GB703678A - Improvements in the preparation of alpha-aminoanthraquinone - Google Patents

Improvements in the preparation of alpha-aminoanthraquinone

Info

Publication number
GB703678A
GB703678A GB1396152A GB1396152A GB703678A GB 703678 A GB703678 A GB 703678A GB 1396152 A GB1396152 A GB 1396152A GB 1396152 A GB1396152 A GB 1396152A GB 703678 A GB703678 A GB 703678A
Authority
GB
United Kingdom
Prior art keywords
sulphonate
aminoanthraquinone
reaction
anthraquinone
boric acid
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
GB1396152A
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.)
Fairweather Harold G C
Original Assignee
Fairweather Harold G C
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 Fairweather Harold G C filed Critical Fairweather Harold G C
Priority to GB1396152A priority Critical patent/GB703678A/en
Priority to FR1060354D priority patent/FR1060354A/en
Priority to CH301810D priority patent/CH301810A/en
Publication of GB703678A publication Critical patent/GB703678A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus
    • C09B1/22—Dyes with unsubstituted amino groups

Landscapes

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

Abstract

a -Aminoanthraquinone is prepared from an a -anthraquinone monosulphonate by reacting with aqueous ammonia of 3-8 per cent. strength by volume and nitrobenzene sodium or potassium sulphonate, the reaction being conducted under pressure at 150-185 DEG C. with agitation. Boric acid, e.g. in an amount of 1/4 -\ba1/3 of the weight of sulphonate, may be present. Examples describe the reaction of a -anthraquinone sodium sulphonate, nitrobenzene potassium sulphonate and ammonia, with and without boric acid.
GB1396152A 1952-06-03 1952-06-03 Improvements in the preparation of alpha-aminoanthraquinone Expired GB703678A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1396152A GB703678A (en) 1952-06-03 1952-06-03 Improvements in the preparation of alpha-aminoanthraquinone
FR1060354D FR1060354A (en) 1952-06-03 1952-07-18 Improvements to alpha-aminoanthraquinone preparation processes
CH301810D CH301810A (en) 1952-06-03 1952-07-21 Process for the preparation of alpha-aminoanthraquinone.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1396152A GB703678A (en) 1952-06-03 1952-06-03 Improvements in the preparation of alpha-aminoanthraquinone

Publications (1)

Publication Number Publication Date
GB703678A true GB703678A (en) 1954-02-10

Family

ID=10032514

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1396152A Expired GB703678A (en) 1952-06-03 1952-06-03 Improvements in the preparation of alpha-aminoanthraquinone

Country Status (3)

Country Link
CH (1) CH301810A (en)
FR (1) FR1060354A (en)
GB (1) GB703678A (en)

Also Published As

Publication number Publication date
CH301810A (en) 1954-09-30
FR1060354A (en) 1954-04-01

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