CH405326A - Process for the preparation of 1,3-diaryl-pyrazolines - Google Patents

Process for the preparation of 1,3-diaryl-pyrazolines

Info

Publication number
CH405326A
CH405326A CH1211961A CH1211961A CH405326A CH 405326 A CH405326 A CH 405326A CH 1211961 A CH1211961 A CH 1211961A CH 1211961 A CH1211961 A CH 1211961A CH 405326 A CH405326 A CH 405326A
Authority
CH
Switzerland
Prior art keywords
pyrazolines
diaryl
preparation
Prior art date
Application number
CH1211961A
Other languages
German (de)
Inventor
Kumar Sarkar Asim
William Adams Dennis Arthur
Original Assignee
Hickson & Welch Ltd
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 Hickson & Welch Ltd filed Critical Hickson & Welch Ltd
Publication of CH405326A publication Critical patent/CH405326A/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
    • C07D231/06—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)
CH1211961A 1960-10-28 1961-10-20 Process for the preparation of 1,3-diaryl-pyrazolines CH405326A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3281460A GB993055A (en) 1960-10-28 1960-10-28 Improvements in or relating to optical whitening agents

Publications (1)

Publication Number Publication Date
CH405326A true CH405326A (en) 1966-01-15

Family

ID=10344402

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1211961A CH405326A (en) 1960-10-28 1961-10-20 Process for the preparation of 1,3-diaryl-pyrazolines

Country Status (4)

Country Link
BE (1) BE609589A (en)
CH (1) CH405326A (en)
DE (1) DE1237124B (en)
GB (1) GB993055A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045169A (en) * 1971-09-09 1977-08-30 Hoechst Aktiengesellschaft 3-[3',4'-Dichloro-6'-alkyl-phenyl]-Δ 2-pyrazoline derivatives and their use as optical brighteners

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1419329B1 (en) * 1962-04-21 1970-01-15 Hoechst Ag 1,3-diaryl-delta-pyrazoline compounds and their use as whitening agents
DE1469222B1 (en) * 1964-09-25 1972-03-09 Hoechst Ag Pyrazoline derivatives and their preparation and use
DE2560051C3 (en) * 1975-07-31 1981-07-23 Basf Ag, 6700 Ludwigshafen Pyrazoline compounds
DE10208773A1 (en) 2002-02-28 2003-09-04 Clariant Gmbh Aqueous liquid formulations of pyrazoline brighteners

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE919411C (en) * 1950-06-03 1954-10-21 Ilford Ltd Process for the preparation of aryl-substituted pyrazoline compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045169A (en) * 1971-09-09 1977-08-30 Hoechst Aktiengesellschaft 3-[3',4'-Dichloro-6'-alkyl-phenyl]-Δ 2-pyrazoline derivatives and their use as optical brighteners

Also Published As

Publication number Publication date
GB993055A (en) 1965-05-26
DE1237124B (en) 1967-03-23
BE609589A (en) 1962-04-15

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