GB915513A - A quinone derivative and process for the manufacture thereof - Google Patents

A quinone derivative and process for the manufacture thereof

Info

Publication number
GB915513A
GB915513A GB2503260A GB2503260A GB915513A GB 915513 A GB915513 A GB 915513A GB 2503260 A GB2503260 A GB 2503260A GB 2503260 A GB2503260 A GB 2503260A GB 915513 A GB915513 A GB 915513A
Authority
GB
United Kingdom
Prior art keywords
reacting
manufacture
benzoquinone
tetra
product
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
GB2503260A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst 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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB915513A publication Critical patent/GB915513A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
    • C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
    • C07D487/04—Ortho-condensed systems

Landscapes

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

Abstract

The invention comprises 2,3,5,6-tetra-amino-1,4-benzoquinone and the preparation thereof by reacting a 2,3,5,6-tetrahalogeno-1,4-benzoquinone with potassium phthalimide and reacting the product so obtained with hydrazine. The product may be purified by reduction to 2,3,5,6-tetra-aminohydroquinone tetrahydrochloride and reoxidation of the latter. Imidazoles of the general formula: <FORM:0915513/IV (b)/1> in which R1 and R2 are aliphatic radicals are prepared by reacting the tetraaminobenzoquinone with an acylating agent, e.g. acetic anhydride, and treating the bis-acetyl compound so produced with an acid. Belgian Specification 575,680 is referred to.
GB2503260A 1959-07-16 1960-07-18 A quinone derivative and process for the manufacture thereof Expired GB915513A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF28943A DE1167359B (en) 1959-07-16 1959-07-16 Process for the preparation of a quinone derivative

Publications (1)

Publication Number Publication Date
GB915513A true GB915513A (en) 1963-01-16

Family

ID=7093092

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2503260A Expired GB915513A (en) 1959-07-16 1960-07-18 A quinone derivative and process for the manufacture thereof

Country Status (3)

Country Link
CH (1) CH385245A (en)
DE (1) DE1167359B (en)
GB (1) GB915513A (en)

Also Published As

Publication number Publication date
DE1167359B (en) 1964-04-09
CH385245A (en) 1964-12-15

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