GB417957A - The manufacture of violet sulphur dyestuffs - Google Patents

The manufacture of violet sulphur dyestuffs

Info

Publication number
GB417957A
GB417957A GB1316233A GB1316233A GB417957A GB 417957 A GB417957 A GB 417957A GB 1316233 A GB1316233 A GB 1316233A GB 1316233 A GB1316233 A GB 1316233A GB 417957 A GB417957 A GB 417957A
Authority
GB
United Kingdom
Prior art keywords
sulphurized
diaminobenzene
acylamino
violet
indophenols
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
GB1316233A
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 GB1316233A priority Critical patent/GB417957A/en
Publication of GB417957A publication Critical patent/GB417957A/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
    • C09B49/00—Sulfur dyes
    • C09B49/10—Sulfur dyes from diphenylamines, indamines, or indophenols, e.g. p-aminophenols or leucoindophenols

Abstract

The indophenols obtainable by joint oxidation of a 1-acylamino-2 : 4-diaminobenzene and p-aminophenol or a halogen substitution product thereof, or the corresponding leuco compounds are sulphurized to give violet sulphur dyestuffs for vegetable fibres. According to examples, the indophenols of the following formula <FORM:0417957/IV/1> in which the acyl group may be acetyl or benzoyl and in which the NH2 group may be dimethylated or diethylated, obtained by joint oxidation of the corresponding 1-acylamino-2 : 4-diaminobenzene with p-amino- or p-nitrosophenol, are sulphurized in the usual manner. The leucoindophenols of the following formula <FORM:0417957/IV/2> in which the acyl group is acetyl or propionyl, and which may be chlorinated in the other nucleus at X, obtained by joint oxidation of the corresponding 1-acylamino-2 : 4-diaminobenzene with 2 : 4-dichloro-4-aminophenol and subsequent reduction, are also sulphurized. 2 - Amino- -4 - dimethyl and diethylamino - acetanilide are obtained by nitrating the 4 - dialkaminoacetanilide and reducing the product.
GB1316233A 1933-05-05 1933-05-05 The manufacture of violet sulphur dyestuffs Expired GB417957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1316233A GB417957A (en) 1933-05-05 1933-05-05 The manufacture of violet sulphur dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1316233A GB417957A (en) 1933-05-05 1933-05-05 The manufacture of violet sulphur dyestuffs

Publications (1)

Publication Number Publication Date
GB417957A true GB417957A (en) 1934-10-16

Family

ID=10017989

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1316233A Expired GB417957A (en) 1933-05-05 1933-05-05 The manufacture of violet sulphur dyestuffs

Country Status (1)

Country Link
GB (1) GB417957A (en)

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