GB918726A - Derivatives of 2,3-dimethoxy-5-methyl-benzohydroquinone-(1,4) and a process for the manufacture thereof - Google Patents

Derivatives of 2,3-dimethoxy-5-methyl-benzohydroquinone-(1,4) and a process for the manufacture thereof

Info

Publication number
GB918726A
GB918726A GB501559A GB501559A GB918726A GB 918726 A GB918726 A GB 918726A GB 501559 A GB501559 A GB 501559A GB 501559 A GB501559 A GB 501559A GB 918726 A GB918726 A GB 918726A
Authority
GB
United Kingdom
Prior art keywords
benzohydroquinone
dimethoxy
methyl
effected
formula
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
GB501559A
Inventor
Urs Gloor
Rudolf Rueegg
Ulrich Schwieter
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
Priority to GB501559A priority Critical patent/GB918726A/en
Publication of GB918726A publication Critical patent/GB918726A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C43/00—Ethers; Compounds having groups, groups or groups
    • C07C43/02—Ethers
    • C07C43/235—Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring and to a carbon atom of a ring other than a six-membered aromatic ring
    • C07C43/243—Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring and to a carbon atom of a ring other than a six-membered aromatic ring having unsaturation outside the six-membered aromatic rings

Landscapes

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

Abstract

The invention comprises compounds of the formula: <FORM:0918726/IV (b)/1> in which the double bond(s) containing a broken line may be fully hydrogenated and n is 1 to 4 inclusive, and a process for the preparation thereof by condensing 2,3-dimethoxy-5-methyl-benzohydroquinone-(1,4) or a 4-acyl derivative thereof with a tertiary alcohol of the formula: <FORM:0918726/IV (b)/2> or a primary alcohol obtained from this tertiary alcohol by allyl rearrangement or with an esterification product and, if necessary, hydrolysing the condensation product. The condensation may be effected in the presence of an acid condensing agent, e.g. zinc chloride in ether with the addition of acetic acid. Hydrolysis of the 4-acyl group may be effected with alkali. The Provisional Specification also discloses a process in which a compound having the second of the above formulae wherein n is 0 or 6-9, is employed.
GB501559A 1959-02-13 1959-02-13 Derivatives of 2,3-dimethoxy-5-methyl-benzohydroquinone-(1,4) and a process for the manufacture thereof Expired GB918726A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB501559A GB918726A (en) 1959-02-13 1959-02-13 Derivatives of 2,3-dimethoxy-5-methyl-benzohydroquinone-(1,4) and a process for the manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB501559A GB918726A (en) 1959-02-13 1959-02-13 Derivatives of 2,3-dimethoxy-5-methyl-benzohydroquinone-(1,4) and a process for the manufacture thereof

Publications (1)

Publication Number Publication Date
GB918726A true GB918726A (en) 1963-02-20

Family

ID=9788140

Family Applications (1)

Application Number Title Priority Date Filing Date
GB501559A Expired GB918726A (en) 1959-02-13 1959-02-13 Derivatives of 2,3-dimethoxy-5-methyl-benzohydroquinone-(1,4) and a process for the manufacture thereof

Country Status (1)

Country Link
GB (1) GB918726A (en)

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