BE583845A - A process for the preparation of 4-amino-methylene-pyrazolones- (5) N, N-disubstituted and 4-formyl-pyrazolones- (5) at position 2 unsubstituted. - Google Patents

A process for the preparation of 4-amino-methylene-pyrazolones- (5) N, N-disubstituted and 4-formyl-pyrazolones- (5) at position 2 unsubstituted.

Info

Publication number
BE583845A
BE583845A BE583845A BE583845A BE583845A BE 583845 A BE583845 A BE 583845A BE 583845 A BE583845 A BE 583845A BE 583845 A BE583845 A BE 583845A BE 583845 A BE583845 A BE 583845A
Authority
BE
Belgium
Prior art keywords
pyrazolones
disubstituted
formyl
unsubstituted
methylene
Prior art date
Application number
BE583845A
Other languages
French (fr)
Inventor
Oskar Weissel
Hubertus Psaar
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
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of BE583845A publication Critical patent/BE583845A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D231/18—One oxygen or sulfur atom
    • C07D231/20—One oxygen atom attached in position 3 or 5
    • C07D231/22—One oxygen atom attached in position 3 or 5 with aryl radicals attached to ring nitrogen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Plural Heterocyclic Compounds (AREA)
BE583845A 1958-12-09 1959-10-21 A process for the preparation of 4-amino-methylene-pyrazolones- (5) N, N-disubstituted and 4-formyl-pyrazolones- (5) at position 2 unsubstituted. BE583845A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF27222A DE1220858B (en) 1958-12-09 1958-12-09 Process for the preparation of N, N-dialkyl- or N-alkyl-N-aryl-substituted 4-aminomethylene pyrazolones- (5) and of 4-formyl-pyrazolones- (5) with unsubstituted 2-position

Publications (1)

Publication Number Publication Date
BE583845A true BE583845A (en) 1960-02-15

Family

ID=7092343

Family Applications (1)

Application Number Title Priority Date Filing Date
BE583845A BE583845A (en) 1958-12-09 1959-10-21 A process for the preparation of 4-amino-methylene-pyrazolones- (5) N, N-disubstituted and 4-formyl-pyrazolones- (5) at position 2 unsubstituted.

Country Status (3)

Country Link
BE (1) BE583845A (en)
CH (2) CH407131A (en)
DE (1) DE1220858B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5162528A (en) * 1986-12-17 1992-11-10 Bayer Aktiengesellschaft Herbicidal and fungicidal agents based on substituted pyrazolin-5-one derivatives

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB666578A (en) * 1948-01-10 1952-02-13 Luxema Process for the preparation of derivatives of 1, 2, 3 substituted pyrazolones and derivatives obtained by this process
DE900577C (en) * 1951-10-07 1953-12-28 Boehringer & Soehne Gmbh Process for the preparation of 1-phenyl-2,3-dialkyl-4-formyl-5-pyrazolones

Also Published As

Publication number Publication date
DE1220858B (en) 1966-07-14
CH407131A (en) 1966-02-15
CH408028A (en) 1966-02-28

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