GB1282894A - Process for the manufacture of aminopyrazolones - Google Patents

Process for the manufacture of aminopyrazolones

Info

Publication number
GB1282894A
GB1282894A GB3556969A GB3556969A GB1282894A GB 1282894 A GB1282894 A GB 1282894A GB 3556969 A GB3556969 A GB 3556969A GB 3556969 A GB3556969 A GB 3556969A GB 1282894 A GB1282894 A GB 1282894A
Authority
GB
United Kingdom
Prior art keywords
alkyl
formula
aminopyrazolones
july
reaction
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
Application number
GB3556969A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert 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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of GB1282894A publication Critical patent/GB1282894A/en
Expired legal-status Critical Current

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
    • C07D231/44—Oxygen and nitrogen or sulfur and nitrogen atoms
    • C07D231/52—Oxygen atom in position 3 and nitrogen atom in position 5, or vice versa

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1282894 Aminopyrazolones. AGFAGEVAERT AG 15 July 1969 [16 July 1968] 35569/69 Heading C2C Compounds of Formula I wherein R 1 is an alkyl or aryl group optionally substituted by halogen or a sulphonic acid group, R 2 is H or alkyl and R 3 is an alkyl or aryl group optionally nitro-substituted, are prepared by reaction of a hydrazine R 1 -NH.NH 2 with a # - amino - # - alkylmercaptoacrylic acid ester obtained by reaction of an amine of formula R 2 HNR 3 with a compound of Formula II wherein alk is methyl or ethyl. Reference has been directed by the Comptroller to Specification 956,261.
GB3556969A 1968-07-16 1969-07-15 Process for the manufacture of aminopyrazolones Expired GB1282894A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681770895 DE1770895A1 (en) 1968-07-16 1968-07-16 Process for the preparation of aminopyrazolones

Publications (1)

Publication Number Publication Date
GB1282894A true GB1282894A (en) 1972-07-26

Family

ID=5700683

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3556969A Expired GB1282894A (en) 1968-07-16 1969-07-15 Process for the manufacture of aminopyrazolones

Country Status (4)

Country Link
BE (1) BE735621A (en)
DE (1) DE1770895A1 (en)
FR (1) FR2013027A1 (en)
GB (1) GB1282894A (en)

Also Published As

Publication number Publication date
DE1770895A1 (en) 1972-01-13
FR2013027A1 (en) 1970-03-27
BE735621A (en) 1970-01-05

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees