IL94559A - Preparation of pyrazole and its history - Google Patents

Preparation of pyrazole and its history

Info

Publication number
IL94559A
IL94559A IL9455990A IL9455990A IL94559A IL 94559 A IL94559 A IL 94559A IL 9455990 A IL9455990 A IL 9455990A IL 9455990 A IL9455990 A IL 9455990A IL 94559 A IL94559 A IL 94559A
Authority
IL
Israel
Prior art keywords
iodine
pyrazole
hydrazine
reaction
pyrazoline
Prior art date
Application number
IL9455990A
Other languages
English (en)
Hebrew (he)
Other versions
IL94559A0 (en
Original Assignee
Basf 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 Basf Ag filed Critical Basf Ag
Publication of IL94559A0 publication Critical patent/IL94559A0/xx
Publication of IL94559A publication Critical patent/IL94559A/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
    • C07D231/12—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 only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
IL9455990A 1989-06-10 1990-05-29 Preparation of pyrazole and its history IL94559A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3918979A DE3918979A1 (de) 1989-06-10 1989-06-10 Verfahren zur herstellung von pyrazol und dessen derivaten

Publications (2)

Publication Number Publication Date
IL94559A0 IL94559A0 (en) 1991-03-10
IL94559A true IL94559A (en) 1994-02-27

Family

ID=6382485

Family Applications (1)

Application Number Title Priority Date Filing Date
IL9455990A IL94559A (en) 1989-06-10 1990-05-29 Preparation of pyrazole and its history

Country Status (14)

Country Link
US (1) US4996327A (cs)
EP (1) EP0402722B1 (cs)
JP (1) JP2868588B2 (cs)
KR (2) KR910000653A (cs)
AT (1) ATE100799T1 (cs)
CA (1) CA2018206C (cs)
CZ (1) CZ279830B6 (cs)
DE (2) DE3918979A1 (cs)
DK (1) DK0402722T3 (cs)
ES (1) ES2062181T3 (cs)
HU (1) HU207299B (cs)
IL (1) IL94559A (cs)
SK (1) SK278414B6 (cs)
ZA (1) ZA904430B (cs)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4028393A1 (de) * 1990-09-07 1992-03-12 Basf Ag Verfahren zur herstellung von 3-methylpyrazol
JPH05156545A (ja) * 1991-12-10 1993-06-22 Takata Kk ノンコート織布及びその製造方法
AU675447B2 (en) * 1992-07-28 1997-02-06 Merck Sharp & Dohme Limited Carboxamidomethyl piperidine and analogues
DE4328228A1 (de) * 1993-08-23 1995-03-02 Basf Ag Verfahren zur Herstellung von Pyrazol und dessen Derivaten
DE4415484A1 (de) * 1994-05-03 1995-11-09 Basf Ag Verfahren zur Herstellung von 1-(Het)aryl-3-hydroxy-pyrazolen
US5510361A (en) * 1994-10-20 1996-04-23 The Procter & Gamble Company Di-tert-butylphenol compounds with heterocyclic moiety, useful as anti-inflammatory agents
DE19500838A1 (de) * 1995-01-13 1996-07-18 Basf Ag Verfahren zur Herstellung von 3,5-Diarylpyrazolen
DE19645313A1 (de) 1996-11-04 1998-05-07 Basf Ag Substituierte 3-Benzylpyrazole
ATE267173T1 (de) 1997-06-23 2004-06-15 Basf Ag Verfahren zur herstellung substituierter pyrazole
CN101163679A (zh) 2005-04-21 2008-04-16 罕用药物有限公司 制备超纯4-甲基吡唑的方法
US8410135B2 (en) * 2007-06-15 2013-04-02 Solvay Pharmaceuticals B.V. 4,5 dihydro-(1H)-pyrazole derivatives as cannabinoid CB1 receptor modulators
EP2282998B1 (en) * 2008-04-21 2014-09-10 Albemarle Corporation Processes for producing n-alkylpyrazole
KR101005834B1 (ko) * 2008-08-04 2011-01-05 이화여자대학교 산학협력단 피라졸의 제조방법
CN102311388B (zh) * 2011-07-07 2013-05-22 林文斌 一种工业化生产3,4-二甲基吡唑及其磷酸盐的方法
CN102399189B (zh) * 2011-11-29 2014-12-31 上虞盛晖化工股份有限公司 一种3,4-二甲基吡唑磷酸盐的合成方法
CN102558057B (zh) * 2012-01-16 2014-04-02 兰州大学 多取代吡唑制备方法
CN102911119B (zh) * 2012-09-30 2015-06-17 浙江工业大学 3,4-二甲基吡唑和3,4-二甲基吡唑磷酸盐的制备方法
CN106316956A (zh) * 2015-07-02 2017-01-11 胡梓国 吡唑的工业生产方法
CN105153036A (zh) * 2015-09-28 2015-12-16 乐平市康鑫医药化工有限公司 丙烯醛固定床反应制备吡唑的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3029160A1 (de) * 1980-08-01 1982-03-04 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von pyrazolen
DE3035395A1 (de) * 1980-09-19 1982-05-06 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von pyrazol
DE3603376A1 (de) * 1986-02-05 1987-08-06 Basf Ag Verfahren zur herstellung von pyrazolen
DE3716293A1 (de) * 1987-05-15 1988-11-24 Basf Ag Verfahren zur herstellung von pyrazolen

Also Published As

Publication number Publication date
DK0402722T3 (da) 1994-02-28
KR910000653A (ko) 1991-01-29
ZA904430B (en) 1992-02-26
HU903775D0 (en) 1990-11-28
IL94559A0 (en) 1991-03-10
US4996327A (en) 1991-02-26
EP0402722A1 (de) 1990-12-19
DE3918979A1 (de) 1990-12-13
JPH03115265A (ja) 1991-05-16
CA2018206C (en) 2000-02-29
ATE100799T1 (de) 1994-02-15
EP0402722B1 (de) 1994-01-26
KR0140875B1 (ko) 1998-06-01
SK286290A3 (en) 1997-04-09
HU207299B (en) 1993-03-29
HUT54349A (en) 1991-02-28
CZ286290A3 (en) 1995-03-15
CA2018206A1 (en) 1990-12-10
ES2062181T3 (es) 1994-12-16
CZ279830B6 (cs) 1995-07-12
DE59004384D1 (de) 1994-03-10
JP2868588B2 (ja) 1999-03-10
SK278414B6 (en) 1997-04-09

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