CH503685A - Unsaturated ketone prodn - Google Patents

Unsaturated ketone prodn

Info

Publication number
CH503685A
CH503685A CH84870A CH84870A CH503685A CH 503685 A CH503685 A CH 503685A CH 84870 A CH84870 A CH 84870A CH 84870 A CH84870 A CH 84870A CH 503685 A CH503685 A CH 503685A
Authority
CH
Switzerland
Prior art keywords
prodn
unsaturated ketone
formula
ketone
cyclising
Prior art date
Application number
CH84870A
Other languages
French (fr)
Inventor
Ervin Dr Kovats
Edouard Dr Demole
Guenther Dr Ohloff
Max Dr Stoll
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 CH84870A priority Critical patent/CH503685A/en
Priority claimed from CH1630968A external-priority patent/CH498795A/en
Publication of CH503685A publication Critical patent/CH503685A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C403/00—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone
    • C07C403/14—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by doubly-bound oxygen atoms
    • C07C403/16—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by doubly-bound oxygen atoms not being part of —CHO groups
    • 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
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/29—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation of hydroxy groups
    • C07C45/298—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation of hydroxy groups with manganese derivatives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/16—Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fats And Perfumes (AREA)
  • Cosmetics (AREA)

Abstract

Unsaturated ketones, which can be used in perfumery and production of aroma cpds. are of formula: (which contains one double bond situated in either of the position indicated by the broken lines) are produced by cyclising a "pseudo" ketone of the formula: by an acidic cyclisation agent.
CH84870A 1968-11-01 1968-11-01 Unsaturated ketone prodn CH503685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH84870A CH503685A (en) 1968-11-01 1968-11-01 Unsaturated ketone prodn

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH84870A CH503685A (en) 1968-11-01 1968-11-01 Unsaturated ketone prodn
CH1630968A CH498795A (en) 1967-11-09 1968-11-01 Process for the preparation of unsaturated ketones

Publications (1)

Publication Number Publication Date
CH503685A true CH503685A (en) 1971-02-28

Family

ID=4416191

Family Applications (2)

Application Number Title Priority Date Filing Date
CH84770A CH503684A (en) 1968-11-01 1968-11-01 Unsaturated ketone prodn
CH84870A CH503685A (en) 1968-11-01 1968-11-01 Unsaturated ketone prodn

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH84770A CH503684A (en) 1968-11-01 1968-11-01 Unsaturated ketone prodn

Country Status (2)

Country Link
CH (2) CH503684A (en)
ES (2) ES377483A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103058841A (en) * 2013-01-08 2013-04-24 河南师范大学 Preparation method of alpha-damascenone perfume
CN111018685A (en) * 2019-12-30 2020-04-17 山东吉田生物科技有限公司 Synthesis method of α -dihydrodamascone

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3681888D1 (en) * 1985-12-04 1991-11-14 Firmenich & Cie METHOD FOR PRODUCING CYCLOALIPHATIC KETONES.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103058841A (en) * 2013-01-08 2013-04-24 河南师范大学 Preparation method of alpha-damascenone perfume
CN103058841B (en) * 2013-01-08 2015-05-06 河南师范大学 Preparation method of alpha-damascenone perfume
CN111018685A (en) * 2019-12-30 2020-04-17 山东吉田生物科技有限公司 Synthesis method of α -dihydrodamascone
CN111018685B (en) * 2019-12-30 2022-12-13 山东吉田生物科技有限公司 Synthetic method of alpha-dihydrodamascone

Also Published As

Publication number Publication date
CH503684A (en) 1971-02-28
ES377483A1 (en) 1972-07-01
ES377485A1 (en) 1972-07-01

Similar Documents

Publication Publication Date Title
ES190607Y (en) TAP VALVE.
NL169217C (en) BALL VALVE.
CA936516A (en) Ball valve stem guide
ES194599Y (en) PERFECTED BUTTERFLY VALVE.
CH503685A (en) Unsaturated ketone prodn
ES195053Y (en) NEW AEROSOL VALVE STRUCTURE.
IE37133L (en) Puppet stage.
FI48223C (en) Ball valve.
BE574828A (en) Valve, especially for balloon.
FR2042380A1 (en) Diacetyl digoxine digitoxine gitoxine
CA845989A (en) Ball cock for one piece water closet
CA835132A (en) Ball cock for one piece water closet
IE32690L (en) Ketone derivatives of thiamine.
DK124168B (en) Heart valve prosthesis.
ES179594U (en) Toy transistor radio. (Machine-translation by Google Translate, not legally binding)
ES145267Y (en) PERFECTED VALVE.
ES172682U (en) Brush. (Machine-translation by Google Translate, not legally binding)
ES146199Y (en) AN PERFECTED VALVE.
FR1316353A (en) Valve, especially for balloon bladder or the like
ES165440Y (en) PERFECTED BALL VALVE.
ES175808Y (en) PERFECTED DOUBLE ADJUSTMENT VALVE.
ES203623Y (en) PERFECTED SEAT VALVE.
CA787884A (en) Solutions through the reduction of hexavalent chromium by formaldehyde
NL7000144A (en) 3 17-dioxo-13beta-ethylgona-4 9 11-triene
CA831009A (en) 2,8-diazaspiro (4,5) decan-1,3-dione derivatives

Legal Events

Date Code Title Description
PL Patent ceased