GB1195296A - The Preparation of Lactams from Cycloalkanes - Google Patents
The Preparation of Lactams from CycloalkanesInfo
- Publication number
- GB1195296A GB1195296A GB5715767A GB5715767A GB1195296A GB 1195296 A GB1195296 A GB 1195296A GB 5715767 A GB5715767 A GB 5715767A GB 5715767 A GB5715767 A GB 5715767A GB 1195296 A GB1195296 A GB 1195296A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oil phase
- lactams
- nitrile
- cycloalkanes
- nitrosyl chloride
- 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
Abstract
1,195,296. Lactams from cycloalkanes. STAMICARBON N.V. 15 Dec., 1967 [16 Dec., 1966], No. 57157/67. Heading C2C. #-Lactams are prepared by reacting, under the influence of irradiation at a temperature from - 10‹ to 90‹ C., in a first oil phase, nitrosyl chloride, hydrogen chloride and cycloalkane in which a nitrile has been dissolved, whereby a second oil phase is produced; maintaining the said second oil phase at 40‹ to 150‹ C. for at least 5 minutes, and separating the #-lactam from the second oil phase. The said nitrile is characterized in that it does not react with nitrosyl chloride and may be benzonitrile, acetonitrile, dichloroacetonitrile, trichloroacetonitrile, a ch orobenzontrile or α- or #-naphthanitrile. Cl 2 may be introduced to promote a smooth reaction. The concentration of the nitrile is maintained at a value or range from 0À5-25 moles per cent based on the cycloalkane in order to ensure the formation of the second oil phase. The nitrosyl chloride may be formed in situ from nitric oxide and chlorine.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6617753A NL6617753A (en) | 1966-12-16 | 1966-12-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1195296A true GB1195296A (en) | 1970-06-17 |
Family
ID=19798473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5715767A Expired GB1195296A (en) | 1966-12-16 | 1967-12-15 | The Preparation of Lactams from Cycloalkanes |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT276342B (en) |
| BE (1) | BE708022A (en) |
| CH (1) | CH484909A (en) |
| DE (1) | DE1695869A1 (en) |
| ES (1) | ES348304A1 (en) |
| FR (1) | FR1559703A (en) |
| GB (1) | GB1195296A (en) |
| NL (1) | NL6617753A (en) |
| SE (1) | SE336339B (en) |
-
1966
- 1966-12-16 NL NL6617753A patent/NL6617753A/xx unknown
-
1967
- 1967-12-14 CH CH1753567A patent/CH484909A/en not_active IP Right Cessation
- 1967-12-15 SE SE1729367A patent/SE336339B/xx unknown
- 1967-12-15 GB GB5715767A patent/GB1195296A/en not_active Expired
- 1967-12-15 ES ES348304A patent/ES348304A1/en not_active Expired
- 1967-12-15 BE BE708022D patent/BE708022A/xx unknown
- 1967-12-15 DE DE19671695869 patent/DE1695869A1/en active Pending
- 1967-12-15 FR FR1559703D patent/FR1559703A/fr not_active Expired
- 1967-12-18 AT AT1139167A patent/AT276342B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| NL6617753A (en) | 1968-06-17 |
| DE1695869A1 (en) | 1971-05-06 |
| SE336339B (en) | 1971-07-05 |
| CH484909A (en) | 1970-01-31 |
| BE708022A (en) | 1968-06-17 |
| FR1559703A (en) | 1969-03-14 |
| ES348304A1 (en) | 1969-06-16 |
| AT276342B (en) | 1969-11-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |