GB289692A - Manufacture of condensation products of the naphthostyril series - Google Patents
Manufacture of condensation products of the naphthostyril seriesInfo
- Publication number
- GB289692A GB289692A GB2341627A GB2341627A GB289692A GB 289692 A GB289692 A GB 289692A GB 2341627 A GB2341627 A GB 2341627A GB 2341627 A GB2341627 A GB 2341627A GB 289692 A GB289692 A GB 289692A
- Authority
- GB
- United Kingdom
- Prior art keywords
- naphthostyril
- acid
- products
- tetrahydroquinoxaline
- condensed
- 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
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
- C09B57/00—Other synthetic dyes of known constitution
- C09B57/06—Naphtholactam dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
289,692. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 6, 1927. Naphthalene dyes.-Naphthostyril or a substitution product thereof is condensed with a tertiary aromatic amine or with a phenol by means of an acid condensing agent. Acid wool dyes are obtained by sulphonating the products which are themselves dyestuffs. In examples, naphthostyril is condensed by means of piiosphorus oxychloride with dimethyl-, diethyl-, methylbenzyl-, methylcyclohexyl, ethylbenzyl- and dibenzyl-aniline, N-ethylcarbazole, N-methyldiphenylamine, dialkyl-alpha-naphthylamine, dialkyl- #-naphthylamine, m-diethylaminophenetol, mchlordimethylaniline m-chlordiethylaniline, pyrogallol, tetramethyl -0-phenylenediamine, tetramethylm-phenylenediamine and with N : N'- dimethyl-1 : 2 : 3: 4-tetrahydroquinoxaline. Diluents such as toluene and chlorbenzene may be used. When tertiary aromatic amines are condensed with naphthostyril, colour bases are first produced which are precipitated in acid solution as salts by means of sodium acetate, zinc chloride &c. The products comprise dyeatuffs which dye cotton mordanted with tannin, wool, silk and paper, bluish red, blue and blue-black tints. According to further examples, the condensation products from naphthostyril and dimethylaniline and from naphthostyril and pyrogallol are sulphonated bv means of oleum. Products are obtained which dye wool violet and yellow shades respectively, the latter changing to red-orange when after-chromed. Oxyhydroquinone, gallic acid and resorcinol are also mentioned as suitable phenols. and thionvl chloride as a suitable condensing agent which may be used in the process. Methylcyclohexylaniline is obtained by heating- cyclohexylaniline with a methylating agent such as dimethylsulphate and toluene-sulphonic acid methyl ester. N : N<1>-Dimethyl-1 : 2 : 3 : 4-tetrahydroquinoxaline is obtained by heating a hydrohalogen acid salt of 1 : 2 : 3 : 4-tetrahydroquinoxaline with methyl alcohol under pressure and decomposing the quaternary compound so produced by treatment with ammonia under pressure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2341627A GB289692A (en) | 1927-09-06 | 1927-09-06 | Manufacture of condensation products of the naphthostyril series |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2341627A GB289692A (en) | 1927-09-06 | 1927-09-06 | Manufacture of condensation products of the naphthostyril series |
Publications (1)
Publication Number | Publication Date |
---|---|
GB289692A true GB289692A (en) | 1928-05-03 |
Family
ID=10195253
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2341627A Expired GB289692A (en) | 1927-09-06 | 1927-09-06 | Manufacture of condensation products of the naphthostyril series |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB289692A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3299092A (en) * | 1963-04-06 | 1967-01-17 | Bayer Ag | Naphtholactam reaction products and process for preparation of the same |
-
1927
- 1927-09-06 GB GB2341627A patent/GB289692A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3299092A (en) * | 1963-04-06 | 1967-01-17 | Bayer Ag | Naphtholactam reaction products and process for preparation of the same |
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