GB526747A - The manufacture of soluble aromatic sulphonamide compounds - Google Patents
The manufacture of soluble aromatic sulphonamide compoundsInfo
- Publication number
- GB526747A GB526747A GB6909/39A GB690939A GB526747A GB 526747 A GB526747 A GB 526747A GB 6909/39 A GB6909/39 A GB 6909/39A GB 690939 A GB690939 A GB 690939A GB 526747 A GB526747 A GB 526747A
- Authority
- GB
- United Kingdom
- Prior art keywords
- soluble
- ammonium chloride
- compound
- maltoside
- march
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C311/00—Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
- C07C311/30—Sulfonamides, the carbon skeleton of the acid part being further substituted by singly-bound nitrogen atoms, not being part of nitro or nitroso groups
- C07C311/37—Sulfonamides, the carbon skeleton of the acid part being further substituted by singly-bound nitrogen atoms, not being part of nitro or nitroso groups having the sulfur atom of at least one of the sulfonamide groups bound to a carbon atom of a six-membered aromatic ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
526,747. Sulphonamides. WINTHROP CHEMICAL CO., Inc. March 2, 1939, Nos. 6909 and 6910. Convention dates, March 5, 1938 and Aug. 6, 1938. [Class 2 (iii)] A soluble maltose-sulphonamide compound is prepared by condensing maltose with paminobenzene-sulphonamide, if desired in the presence of a trace of ammonium chloride. The reaction may be effected in methyl alcoholic solution. If relatively large quantities of ammonium chloride are present (3 per cent. or more) an insoluble compound is formed, which however can be converted into the soluble compound by treatment with dilute acid and then neutralization. Examples are given. The Specification as open to inspection under Sect. 91 also describes the preparation of the insoluble maltoside by heating the soluble maltoside in methanol solution in the presence of ammonium chloride. This subjectmatter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 519,661.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US526747XA | 1938-03-05 | 1938-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB526747A true GB526747A (en) | 1940-09-25 |
Family
ID=21979173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6909/39A Expired GB526747A (en) | 1938-03-05 | 1939-03-02 | The manufacture of soluble aromatic sulphonamide compounds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB526747A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2659689A (en) * | 1950-12-23 | 1953-11-17 | Dyk & Company Inc Van | Benzoic esters |
-
1939
- 1939-03-02 GB GB6909/39A patent/GB526747A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2659689A (en) * | 1950-12-23 | 1953-11-17 | Dyk & Company Inc Van | Benzoic esters |
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