CH558355A - Verfahren zur herstellung von 3,5-dialkylpyridinen aus vorkondensaten von formaldehyd mit eine freie (alpha)-methylengruppe aufweisenden hoeheren aldehyden. - Google Patents
Verfahren zur herstellung von 3,5-dialkylpyridinen aus vorkondensaten von formaldehyd mit eine freie (alpha)-methylengruppe aufweisenden hoeheren aldehyden.Info
- Publication number
- CH558355A CH558355A CH1338571A CH1338571A CH558355A CH 558355 A CH558355 A CH 558355A CH 1338571 A CH1338571 A CH 1338571A CH 1338571 A CH1338571 A CH 1338571A CH 558355 A CH558355 A CH 558355A
- Authority
- CH
- Switzerland
- Prior art keywords
- dialkylpyridines
- precondensates
- formaldehyde
- alpha
- preparation
- Prior art date
Links
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title 3
- 150000001299 aldehydes Chemical class 0.000 title 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/06—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
- C07D213/08—Preparation by ring-closure
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702045885 DE2045885A1 (en) | 1970-09-17 | 1970-09-17 | 3,5-dialkylpyridine prdon - from formaldehyde pre condesnates higher aldehydes |
| DE19712123965 DE2123965A1 (en) | 1971-05-14 | 1971-05-14 | 3,5-dialkylpyridine prdon - from formaldehyde pre condesnates higher aldehydes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH558355A true CH558355A (de) | 1975-01-31 |
Family
ID=25759737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1338571A CH558355A (de) | 1970-09-17 | 1971-09-13 | Verfahren zur herstellung von 3,5-dialkylpyridinen aus vorkondensaten von formaldehyd mit eine freie (alpha)-methylengruppe aufweisenden hoeheren aldehyden. |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT308751B (de) |
| BE (1) | BE772766A (de) |
| CH (1) | CH558355A (de) |
| FR (1) | FR2108257A5 (de) |
| GB (1) | GB1366087A (de) |
| IT (1) | IT954131B (de) |
| NL (1) | NL7112688A (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3145839A1 (fr) | 2023-02-10 | 2024-08-16 | Psa Automobiles Sa | Support de calculateur |
-
1971
- 1971-09-13 CH CH1338571A patent/CH558355A/de not_active IP Right Cessation
- 1971-09-14 GB GB4282071A patent/GB1366087A/en not_active Expired
- 1971-09-15 IT IT2868671A patent/IT954131B/it active
- 1971-09-15 NL NL7112688A patent/NL7112688A/xx unknown
- 1971-09-17 AT AT810371A patent/AT308751B/de not_active IP Right Cessation
- 1971-09-17 BE BE772766A patent/BE772766A/xx unknown
- 1971-09-17 FR FR7133608A patent/FR2108257A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE772766A (fr) | 1972-03-17 |
| GB1366087A (en) | 1974-09-11 |
| NL7112688A (de) | 1972-03-21 |
| FR2108257A5 (de) | 1972-05-19 |
| AT308751B (de) | 1973-07-25 |
| IT954131B (it) | 1973-08-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |