GB677253A - New diazabutadiene sulphonic acids - Google Patents
New diazabutadiene sulphonic acidsInfo
- Publication number
- GB677253A GB677253A GB2080749A GB2080749A GB677253A GB 677253 A GB677253 A GB 677253A GB 2080749 A GB2080749 A GB 2080749A GB 2080749 A GB2080749 A GB 2080749A GB 677253 A GB677253 A GB 677253A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphonic acids
- diazabutadiene
- new
- thiosemicarbazones
- acetylamino
- 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
The invention comprises diazabutadienesulphonic acids of the formula: <FORM:0677253/IV (b)/1> in which the phenyl radical R may be optionally para-substituted by chlorine, SO2-C2H5, and acetylamino, obtained by oxidizing araldehyde thiosemicarbazones R.CH=N.NH.CS.NH2 by means of peracetic acid, especially from hydrogen peroxide, in glacial acetic acid at <10 DEG C. In examples the thiosemicarbazones of benzaldehyde and its p-ethylsulphonyl-, p-acetylamino- and p-chlor-derivatives are oxidized with hydrogen peroxide/acetic acid to the corresponding sulphonic acids.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2080749A GB677253A (en) | 1949-08-10 | 1949-08-10 | New diazabutadiene sulphonic acids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2080749A GB677253A (en) | 1949-08-10 | 1949-08-10 | New diazabutadiene sulphonic acids |
Publications (1)
Publication Number | Publication Date |
---|---|
GB677253A true GB677253A (en) | 1952-08-13 |
Family
ID=10152006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2080749A Expired GB677253A (en) | 1949-08-10 | 1949-08-10 | New diazabutadiene sulphonic acids |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB677253A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3419659A (en) * | 1964-07-08 | 1968-12-31 | Gaf Corp | Sun screening methods |
-
1949
- 1949-08-10 GB GB2080749A patent/GB677253A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3419659A (en) * | 1964-07-08 | 1968-12-31 | Gaf Corp | Sun screening methods |
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