IT1026500B - Derivati della pirazolina utilizzabili come schiarenti ottici e loro preparazione - Google Patents

Derivati della pirazolina utilizzabili come schiarenti ottici e loro preparazione

Info

Publication number
IT1026500B
IT1026500B IT47866/75A IT4786675A IT1026500B IT 1026500 B IT1026500 B IT 1026500B IT 47866/75 A IT47866/75 A IT 47866/75A IT 4786675 A IT4786675 A IT 4786675A IT 1026500 B IT1026500 B IT 1026500B
Authority
IT
Italy
Prior art keywords
pirazoline
derivatives
preparation
lighteners
optical
Prior art date
Application number
IT47866/75A
Other languages
English (en)
Italian (it)
Original Assignee
Sandoz 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 GB408774A external-priority patent/GB1493383A/en
Application filed by Sandoz Ag filed Critical Sandoz Ag
Application granted granted Critical
Publication of IT1026500B publication Critical patent/IT1026500B/it

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)
  • Coloring (AREA)
IT47866/75A 1974-01-29 1975-01-28 Derivati della pirazolina utilizzabili come schiarenti ottici e loro preparazione IT1026500B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB408774A GB1493383A (en) 1974-01-29 1974-01-29 Diphenyl pyrazoline derivatives
GB1966374 1974-05-03

Publications (1)

Publication Number Publication Date
IT1026500B true IT1026500B (it) 1978-09-20

Family

ID=26238858

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47866/75A IT1026500B (it) 1974-01-29 1975-01-28 Derivati della pirazolina utilizzabili come schiarenti ottici e loro preparazione

Country Status (6)

Country Link
US (1) US4036851A (en, 2012)
JP (1) JPS50145425A (en, 2012)
DE (1) DE2502434A1 (en, 2012)
FR (1) FR2259097B1 (en, 2012)
IT (1) IT1026500B (en, 2012)
NL (1) NL7500841A (en, 2012)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL290832A (en, 2012) * 1962-03-31
CH471791A (de) * 1966-11-21 1969-04-30 Geigy Ag J R Verfahren zur Herstellung von halogenierten Di- und Triarylpyrazolinsulfonsäuren
DE1900349A1 (de) * 1969-01-04 1970-08-06 Basf Ag Neue Pyrazolinderivate
DE1904424C3 (de) * 1969-01-30 1974-03-07 Farbwerke Hoechst Ag, Vormals Meister Lucius & Bruening, 6000 Frankfurt Verfahren zum optischen Aufhellen von Fasermaterialien aus Polyacrylnitril
ES388953A1 (es) 1970-03-11 1975-03-16 Farbwerke Hoechst A G V Meiste Procedimiento para la preparacion de compuestos de pirazo- lina.
DE2050725C3 (de) * 1970-10-15 1980-04-30 Bayer Ag, 5090 Leverkusen Aufhellungsmittel
BE788658R (fr) * 1971-09-09 1973-03-12 Hoechst Ag Derives de 3-(3', 4'-dichloro-6'-alkylphenyl) -delta2-pyrazolines, leurpreparation et leur utilisation comme agents d'azurage

Also Published As

Publication number Publication date
FR2259097B1 (en, 2012) 1978-07-13
DE2502434A1 (de) 1975-07-31
FR2259097A1 (en, 2012) 1975-08-22
JPS50145425A (en, 2012) 1975-11-21
US4036851A (en) 1977-07-19
NL7500841A (nl) 1975-07-31

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