GB288884A - 1-amino-2, 4-dichloro-anthraquinone and a process of making the same from m-dichloro-benzene and phthalic anhydride together with the intermediate products of such process - Google Patents

1-amino-2, 4-dichloro-anthraquinone and a process of making the same from m-dichloro-benzene and phthalic anhydride together with the intermediate products of such process

Info

Publication number
GB288884A
GB288884A GB2150127A GB2150127A GB288884A GB 288884 A GB288884 A GB 288884A GB 2150127 A GB2150127 A GB 2150127A GB 2150127 A GB2150127 A GB 2150127A GB 288884 A GB288884 A GB 288884A
Authority
GB
United Kingdom
Prior art keywords
dichlor
acid
amino
dichloro
phthalic anhydride
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
GB2150127A
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.)
HENRY JOSEPH WEILAND
Original Assignee
HENRY JOSEPH WEILAND
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 HENRY JOSEPH WEILAND filed Critical HENRY JOSEPH WEILAND
Priority to GB2150127A priority Critical patent/GB288884A/en
Priority to DEN27961D priority patent/DE565041C/en
Priority to FR642931D priority patent/FR642931A/en
Publication of GB288884A publication Critical patent/GB288884A/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
    • C09B1/18—Preparation by synthesis of the nucleus

Landscapes

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

Abstract

288,884. Gubelmann, I., Weiland, H. J., and Stallmann, O. Aug. 15, 1927. 2<1> : 4<1>-Dichlor-2-benzoylbenzoic acid; 2<1> : 4<1>- dichlor-5<1>-nitro-2-benzoylbenzoic acid; 2<1> : 4<1>-dichlor-5<1>-amino-2-benzoyl benzoic acid.-m-Dichlorbenzene is condensed with phthalic anhydride, the resulting 2<1> : 4<1>-dichlor-2-benzoylbenzoic acid is nitrated and then reduced and the 2<1> : 4<1> - dichlor - 5<1> - amino-2-benzoylbenzoic acid finally treated with a dehydrating agent in order to close the ring and produce 1-amino-2: 4-diclloranthraquinone. For the condensation of the m-dichlorbenzene and phthalic anhydride aluminium or ferric chloride may be used. The reduction of the 2<1> : 4<1>-dichlor-5<1>-nitro-2-benzoylbenzoic acid is preferably effected with iron and acetic acid but iron and hydrochloric acid, electrclytic hydrogen, or hydrogen and a catalyst may be employed. For the final ring closure sulphuric acid is used.
GB2150127A 1927-08-15 1927-08-15 1-amino-2, 4-dichloro-anthraquinone and a process of making the same from m-dichloro-benzene and phthalic anhydride together with the intermediate products of such process Expired GB288884A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2150127A GB288884A (en) 1927-08-15 1927-08-15 1-amino-2, 4-dichloro-anthraquinone and a process of making the same from m-dichloro-benzene and phthalic anhydride together with the intermediate products of such process
DEN27961D DE565041C (en) 1927-08-15 1927-10-20 Process for the preparation of 1-amino-2, 4-dichloroanthraquinone
FR642931D FR642931A (en) 1927-08-15 1927-10-24 1-amino-2, 4-dichloro-anthraquinone, process for its manufacture starting from meta-dichloro-benzene and phthalic anhydride and intermediate products of this process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2150127A GB288884A (en) 1927-08-15 1927-08-15 1-amino-2, 4-dichloro-anthraquinone and a process of making the same from m-dichloro-benzene and phthalic anhydride together with the intermediate products of such process

Publications (1)

Publication Number Publication Date
GB288884A true GB288884A (en) 1928-04-19

Family

ID=10163993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2150127A Expired GB288884A (en) 1927-08-15 1927-08-15 1-amino-2, 4-dichloro-anthraquinone and a process of making the same from m-dichloro-benzene and phthalic anhydride together with the intermediate products of such process

Country Status (3)

Country Link
DE (1) DE565041C (en)
FR (1) FR642931A (en)
GB (1) GB288884A (en)

Also Published As

Publication number Publication date
DE565041C (en) 1932-11-25
FR642931A (en) 1928-09-06

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