GB1148424A - Lactams - Google Patents
LactamsInfo
- Publication number
- GB1148424A GB1148424A GB1828267A GB1828267A GB1148424A GB 1148424 A GB1148424 A GB 1148424A GB 1828267 A GB1828267 A GB 1828267A GB 1828267 A GB1828267 A GB 1828267A GB 1148424 A GB1148424 A GB 1148424A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- nitrous
- nitrosyl
- dodecanolactam
- cyclododecane
- 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
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/02—Preparation of lactams
- C07D201/10—Preparation of lactams from cycloaliphatic compounds by simultaneous nitrosylation and rearrangement
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,148,424. Dodecanolactam. IMPERIAL CHEMICAL INDUSTRIES Ltd. 25 March, 1968 [20 April, 1967], No. 18282/67. Heading C2C. Dodecanolactam is produced by reacting a monosubstituted cyclododecane with a nitrosating agent in the presence of chlorosulphonic acid. The substituent in the monosubstituted cyclododecane is preferably an electron withdrawing group, for example an hydroxyalkyl, ketone, sulphone, carboxylic acid or carboxylic ester group. The nitrosating agent may be nitrous acid or any derivative of nitrous acid such as sodium nitrite, an alkyl nitrite, nitrous anhydride, nitrosyl chloride or bromide, nitrosyl sulphuric acid anhydride or nitrosyl sulphuric acid. The chlorosulphonic acid may be the sole reaction medium or may be mixed with sulphuric acid or oleum or with an inert organic solvent. The reaction is usually carried out at temperatures within the range 25‹ to 150‹ C.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1828267A GB1148424A (en) | 1967-04-20 | 1967-04-20 | Lactams |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1828267A GB1148424A (en) | 1967-04-20 | 1967-04-20 | Lactams |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1148424A true GB1148424A (en) | 1969-04-10 |
Family
ID=10109790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1828267A Expired GB1148424A (en) | 1967-04-20 | 1967-04-20 | Lactams |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1148424A (en) |
-
1967
- 1967-04-20 GB GB1828267A patent/GB1148424A/en not_active Expired
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