GB1280432A - A process for the manufacture of polyene compounds - Google Patents

A process for the manufacture of polyene compounds

Info

Publication number
GB1280432A
GB1280432A GB3448470A GB3448470A GB1280432A GB 1280432 A GB1280432 A GB 1280432A GB 3448470 A GB3448470 A GB 3448470A GB 3448470 A GB3448470 A GB 3448470A GB 1280432 A GB1280432 A GB 1280432A
Authority
GB
United Kingdom
Prior art keywords
residue
dialdehyde
general formula
formula
zero
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
GB3448470A
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
Priority claimed from CH1172669A external-priority patent/CH517053A/en
Priority claimed from CH1624369A external-priority patent/CH522572A/en
Application filed by F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Publication of GB1280432A publication Critical patent/GB1280432A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/32—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from compounds containing hetero-atoms other than or in addition to oxygen or halogen
    • C07C1/34—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from compounds containing hetero-atoms other than or in addition to oxygen or halogen reacting phosphines with aldehydes or ketones, e.g. Wittig reaction
    • 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
    • C07C45/72—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 by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups

Abstract

1280432 Polyene compounds F HOFFMANN-LA ROCHE & CO AG 16 July 1970 [1 Aug 1969 31 Oct 1969] 34484/70 Heading C2C [Also in Division C5] Polyene compounds of the general formula in which the R-residue has the same significance and each represents the formyl residue, an alkoxy carbonyl residue or the 4,8-dimethylnona-1,3,7-trien-1-yl residue are prepared by reacting in the presence of an ethylene oxide which may be substituted by C 1 -C 5 alkyl, either a dialdehyde of the general formula in which a and b stand for zero, with a phosphonium salt of the general formula in which c stands for 1, Y represents an aryl or di(C 1 -C 4 alkyl)amino group and Z represents a halogen or hydrosulphate ion, or a dialdehyde of Formula II in which a and b represent 1 with a phosphonium salt of the formula in which c stands for zero, R<SP>1</SP> represents the 2,6- dimethyl-hepta-1,5-dien-1-yl residue, or a dialdehyde of Formula II in which a represents zero and b represents 1, with a phosphonium salt of the general formula Examples describe the preparation of crocetin dialdehyde, crocetin dicetyl, dimethyl and diethyl esters.
GB3448470A 1969-08-01 1970-07-16 A process for the manufacture of polyene compounds Expired GB1280432A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1172669A CH517053A (en) 1969-08-01 1969-08-01 Process for the preparation of polyene compounds
CH1624369A CH522572A (en) 1969-10-31 1969-10-31 Polyenic derivs prepn

Publications (1)

Publication Number Publication Date
GB1280432A true GB1280432A (en) 1972-07-05

Family

ID=25708815

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3448470A Expired GB1280432A (en) 1969-08-01 1970-07-16 A process for the manufacture of polyene compounds

Country Status (6)

Country Link
BE (1) BE754224A (en)
DE (1) DE2037936B2 (en)
FR (1) FR2057775A5 (en)
GB (1) GB1280432A (en)
NL (1) NL7009468A (en)
SE (1) SE360348B (en)

Also Published As

Publication number Publication date
NL7009468A (en) 1971-02-03
DE2037936B2 (en) 1975-06-05
FR2057775A5 (en) 1971-05-21
BE754224A (en) 1971-02-01
DE2037936A1 (en) 1971-02-11
SE360348B (en) 1973-09-24

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees