GB1318618A - Method for the preparation of omegalactams and their lactamizable precursors - Google Patents
Method for the preparation of omegalactams and their lactamizable precursorsInfo
- Publication number
- GB1318618A GB1318618A GB3157270A GB3157270A GB1318618A GB 1318618 A GB1318618 A GB 1318618A GB 3157270 A GB3157270 A GB 3157270A GB 3157270 A GB3157270 A GB 3157270A GB 1318618 A GB1318618 A GB 1318618A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formula
- nitrosating
- preparation
- ketene
- lactam
- 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)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Epoxy Compounds (AREA)
- Hydrogenated Pyridines (AREA)
- Pyrrole Compounds (AREA)
Abstract
1318618 Omega-lactams SNIA VISCOSA SOC NATIONALE INDUSTRIA APPLICAZIONI VISCOSA SpA 30 June 1970 [5 July 1969] 31572/70 Heading C2C A process for the preparation of an omegalactam having the formula or a precursor thereof (i.e. a compound formed in the process and which can be converted to the lactam by conventional means) comprises nitrosating a cyclomethylene ketene of the formula wherein n has the same value as in the lactam, using a nitrosation agent capable of providing NO + ions in the reaction medium at a temperature of from -60 C. to +100 C. The nitrosation is preferably carried out in an organic solvent, e.g. CCl 4 or a liquid hydrocarbon using a nitrosating agent of the formula NOX wherein X is nitro, chloro, bisulphate, alkoxy or aryloxy, the molar ratio of the ketene and nitrosating agent (expressed in terms of its content of NO) being between 0À6 : 1 and 1À1 : 1.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT1925069 | 1969-07-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1318618A true GB1318618A (en) | 1973-05-31 |
Family
ID=11156116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3157270A Expired GB1318618A (en) | 1969-07-05 | 1970-06-30 | Method for the preparation of omegalactams and their lactamizable precursors |
Country Status (13)
| Country | Link |
|---|---|
| JP (2) | JPS55377B1 (en) |
| AT (2) | AT323713B (en) |
| BE (1) | BE752976A (en) |
| CH (1) | CH569712A5 (en) |
| DE (2) | DE2033122A1 (en) |
| ES (1) | ES381444A1 (en) |
| FR (1) | FR2054176A5 (en) |
| GB (1) | GB1318618A (en) |
| IE (1) | IE34364B1 (en) |
| IL (1) | IL34837A (en) |
| NL (1) | NL6915003A (en) |
| SU (1) | SU373943A3 (en) |
| ZA (1) | ZA704436B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58103718U (en) * | 1981-12-30 | 1983-07-14 | 松下電器産業株式会社 | packaging box |
| JPS63191740A (en) * | 1987-01-29 | 1988-08-09 | 松下電器産業株式会社 | Packaging box for battery |
| US9321591B2 (en) | 2009-04-10 | 2016-04-26 | Symbotic, LLC | Autonomous transports for storage and retrieval systems |
| US9499338B2 (en) | 2010-12-15 | 2016-11-22 | Symbotic, LLC | Automated bot transfer arm drive system |
| US11078017B2 (en) | 2010-12-15 | 2021-08-03 | Symbotic Llc | Automated bot with transfer arm |
| KR20220166370A (en) | 2013-09-13 | 2022-12-16 | 심보틱 엘엘씨 | Automated storage and retrieval system |
-
1969
- 1969-10-03 NL NL6915003A patent/NL6915003A/xx unknown
-
1970
- 1970-06-29 CH CH982070A patent/CH569712A5/xx not_active IP Right Cessation
- 1970-06-29 ZA ZA704436*A patent/ZA704436B/en unknown
- 1970-06-30 GB GB3157270A patent/GB1318618A/en not_active Expired
- 1970-07-01 IL IL34837A patent/IL34837A/en unknown
- 1970-07-02 AT AT410072*1A patent/AT323713B/en not_active IP Right Cessation
- 1970-07-02 AT AT599770A patent/AT306715B/en not_active IP Right Cessation
- 1970-07-03 BE BE752976D patent/BE752976A/en unknown
- 1970-07-03 DE DE19702033122 patent/DE2033122A1/en active Pending
- 1970-07-03 DE DE2065766*A patent/DE2065766A1/en active Pending
- 1970-07-03 SU SU1446595A patent/SU373943A3/ru active
- 1970-07-03 IE IE867/70A patent/IE34364B1/en unknown
- 1970-07-03 FR FR7024881A patent/FR2054176A5/fr not_active Expired
- 1970-07-04 ES ES381444A patent/ES381444A1/en not_active Expired
- 1970-07-04 JP JP5810970A patent/JPS55377B1/ja active Pending
-
1976
- 1976-11-05 JP JP13248076A patent/JPS5310055B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5310055B1 (en) | 1978-04-11 |
| JPS55377B1 (en) | 1980-01-08 |
| IL34837A (en) | 1973-02-28 |
| NL6915003A (en) | 1971-01-07 |
| AT306715B (en) | 1973-04-25 |
| IE34364L (en) | 1971-01-05 |
| IE34364B1 (en) | 1975-04-16 |
| CH569712A5 (en) | 1975-11-28 |
| DE2033122A1 (en) | 1971-01-21 |
| FR2054176A5 (en) | 1971-04-16 |
| BE752976A (en) | 1971-01-04 |
| DE2065766A1 (en) | 1976-04-22 |
| IL34837A0 (en) | 1970-09-17 |
| ES381444A1 (en) | 1972-12-01 |
| ZA704436B (en) | 1971-03-31 |
| AT323713B (en) | 1975-07-25 |
| SU373943A3 (en) | 1973-03-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |