GB623997A - Manufacture of new dyestuff intermediates of the anthraquinone series - Google Patents
Manufacture of new dyestuff intermediates of the anthraquinone seriesInfo
- Publication number
- GB623997A GB623997A GB1599646A GB1599646A GB623997A GB 623997 A GB623997 A GB 623997A GB 1599646 A GB1599646 A GB 1599646A GB 1599646 A GB1599646 A GB 1599646A GB 623997 A GB623997 A GB 623997A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anthraquinone
- anilino
- toluidino
- anthrapyrimidine
- amino
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Anthraquinone derivatives carrying one or more pendant aryl groups attached directly or through -O-, -S-, -CO.NH-, or -NH- linkages are chloro- or bromo-methylated with dichloro- or dibromo-dimethylether in presence of sulphuric acid or aluminium chloride. The ether may be formed in situ from paraformaldehyde and the aluminium chloride or hydrogen chloride. A tertiary base (e.g. pyridine) may be used with the aluminium chloride. The starting materials may be anthraquinone derivatives with or without condensed rings and having the pendant aryl group attached as indicated to the anthraquinone nucleus or to a condensed ring. In examples, the following substances are chlormethylated: (1) sodium 1 - amino - 4-anilino or p-toluidino-anthraquinone-2-sulphonate; (2) 1,4-dianilinoanthraquinone; (3) 1.4 - di - p - toluidinoanghraquinone; (4) 1.4-di - m - xylidinoanthraquinone; (5) 1 - amino-4 - anilino - or p - toluidino - 2 - methyl-anthraquinone; (6) 2-bromo-1-amino-4-anilino anthraquinone; (7) 1-methylamino-4-anilino-or p - toluidino - anthraquinone; (8) 6 - p - toluidino - 3 - methyl - 11.91 - anthrapyridone; (9) 6 - p - toluidino - 11.91 - anthrapyrimidine; (10) 6 - p - butylanilino - 2 - phenyl - 11.91-anthrapyrimidine; (11) 6-anilino-11.91-anthrapyrimidone; (12) 8.17-di-p-toluidinoindanthrone; (13) 2-anilino-3-hydroxy-11.21-pyrazinoanthraquinone; (14) 2.8-diphenylanthraquinone - 11.21 - (N) - 51. 61 - (N) - dithiazole; (15) 1 - hydroxy - or 1.5 - dihydroxy - 4-anilinoanthraquinone; (16) 1.4-diamino-2-phenoxyanthraquinone; (17) 2 - phenyl - 6-anilino- or p-toluidino-11.91-anthrapyrimidine; (18) 6-anilino-11.91-anthrapyrimidine; (19 1.4-diamino - 2.3 - di - (p - tolymercapto) - anthraquinone; (20) anthraquinone-2-carboxylic acid anilide. Also in examples: (21) 1.4-di-p-toluidinoanthraquinone, and (22) 6-p-toluidino-3-methyl-11.91-anthrapyridone are bromomethylated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1599646A GB623997A (en) | 1946-05-27 | 1946-05-27 | Manufacture of new dyestuff intermediates of the anthraquinone series |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1599646A GB623997A (en) | 1946-05-27 | 1946-05-27 | Manufacture of new dyestuff intermediates of the anthraquinone series |
Publications (1)
Publication Number | Publication Date |
---|---|
GB623997A true GB623997A (en) | 1949-05-26 |
Family
ID=10069307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1599646A Expired GB623997A (en) | 1946-05-27 | 1946-05-27 | Manufacture of new dyestuff intermediates of the anthraquinone series |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB623997A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2645645A (en) * | 1950-12-20 | 1953-07-14 | Gen Aniline & Film Corp | Chloromethylation of arylaminopolycyclic quinones |
-
1946
- 1946-05-27 GB GB1599646A patent/GB623997A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2645645A (en) * | 1950-12-20 | 1953-07-14 | Gen Aniline & Film Corp | Chloromethylation of arylaminopolycyclic quinones |
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