GB1461149A - Process for the manufacutre of y,gamma-unsaturated carbonyl compounds - Google Patents

Process for the manufacutre of y,gamma-unsaturated carbonyl compounds

Info

Publication number
GB1461149A
GB1461149A GB2968874A GB2968874A GB1461149A GB 1461149 A GB1461149 A GB 1461149A GB 2968874 A GB2968874 A GB 2968874A GB 2968874 A GB2968874 A GB 2968874A GB 1461149 A GB1461149 A GB 1461149A
Authority
GB
United Kingdom
Prior art keywords
formula
gamma
unsaturated carbonyl
carbonyl compounds
image
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
GB2968874A
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche 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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Publication of GB1461149A publication Critical patent/GB1461149A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/20—Unsaturated compounds containing keto groups bound to acyclic carbon atoms
    • C07C49/203—Unsaturated compounds containing keto groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation
    • 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
    • C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
    • C07C45/511—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups
    • C07C45/515—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups the singly bound functional group being an acetalised, ketalised hemi-acetalised, or hemi-ketalised hydroxyl group
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C47/00—Compounds having —CHO groups
    • C07C47/20—Unsaturated compounds having —CHO groups bound to acyclic carbon atoms
    • C07C47/21—Unsaturated compounds having —CHO groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation

Landscapes

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

Abstract

gamma , delta -Unsaturated carbonyl compounds of the formula <IMAGE> are prepared by reacting a tertiary allyl alcohol of the formula <IMAGE> with an acetal or ketal of the formula <IMAGE> in a strong acid. 3-100 mol of ketal or acetal are employed per mole of tertiary allyl alcohol. R<1> represents organic radicals as defined in detail in the description. R<2> represents a lower aliphatic hydrocarbon radical, R<3>, R<4> and R<5> represent hydrogen or a lower aliphatic hydrocarbon radical. R<1> can also be cyclised with R<2>, and R<4> can be cyclised with R<5>, to give a carbocyclic ring. R<6> represents alkyl. gamma , delta -Unsaturated carbonyl compounds of the formula I can be used as odoriferous substances for perfuming purposes. They can furthermore be used as intermediates for the preparation of other chemical compounds, such as, for example, substituted ionones, the vitamins A, E and K1, or carotenoids.
GB2968874A 1973-07-05 1974-07-04 Process for the manufacutre of y,gamma-unsaturated carbonyl compounds Expired GB1461149A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37650073A 1973-07-05 1973-07-05

Publications (1)

Publication Number Publication Date
GB1461149A true GB1461149A (en) 1977-01-13

Family

ID=23485268

Family Applications (2)

Application Number Title Priority Date Filing Date
GB329376A Expired GB1461150A (en) 1973-07-05 1974-07-04 Process for the manufacture of y,gamma-unsaturated carbonyl compoounds
GB2968874A Expired GB1461149A (en) 1973-07-05 1974-07-04 Process for the manufacutre of y,gamma-unsaturated carbonyl compounds

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB329376A Expired GB1461150A (en) 1973-07-05 1974-07-04 Process for the manufacture of y,gamma-unsaturated carbonyl compoounds

Country Status (7)

Country Link
JP (1) JPS5037711A (en)
CH (2) CH597125A5 (en)
DE (1) DE2432351A1 (en)
FR (1) FR2235905B1 (en)
GB (2) GB1461150A (en)
IT (1) IT1015532B (en)
NL (1) NL7409144A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4426321A (en) 1980-08-08 1984-01-17 Givaudan Corporation Odorant alkadienyl ketones, alcohols and oximes
US4544714A (en) * 1982-02-03 1985-10-01 Givaudan Corporation Odorant oximes
CN110845312A (en) * 2019-11-27 2020-02-28 万华化学集团股份有限公司 Method for preparing methylheptenone

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5754133A (en) * 1980-08-08 1982-03-31 Givaudan & Cie Sa SHINKIHOKOBUTSUSHITSU
CN101778810A (en) * 2007-08-08 2010-07-14 帝斯曼知识产权资产管理有限公司 Process for the preparation of (e, e)-farnesyl acetone
JP6476475B2 (en) * 2012-10-08 2019-03-06 ディーエスエム アイピー アセッツ ビー．ブイ．Ｄｓｍ Ｉｐ Ａｓｓｅｔｓ Ｂ．Ｖ． Flavor and aroma mixture (I)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453317A (en) * 1962-07-11 1969-07-01 Hoffmann La Roche Unsaturated carbonyl compounds and processes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4426321A (en) 1980-08-08 1984-01-17 Givaudan Corporation Odorant alkadienyl ketones, alcohols and oximes
US4544714A (en) * 1982-02-03 1985-10-01 Givaudan Corporation Odorant oximes
CN110845312A (en) * 2019-11-27 2020-02-28 万华化学集团股份有限公司 Method for preparing methylheptenone

Also Published As

Publication number Publication date
FR2235905A1 (en) 1975-01-31
NL7409144A (en) 1975-01-07
GB1461150A (en) 1977-01-13
IT1015532B (en) 1977-05-20
DE2432351A1 (en) 1975-01-23
CH597125A5 (en) 1978-03-31
JPS5037711A (en) 1975-04-08
FR2235905B1 (en) 1978-11-10
CH621761A5 (en) 1981-02-27

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee