CH558355A - PROCESS FOR THE PREPARATION OF 3,5-DIALKYLPYRIDINES FROM PRECONDENSATES OF FORMALDEHYDE WITH HIGHER ALDEHYDE HAVING A FREE (ALPHA) METHYLENE GROUP. - Google Patents

PROCESS FOR THE PREPARATION OF 3,5-DIALKYLPYRIDINES FROM PRECONDENSATES OF FORMALDEHYDE WITH HIGHER ALDEHYDE HAVING A FREE (ALPHA) METHYLENE GROUP.

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
Application number
CH1338571A
Other languages
German (de)
Original Assignee
Bayer Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19702045885 external-priority patent/DE2045885A1/en
Priority claimed from DE19712123965 external-priority patent/DE2123965A1/en
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of CH558355A publication Critical patent/CH558355A/en

Links

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)
CH1338571A 1970-09-17 1971-09-13 PROCESS FOR THE PREPARATION OF 3,5-DIALKYLPYRIDINES FROM PRECONDENSATES OF FORMALDEHYDE WITH HIGHER ALDEHYDE HAVING A FREE (ALPHA) METHYLENE GROUP. CH558355A (en)

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 (en) 1975-01-31

Family

ID=25759737

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1338571A CH558355A (en) 1970-09-17 1971-09-13 PROCESS FOR THE PREPARATION OF 3,5-DIALKYLPYRIDINES FROM PRECONDENSATES OF FORMALDEHYDE WITH HIGHER ALDEHYDE HAVING A FREE (ALPHA) METHYLENE GROUP.

Country Status (7)

Country Link
AT (1) AT308751B (en)
BE (1) BE772766A (en)
CH (1) CH558355A (en)
FR (1) FR2108257A5 (en)
GB (1) GB1366087A (en)
IT (1) IT954131B (en)
NL (1) NL7112688A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3145839A1 (en) 2023-02-10 2024-08-16 Psa Automobiles Sa Calculator support

Also Published As

Publication number Publication date
NL7112688A (en) 1972-03-21
GB1366087A (en) 1974-09-11
BE772766A (en) 1972-03-17
AT308751B (en) 1973-07-25
IT954131B (en) 1973-08-30
FR2108257A5 (en) 1972-05-19

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Legal Events

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PL Patent ceased