GB906164A - Improvements in the production of pyridine aldehydes - Google Patents
Improvements in the production of pyridine aldehydesInfo
- Publication number
- GB906164A GB906164A GB1548960A GB1548960A GB906164A GB 906164 A GB906164 A GB 906164A GB 1548960 A GB1548960 A GB 1548960A GB 1548960 A GB1548960 A GB 1548960A GB 906164 A GB906164 A GB 906164A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pyridine
- carbinol
- oxide
- produced
- temperature
- 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
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 title abstract 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Substances C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 title abstract 2
- -1 pyridine aldehydes Chemical class 0.000 title abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 3
- YKQOOVCTLNRCCA-UHFFFAOYSA-N methanol;1-oxidopyridin-1-ium Chemical compound OC.[O-][N+]1=CC=CC=C1 YKQOOVCTLNRCCA-UHFFFAOYSA-N 0.000 abstract 3
- CSDSSGBPEUDDEE-UHFFFAOYSA-N 2-formylpyridine Chemical compound O=CC1=CC=CC=N1 CSDSSGBPEUDDEE-UHFFFAOYSA-N 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000003701 inert diluent Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- OENLEHTYJXMVBG-UHFFFAOYSA-N pyridine;hydrate Chemical compound [OH-].C1=CC=[NH+]C=C1 OENLEHTYJXMVBG-UHFFFAOYSA-N 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
Landscapes
- Pyridine Compounds (AREA)
Abstract
Pyridine aldehydes are produced by heating a pyridine-N-oxide-carbinol to a temperature between its decomposition temperature and 450 DEG C., and recovering the pyridine aldehyde produced from the reaction mixture. Preferably the reaction is carried out continuously by continuous supply of small quantities of the starting pyridine-N-oxide-carbinol to a heated reaction zone, withdrawal and condensation of the pyridine aldehyde and water vapour produced. The pyridine-N-oxide-carbinol is desirably supplied to the reaction zone with an inert diluent such as water. The preferred temperature for carrying out the process is about 340 DEG C. Specifications 710,192 and 710,201 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER25795A DE1220423B (en) | 1959-06-24 | 1959-06-24 | Process for the preparation of pyridine aldehydes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB906164A true GB906164A (en) | 1962-09-19 |
Family
ID=7402015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1548960A Expired GB906164A (en) | 1959-06-24 | 1960-05-03 | Improvements in the production of pyridine aldehydes |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH383963A (en) |
| DE (1) | DE1220423B (en) |
| GB (1) | GB906164A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4237275A (en) * | 1978-06-08 | 1980-12-02 | Ciba-Geigy Corporation | Process for producing hydrazone derivatives of pyridinaldehydes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE936871C (en) * | 1951-10-21 | 1955-12-22 | F Raschig G M B H Dr | Process for the preparation of pyridine aldehydes |
-
1959
- 1959-06-24 DE DER25795A patent/DE1220423B/en active Pending
-
1960
- 1960-03-25 CH CH336060A patent/CH383963A/en unknown
- 1960-05-03 GB GB1548960A patent/GB906164A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1220423B (en) | 1966-07-07 |
| CH383963A (en) | 1964-11-15 |
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