GB189809435A - A Process for Preparing Diazotisable and Non-diazotisable Compounds by Means of Primary Aromatic Monamines and Aromatic Diamines, and the Manufacture of Colouring Matters derived therefrom. - Google Patents
A Process for Preparing Diazotisable and Non-diazotisable Compounds by Means of Primary Aromatic Monamines and Aromatic Diamines, and the Manufacture of Colouring Matters derived therefrom.Info
- Publication number
- GB189809435A GB189809435A GB189809435DA GB189809435A GB 189809435 A GB189809435 A GB 189809435A GB 189809435D A GB189809435D A GB 189809435DA GB 189809435 A GB189809435 A GB 189809435A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aromatic
- salt
- diazotisable
- compounds
- monamines
- 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
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Pyridine Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
9435. Prud'homme, M. April 23. Amines. - (1) Aromatic primary monamines, such as aniline and alpha-naphthylamine, are converted into new compounds, which are soluble in alkalies and not diazotizable, but capable of combining with diazo compounds, by heating their hydrochlorides in water to 70‹ or 75‹ C. and then adding formaldehyde and sodium bisulphite. After cooling, the product is filtered off and washed. (2) Aromatic primary diamines, such as m- or p-phenylenediamine, benzidine, tolidine, azoxyaniline, azoxytoluidine, dianisidine, ethoxy- or methoxy-benzidine, or the like, when similarly treated, yield products which are soluble in alkalies and are diazotizable to half the extent of the parent compound. These compounds appear to be sulphonated or sulphinated. Dyes, artificial, which are very soluble in water and difficult to precipitate by common salt, and are capable of dyeing wool in an acid bath and cotton in a neutral or alkaline bath, are produced by diazotizing the above-described derivatives of aromatic diamines and combining these diazo compounds with phenols, naphthols, amidophenols, amidonaphthols, primary, secondary, or tertiary aromatic amines, or sulphonic or carboxylic acids thereof, or with the above-described derivatives of aromatic primary monamines or diamines. Examples are given in which violet, orange, blue, yellowish garnet, black, greenish yellow, poppyred, &c. shades are obtained by the use of R-salt, Piria's naphthionic acid, Schaeffer's salt, G-salt, amidonaphthol-G, H-salt, chromotrope acid, salicylic acid, &c.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB189809435T | 1898-04-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB189809435A true GB189809435A (en) | 1899-03-11 |
Family
ID=32415002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB189809435D Expired GB189809435A (en) | 1898-04-23 | 1898-04-23 | A Process for Preparing Diazotisable and Non-diazotisable Compounds by Means of Primary Aromatic Monamines and Aromatic Diamines, and the Manufacture of Colouring Matters derived therefrom. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB189809435A (en) |
-
1898
- 1898-04-23 GB GB189809435D patent/GB189809435A/en not_active Expired
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