol, leur préparation et leur emploi
FR2471360A1 (fr) Halogenocyclobutanones, procede pour leur preparation et produits intermediaires de leur preparation
EP0179685B1 (fr) Procédé de préparation d'esters allyliques tertiaires éventuellement halogénés
FR2487338A1 (fr) Procede perfectionne de preparation du (methoxy-2 ethyl)-4 phenol
WO1989011470A1 (fr) Dihalogeno-3,3 fluoro-2 propenols-1, leur procede de preparation et leur utilisation pour la synthese d'acides fluoro-2 acryliques et dihalogeno-3,3 fluoro-2 acryliques et de leurs derives
CH640821A5 (fr) Composes enamines et leur utilisation pour la preparation de derives amines de cisbicyclooctyle.
JPS6366302B2 (it)
CH590810A5 (en) Organoleptic oxygenated alicyclic derivs - giving galbanum or juniper oil-like odours to perfume compsns. soaps etc.
FR2501672A1 (fr) Procede de preparation du 1,1-dichloro-4-methyl-1,3-pentadiene et produits intermediaires de cette preparation
FR2565974A1 (fr) Nouveau procede de p
JPS6141914B2 (it)

Legal Events

Date Code Title Description
PL Patent ceased