Claims
- 1. A compound of formula ##SPC30##
- in which
- R.sub.5 signifies a sulphonic acid, sulphonic amide, carboxylic amide or nitrile group,
- R.sub.6 signifies a hydrogen or chlorine atom, an alkyl radical of 1 to 4 carbon atoms or a carboxylic amide or nitrile group,
- R.sub.7 signifies a hydrogen or chlorine atom, or a methyl, hydroxymethyl or acetoxymethyl group,
- R.sub.8 signifies a hydrogen or chlorine atom or a methyl group, and
- A.sub.1 signifies a styryl, methylstyryl or nitrilostyryl radical,
- and water soluble sulphonates thereof.
- 2. A compound according to claim 1 which in sulphonate form contains 1 to 3 sulphonic acid groups.
- 3. A compound of claim 1, of formula ##SPC31##
- in which
- R.sub.5 ' signifies a sulphonic acid group or nitrile group,
- R.sub.6 ' signifies a hydrogen atom or a nitrile group,
- R.sub.7 ' signifies a hydrogen atom or chlorine atom or a methyl group,
- R.sub.8 ' signifies a hydrogen or chlorine atom or a methyl group, and
- A.sub.2 signifies a styryl, 4-methylstyryl or 4-cyanostyryl group,
- and their water soluble sulphonates.
- 4. A compound of claim 3, of formula ##SPC32##
- 5. A compound of claim 3, of formula ##SPC33##
- 6. A compound of claim 3, of formula ##SPC34##
- 7. A compound of claim 3, of formula ##SPC35##
- 8. A compound of claim 3, of formula ##SPC36##
Priority Claims (1)
Number |
Date |
Country |
Kind |
7685/71 |
May 1971 |
CH |
|
Parent Case Info
This application is a continuation-in-part of co-pending Application Ser. No. 255,256, filed May 22, 1972, and now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
3637673 |
Okubo et al. |
Jan 1972 |
|
3689481 |
Scheuermann et al. |
Sep 1972 |
|
3784570 |
Schellhammer |
Jan 1974 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
1,132,314 |
Oct 1968 |
UK |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
255256 |
May 1972 |
|