GB612222A - Manufacture of acedianthrone derivatives - Google Patents

Manufacture of acedianthrone derivatives

Info

Publication number
GB612222A
GB612222A GB1518746A GB1518746A GB612222A GB 612222 A GB612222 A GB 612222A GB 1518746 A GB1518746 A GB 1518746A GB 1518746 A GB1518746 A GB 1518746A GB 612222 A GB612222 A GB 612222A
Authority
GB
United Kingdom
Prior art keywords
acedianthrone
ether
dichlordimethyl
reacted
sulphuric 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
GB1518746A
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.)
DAVID ALEXANDER WHYTE FAIRWEAT
Imperial Chemical Industries Ltd
Original Assignee
DAVID ALEXANDER WHYTE FAIRWEAT
Imperial Chemical Industries Ltd
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 DAVID ALEXANDER WHYTE FAIRWEAT, Imperial Chemical Industries Ltd filed Critical DAVID ALEXANDER WHYTE FAIRWEAT
Priority to GB1518746A priority Critical patent/GB612222A/en
Publication of GB612222A publication Critical patent/GB612222A/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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings

Landscapes

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

Abstract

Dye intermediates are made by bromo- or chloro-methylating acedianthrone (see Specification 551,622) or derivatives of acedianthrone containing chloro, bromo, amino, alkoxy, or alkyl substituents in presence of sulphuric acid or aluminium chloride with dichlordimethyl ether or dibromdimethylether (which may be formed in situ from e.g. paraformaldehyde and hydrogen chloride). When aluminium chloride is used, a tertiary base such as pyridine is preferably present, and dichlordimethyl ether may be formed with paraformaldehyde only. In examples, dichlordimethyl ether is reacted in sulphuric acid with (1) acedianthrone, (2) b b 1-dichloracedianthrone, (3) b b 1-dibromoacedianthrone, (4) b b 1-dimethylacedianthrone; also 5) dichlordimethyl ether is reacted with acedianthrone in presence of aluminium chloride and pyridine, and (6) dibromdimethyl ether is reacted with acedianthrone in concentrated sulphuric acid.
GB1518746A 1946-05-20 1946-05-20 Manufacture of acedianthrone derivatives Expired GB612222A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1518746A GB612222A (en) 1946-05-20 1946-05-20 Manufacture of acedianthrone derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1518746A GB612222A (en) 1946-05-20 1946-05-20 Manufacture of acedianthrone derivatives

Publications (1)

Publication Number Publication Date
GB612222A true GB612222A (en) 1948-11-10

Family

ID=10054547

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1518746A Expired GB612222A (en) 1946-05-20 1946-05-20 Manufacture of acedianthrone derivatives

Country Status (1)

Country Link
GB (1) GB612222A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645645A (en) * 1950-12-20 1953-07-14 Gen Aniline & Film Corp Chloromethylation of arylaminopolycyclic quinones
US2655515A (en) * 1950-06-26 1953-10-13 Ici Ltd Arylaminoacedianthrone isothiouronium salts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2655515A (en) * 1950-06-26 1953-10-13 Ici Ltd Arylaminoacedianthrone isothiouronium salts
US2645645A (en) * 1950-12-20 1953-07-14 Gen Aniline & Film Corp Chloromethylation of arylaminopolycyclic quinones

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