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FR975343A - Process for the preparation of methyl-6, alpha-ionones (alpha-irones) isomers, by the cyclization of methyl-3-pseudo-ionones - Google Patents

Process for the preparation of methyl-6, alpha-ionones (alpha-irones) isomers, by the cyclization of methyl-3-pseudo-ionones

Info

Publication number
FR975343A
FR975343A FR975343DA FR975343A FR 975343 A FR975343 A FR 975343A FR 975343D A FR975343D A FR 975343DA FR 975343 A FR975343 A FR 975343A
Authority
FR
France
Prior art keywords
ionones
alpha
methyl
irones
cyclization
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
Application number
Other languages
French (fr)
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.)
Givaudan SA
Original Assignee
L Givaudan and Co SA
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 L Givaudan and Co SA filed Critical L Givaudan and Co SA
Application granted granted Critical
Publication of FR975343A publication Critical patent/FR975343A/en
Expired legal-status Critical Current

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
    • 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)
FR975343D 1948-05-04 1948-11-22 Process for the preparation of methyl-6, alpha-ionones (alpha-irones) isomers, by the cyclization of methyl-3-pseudo-ionones Expired FR975343A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH666881X 1948-05-04

Publications (1)

Publication Number Publication Date
FR975343A true FR975343A (en) 1951-03-05

Family

ID=4527352

Family Applications (1)

Application Number Title Priority Date Filing Date
FR975343D Expired FR975343A (en) 1948-05-04 1948-11-22 Process for the preparation of methyl-6, alpha-ionones (alpha-irones) isomers, by the cyclization of methyl-3-pseudo-ionones

Country Status (3)

Country Link
CH (1) CH273699A (en)
FR (1) FR975343A (en)
GB (1) GB666881A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE931351C (en) * 1948-05-04 1955-08-08 Givaudan & Cie Sa Process for the production of isomeric 6-methyl-ª ‡ -ionons (ª ‡ -ions) by ring closure of 3-methyl pseudoionons

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1028992B (en) * 1955-09-06 1958-04-30 Hoffmann La Roche Process for the production of unsaturated ketones

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE931351C (en) * 1948-05-04 1955-08-08 Givaudan & Cie Sa Process for the production of isomeric 6-methyl-ª ‡ -ionons (ª ‡ -ions) by ring closure of 3-methyl pseudoionons

Also Published As

Publication number Publication date
CH273699A (en) 1951-02-28
GB666881A (en) 1952-02-20

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