GB1543978A - Pyrazoline compounds - Google Patents

Pyrazoline compounds

Info

Publication number
GB1543978A
GB1543978A GB1906876A GB1906876A GB1543978A GB 1543978 A GB1543978 A GB 1543978A GB 1906876 A GB1906876 A GB 1906876A GB 1906876 A GB1906876 A GB 1906876A GB 1543978 A GB1543978 A GB 1543978A
Authority
GB
United Kingdom
Prior art keywords
formula
image
compounds
pyrazoline compounds
emission
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
GB1906876A
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.)
Forschungszentrum Karlsruhe GmbH
Original Assignee
Kernforschungszentrum Karlsruhe GmbH
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 Kernforschungszentrum Karlsruhe GmbH filed Critical Kernforschungszentrum Karlsruhe GmbH
Publication of GB1543978A publication Critical patent/GB1543978A/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
    • C07D231/06—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)
  • Luminescent Compositions (AREA)
  • Measurement Of Radiation (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

Pyrazoline compounds of the formula I are prepared by reacting a phenyl vinyl ketone of the formula <IMAGE> or a dimethylaminopropiophenone hydrochloride of the formula <IMAGE> with a phenylhydrazine of the formula <IMAGE> The meaning of the individual symbols is evident from Claim 1. The compounds with the said substituents in the 2',6' position and/or in the 2'',6'' position have the following properties: unusually large Stokes' shifts without alteration in the frequency range and the intensity of the fluorescence emission, high quantum yield of emission and no overlap between the absorption region and the fluorescence region. They can be used for radiation conversion, in particular for optical brightening and scintillation measurement. <IMAGE>
GB1906876A 1975-07-15 1976-05-10 Pyrazoline compounds Expired GB1543978A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752531495 DE2531495C2 (en) 1975-07-15 1975-07-15 Pyrazoline compounds

Publications (1)

Publication Number Publication Date
GB1543978A true GB1543978A (en) 1979-04-11

Family

ID=5951528

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1906876A Expired GB1543978A (en) 1975-07-15 1976-05-10 Pyrazoline compounds

Country Status (4)

Country Link
JP (1) JPS5210272A (en)
CH (1) CH624940A5 (en)
DE (1) DE2531495C2 (en)
GB (1) GB1543978A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2643359B1 (en) * 1989-01-31 1993-12-10 Centre Nal Recherc Scientifique PROCESS FOR MANUFACTURING SPARKLING OPTICAL FIBERS AND OPTICAL FIBERS OBTAINED
DE4023860A1 (en) * 1990-07-27 1992-01-30 Kernforschungsz Karlsruhe New sterically hindered di:phenyl pyrazoline cpds. - are used as scintillator having large strokes shift, good quantum yield and decay time
DE4023859A1 (en) * 1990-07-27 1992-01-30 Kernforschungsz Karlsruhe New sterically hindered phenyl mesityl pyrazoline cpds. - are used as scintillator having large strokes shift, good quantum yield and decay time

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1902459A1 (en) * 1969-01-18 1970-08-20 Basf Ag Optically brightened fibre fleeces
BE788658R (en) * 1971-09-09 1973-03-12 Hoechst Ag 3- (3 ', 4'-DICHLORO-6'-ALKYLPHENYL) -DELTA2-PYRAZOLINES, THEIR PREPARATION AND THEIR USE AS BRIGHTENING AGENTS

Also Published As

Publication number Publication date
CH624940A5 (en) 1981-08-31
JPS5210272A (en) 1977-01-26
JPS6160068B2 (en) 1986-12-19
DE2531495C2 (en) 1985-01-17
DE2531495A1 (en) 1977-01-27

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950510