GB846840A - Improvements in the continuous production of hydrochlorides of cycloaliphatic ketoximes - Google Patents
Improvements in the continuous production of hydrochlorides of cycloaliphatic ketoximesInfo
- Publication number
- GB846840A GB846840A GB4062/59A GB406259A GB846840A GB 846840 A GB846840 A GB 846840A GB 4062/59 A GB4062/59 A GB 4062/59A GB 406259 A GB406259 A GB 406259A GB 846840 A GB846840 A GB 846840A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reaction
- hydrochlorides
- chlorine
- cycloaliphatic
- cyclo
- 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
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C249/00—Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton
- C07C249/04—Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton of oximes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C251/00—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton
- C07C251/32—Oximes
- C07C251/34—Oximes with oxygen atoms of oxyimino groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals
- C07C251/44—Oximes with oxygen atoms of oxyimino groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with the carbon atom of at least one of the oxyimino groups being part of a ring other than a six-membered aromatic ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/02—Preparation of lactams
- C07D201/04—Preparation of lactams from or via oximes by Beckmann rearrangement
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
Abstract
Cycloaliphatic ketoxime hydrochlorides are prepared by the action of nitrosyl chloride or of nitrogen monoxide and chlorine on a cycloaliphatic hydrocarbon having 5 to 10 carbon atoms in the ring in the presence of hydrogen chloride while irradiating with active light where before the reaction commences or before the reaction subsides there is added such an amount of a mixture of by-products such as are obtained as a residue from the reaction mixture arising in a reaction of cycloalkanes with a nitrosation agent of the above mentioned kind after removal of the oxime hydrochloride and the excess reactants, so that the content of organically combined chlorine in the reaction solution is at least 0,5% by weight with reference to the amount of cycloalkane used. The addition of the by-products is said to prevent the formation of a yellow coating on the lamp or glass parts of the reactor which slows down the speed of reaction. The nitrosation residues used generally contain 20 to 40% by weight of organically combined chlorine and are preferably added so that the chlorine content is 0,5 to 5% based on the hydrocarbon. The reaction is otherwise carried out in known manner and the examples describe the preparation of the oxime hydrochlorides, of cyclo-hexanone and cyclo-octanone.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE846840X | 1958-02-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB846840A true GB846840A (en) | 1960-08-31 |
Family
ID=6775160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4062/59A Expired GB846840A (en) | 1958-02-14 | 1959-02-05 | Improvements in the continuous production of hydrochlorides of cycloaliphatic ketoximes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB846840A (en) |
-
1959
- 1959-02-05 GB GB4062/59A patent/GB846840A/en not_active Expired
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