ES273164A1 - Process for the preparation of Ï-lactams - Google Patents
Process for the preparation of Ï-lactamsInfo
- Publication number
- ES273164A1 ES273164A1 ES0273164A ES273164A ES273164A1 ES 273164 A1 ES273164 A1 ES 273164A1 ES 0273164 A ES0273164 A ES 0273164A ES 273164 A ES273164 A ES 273164A ES 273164 A1 ES273164 A1 ES 273164A1
- Authority
- ES
- Spain
- Prior art keywords
- boron trifluoride
- acid
- compound
- lactams
- recovered
- 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
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 abstract 6
- 239000002253 acid Substances 0.000 abstract 4
- 229910015900 BF3 Inorganic materials 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- -1 nitrosyl compound Chemical class 0.000 abstract 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical group O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- HPVJGAZWQLWNKJ-UHFFFAOYSA-N azane;trifluoroborane Chemical compound N.FB(F)F HPVJGAZWQLWNKJ-UHFFFAOYSA-N 0.000 abstract 1
- 150000001768 cations Chemical class 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 150000003951 lactams Chemical class 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000000638 solvent extraction Methods 0.000 abstract 1
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
o -Lactams are produced by reacting a cycloalkanecarboxylic acid with a nitrosyl compound NOX, where X is an acid group, radical or cation, in the presence of boron trifluoride and/or a complex compound obtainable by reaction of a nitrosyl compound with boron trifluoride. The acid may be in molten condition or in solution and used in stoichiometric excess relative to the nitrosyl compound. Any unreacted acid is removed by distillation and the lactam is recovered by solvent extraction. The boron trifluoride is recovered by passing in ammonia and separatang and decomposing the solid ammonia -boron trifluoride complex formed. Reference has been directed by the Comptroller to Specification 940,255.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL259448 | 1960-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES273164A1 true ES273164A1 (en) | 1962-05-01 |
Family
ID=19752776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0273164A Expired ES273164A1 (en) | 1960-12-23 | 1961-12-22 | Process for the preparation of Ï-lactams |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE611909A (en) |
| CH (1) | CH404670A (en) |
| ES (1) | ES273164A1 (en) |
| GB (1) | GB972649A (en) |
| SE (1) | SE305447B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3354148A (en) * | 1965-12-08 | 1967-11-21 | Allied Chem | Process for the simultaneous preparation of epsilon-caprolactam and aromatic acids |
-
1961
- 1961-12-20 CH CH1474861A patent/CH404670A/en unknown
- 1961-12-22 ES ES0273164A patent/ES273164A1/en not_active Expired
- 1961-12-22 SE SE12894/61A patent/SE305447B/xx unknown
- 1961-12-22 BE BE611909A patent/BE611909A/en unknown
- 1961-12-27 GB GB46319/61A patent/GB972649A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE305447B (en) | 1968-10-28 |
| GB972649A (en) | 1964-10-14 |
| CH404670A (en) | 1965-12-31 |
| BE611909A (en) | 1962-06-22 |
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