CH622764A5 - - Google Patents

Download PDF

Info

Publication number
CH622764A5
CH622764A5 CH1043577A CH1043577A CH622764A5 CH 622764 A5 CH622764 A5 CH 622764A5 CH 1043577 A CH1043577 A CH 1043577A CH 1043577 A CH1043577 A CH 1043577A CH 622764 A5 CH622764 A5 CH 622764A5
Authority
CH
Switzerland
Prior art keywords
ene
formula
pent
strong base
spiro
Prior art date
Application number
CH1043577A
Other languages
English (en)
French (fr)
Inventor
Ferdinand Naef
Rene Decorzant
Original Assignee
Firmenich & Cie
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 Firmenich & Cie filed Critical Firmenich & Cie
Priority to CH1043577A priority Critical patent/CH622764A5/fr
Priority to US05/934,828 priority patent/US4176139A/en
Priority to DE2836477A priority patent/DE2836477C2/de
Priority to GB7834250A priority patent/GB2004274B/en
Priority to GR57069A priority patent/GR72909B/el
Priority to JP10376278A priority patent/JPS5444640A/ja
Priority to NL7808791A priority patent/NL7808791A/xx
Priority to FR7824753A priority patent/FR2401129A1/fr
Publication of CH622764A5 publication Critical patent/CH622764A5/fr

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
    • C07C49/647—Unsaturated compounds containing a keto groups being part of a ring having unsaturation outside the ring
    • C07C49/653—Unsaturated compounds containing a keto groups being part of a ring having unsaturation outside the ring polycyclic
    • 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
    • C07C45/68—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 increase in the number of carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Epoxy Compounds (AREA)
CH1043577A 1977-08-26 1977-08-26 CH622764A5 (d)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CH1043577A CH622764A5 (d) 1977-08-26 1977-08-26
US05/934,828 US4176139A (en) 1977-08-26 1978-08-18 Process for preparing unsaturated spiranic derivatives
DE2836477A DE2836477C2 (de) 1977-08-26 1978-08-21 Verfahren zur Herstellung von ungesättigten Spiro[2.4]-heptanonen und Spiro[2.5]octanonen
GB7834250A GB2004274B (en) 1977-08-26 1978-08-23 Process for preparing unsaturated spiranic derivatives
GR57069A GR72909B (d) 1977-08-26 1978-08-24
JP10376278A JPS5444640A (en) 1977-08-26 1978-08-25 Manufacture of unsaturated spirooderivatives
NL7808791A NL7808791A (nl) 1977-08-26 1978-08-25 Werkwijze ter bereiding van onverzadigde spiraanderiva- ten.
FR7824753A FR2401129A1 (fr) 1977-08-26 1978-08-25 Procede pour la preparation de composes spiranniques insatures utiles en parfumerie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1043577A CH622764A5 (d) 1977-08-26 1977-08-26

Publications (1)

Publication Number Publication Date
CH622764A5 true CH622764A5 (d) 1981-04-30

Family

ID=4363198

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1043577A CH622764A5 (d) 1977-08-26 1977-08-26

Country Status (8)

Country Link
US (1) US4176139A (d)
JP (1) JPS5444640A (d)
CH (1) CH622764A5 (d)
DE (1) DE2836477C2 (d)
FR (1) FR2401129A1 (d)
GB (1) GB2004274B (d)
GR (1) GR72909B (d)
NL (1) NL7808791A (d)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115003649A (zh) * 2020-03-05 2022-09-02 弗门尼舍有限公司 制备加香中间体的方法

Also Published As

Publication number Publication date
FR2401129A1 (fr) 1979-03-23
DE2836477A1 (de) 1979-03-01
JPS5444640A (en) 1979-04-09
FR2401129B1 (d) 1980-09-19
GB2004274B (en) 1982-02-17
GB2004274A (en) 1979-03-28
JPS5741455B2 (d) 1982-09-03
GR72909B (d) 1984-01-04
US4176139A (en) 1979-11-27
DE2836477C2 (de) 1983-06-01
NL7808791A (nl) 1979-02-28

Similar Documents

Publication Publication Date Title
EP0405427A2 (fr) Nouveaux composés aromatiques, leur procédé de préparation et leur utilisation à titre d'ingrédients parfumants
EP0378825B1 (fr) Esters alicycliques et leur utilisation à titre d'ingrédients parfumants
FR2475045A1 (fr) 16-oxa-3-methylbicyclo(10.3.1) pentadec-1-ene, procede d'obtention et application
CH622764A5 (d)
EP1067118B1 (en) Cyclopentylalkyl-nitriles and the use of odoriferous cyclopentylalkyl derivatives as fragrances
EP0601918B1 (fr) Procédé de préparation de la vitamine A et composés intermédiaires utiles pour ce procédé
EP0013995B1 (fr) Procédé pour la préparation de cétones macrocycliques acétyleniques
CA2133792C (fr) Nouveaux intermediaires de preparation de la vitamine a et des carotenoides et leur procede de preparation
CH629468A5 (fr) Composes alicycliques insatures, leur utilisation a titre d'ingredients parfumants et procede pour leur preparation.
EP0145554B1 (fr) Procédé de préparation de dérivés éthyléniques chlorés
EP0127536B1 (fr) Procédé de préparation de composés carbonyles alpha-delta-diéthyléniques
CH626319A5 (en) Process for the preparation of lower alkyl esters of racemic trans-2,2-disubstituted-1,3-cyclopropanedicarboxylic acids
CH640496A5 (fr) Procede pour la preparation de beta-damascenone.
EP0070995B1 (fr) Procédé pour la préparation de cétones cycloaliphatiques polyinsaturées
Verhé et al. Favorskii-type rearrangement of chlorinated acetylacetone monomethyl enol ethers. Presumptive evidence for a cyclopropane dimethyl acetal intermediate
EP0406065B1 (fr) Procédé de préparation de la pseudo-ionone
CH537352A (fr) Procédé pour la préparation de cétones insaturées
EP0155885B1 (fr) Dihalogéno-2-3-fluoro-pronanals, leur procédé d'obtention et leurs applications à l'obtention d'halogénures et d'esters de dihalogéno-2,3-fluoro-2-propanoyles et de fluoroacrylates d'alkyle ou d'aryle
EP0093840B1 (fr) Procédé pour la préparation de composés cétoniques
US3734967A (en) 1-(4-oxopent-1-enyl)-1,3-dimethylcyclohex-2-ene,1-(4-oxopent-1-enyl)-1,3-di-methylcyclohex-3-ene and their methyl homologs
EP0069010B1 (fr) Procédé de préparation de composés carbonyles delta-éthyléniques
CH634570A5 (en) Process for the preparation of gamma, delta-unsaturated lactones
CH590810A5 (en) Organoleptic oxygenated alicyclic derivs - giving galbanum or juniper oil-like odours to perfume compsns. soaps etc.
EP0177742A2 (fr) Composés azotés, leur préparation et leur utilisation à titre de produits de dèpart pour la préparation de cétones décaliniques
CH629467A5 (en) Process for the preparation of an oxygenated alicyclic compound

Legal Events

Date Code Title Description
PL Patent ceased
PL Patent ceased