GB1085076A - Process for the preparation of lactams - Google Patents
Process for the preparation of lactamsInfo
- Publication number
- GB1085076A GB1085076A GB3070464A GB3070464A GB1085076A GB 1085076 A GB1085076 A GB 1085076A GB 3070464 A GB3070464 A GB 3070464A GB 3070464 A GB3070464 A GB 3070464A GB 1085076 A GB1085076 A GB 1085076A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formula
- hydrogen
- schiff
- reaction
- compound
- 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
- C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
- C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
- C07D215/16—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D215/20—Oxygen atoms
- C07D215/22—Oxygen atoms attached in position 2 or 4
- C07D215/227—Oxygen atoms attached in position 2 or 4 only one oxygen atom which is attached in position 2
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrogenated Pyridines (AREA)
Abstract
The invention comprises a process for the production of compounds of the general formula <FORM:1085076/C2/1> wherein R1 or R2 is hydrogen or lower alkoxy, R3 is hydrogen or lower alkyl and R4 is keto hydroxy or hydrogen and n is 1 or 2 where "lower" indicator radicals containing 1 to 6 carbon atoms by reaction of a substituted carbodiimide of the formula R1-N = C = N-R1 in which R1 is isopropyl, cyclohexyl or isobutyl, e.g. N,N1-dicyclohexylcarbodiimide, with a Schiff's base of formula <FORM:1085076/C2/2> to effect ring closure. The Schiff's base of the formula may be prepared by the reaction of a compound of formula <FORM:1085076/C2/3> wherein R1 and R2 have the above meanings, with a compound of formula <FORM:1085076/C2/4> wherein R3 and R4 have the above meanings.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3070464A GB1085076A (en) | 1964-08-04 | 1964-08-04 | Process for the preparation of lactams |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3070464A GB1085076A (en) | 1964-08-04 | 1964-08-04 | Process for the preparation of lactams |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1085076A true GB1085076A (en) | 1967-09-27 |
Family
ID=10311833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3070464A Expired GB1085076A (en) | 1964-08-04 | 1964-08-04 | Process for the preparation of lactams |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1085076A (en) |
-
1964
- 1964-08-04 GB GB3070464A patent/GB1085076A/en not_active Expired
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