GB366600A - Process for the manufacture of 1:7-dihydroxynaphthalene - Google Patents

Process for the manufacture of 1:7-dihydroxynaphthalene

Info

Publication number
GB366600A
GB366600A GB3369230A GB3369230A GB366600A GB 366600 A GB366600 A GB 366600A GB 3369230 A GB3369230 A GB 3369230A GB 3369230 A GB3369230 A GB 3369230A GB 366600 A GB366600 A GB 366600A
Authority
GB
United Kingdom
Prior art keywords
acid
dihydroxynaphthalene
manufacture
hydroxynaphthalene
amino
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
GB3369230A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB3369230A priority Critical patent/GB366600A/en
Publication of GB366600A publication Critical patent/GB366600A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/01—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis
    • C07C37/045—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis by substitution of a group bound to the ring by nitrogen
    • C07C37/05—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis by substitution of a group bound to the ring by nitrogen by substitution of a NH2 group

Landscapes

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

Abstract

1 : 7-Dihydroxynaphthalene is prepared by heating 2-8-dihydroxynaphthalene-6-sulphonic acid, 2-8-dihydroxynaphthalene-3-6-disulphonic acid, 7 - amino - 1 - hydroxynaphthalene-3-sulphonic acid or 7-amino-1-hydroxynaphthalene-3-6-disulphonic acid with dilute acid under pressure. The examples describe the use of sulphuric acid, hydrochloric acid, formic acid, and orthophosphoric acid.
GB3369230A 1930-11-08 1930-11-08 Process for the manufacture of 1:7-dihydroxynaphthalene Expired GB366600A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3369230A GB366600A (en) 1930-11-08 1930-11-08 Process for the manufacture of 1:7-dihydroxynaphthalene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3369230A GB366600A (en) 1930-11-08 1930-11-08 Process for the manufacture of 1:7-dihydroxynaphthalene

Publications (1)

Publication Number Publication Date
GB366600A true GB366600A (en) 1932-02-08

Family

ID=10356200

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3369230A Expired GB366600A (en) 1930-11-08 1930-11-08 Process for the manufacture of 1:7-dihydroxynaphthalene

Country Status (1)

Country Link
GB (1) GB366600A (en)

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