CA1037048A - Catalytic dehydrogenation process for the preparation of 3,5-disubstituted pyrazoles - Google Patents

Catalytic dehydrogenation process for the preparation of 3,5-disubstituted pyrazoles

Info

Publication number
CA1037048A
CA1037048A CA207,577A CA207577A CA1037048A CA 1037048 A CA1037048 A CA 1037048A CA 207577 A CA207577 A CA 207577A CA 1037048 A CA1037048 A CA 1037048A
Authority
CA
Canada
Prior art keywords
mixture
reaction mixture
carbon
catalyst
group
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
CA207,577A
Other languages
English (en)
French (fr)
Other versions
CA207577S (en
Inventor
Walter J. Stepek
Murray Garber
Lawrence J. Ross
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Application granted granted Critical
Publication of CA1037048A publication Critical patent/CA1037048A/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
    • C07D231/12—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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)
CA207,577A 1973-09-17 1974-08-22 Catalytic dehydrogenation process for the preparation of 3,5-disubstituted pyrazoles Expired CA1037048A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39828473A 1973-09-17 1973-09-17

Publications (1)

Publication Number Publication Date
CA1037048A true CA1037048A (en) 1978-08-22

Family

ID=23574783

Family Applications (1)

Application Number Title Priority Date Filing Date
CA207,577A Expired CA1037048A (en) 1973-09-17 1974-08-22 Catalytic dehydrogenation process for the preparation of 3,5-disubstituted pyrazoles

Country Status (20)

Country Link
JP (1) JPS5855143B2 (nl)
AR (1) AR225264A1 (nl)
AT (1) AT339893B (nl)
BE (1) BE819948A (nl)
BR (1) BR7407147D0 (nl)
CA (1) CA1037048A (nl)
CH (1) CH596185A5 (nl)
CS (1) CS178177B2 (nl)
DD (1) DD115667A5 (nl)
DE (1) DE2441504A1 (nl)
DK (1) DK134643B (nl)
ES (1) ES430129A1 (nl)
FR (1) FR2243943B1 (nl)
GB (1) GB1477020A (nl)
IL (1) IL45399A (nl)
IT (1) IT1029578B (nl)
NL (1) NL168832C (nl)
SE (1) SE416648B (nl)
SU (1) SU645567A3 (nl)
ZA (1) ZA744908B (nl)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910949A (en) * 1974-12-09 1975-10-07 American Cyanamid Co Manufacture of 1,2-dimethyl-3,5-diphenylpyrazolium methylsulfate in a single reaction zone
DE3029160A1 (de) * 1980-08-01 1982-03-04 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von pyrazolen
NZ216253A (en) * 1985-05-27 1989-07-27 Mitsui Toatsu Chemicals N-(3-chloro-4-isopropylphenyl)-carboxamide derivatives and herbicidal compositions
US6291505B1 (en) 1998-08-07 2001-09-18 Chiron Corporation Estrogen receptor modulators
EP1102755B1 (en) 1998-08-07 2006-01-04 Chiron Corporation Substituted isoxazole derivatives as estrogen receptor modulators
USRE39708E1 (en) 1998-08-07 2007-06-26 Chiron Corporation Estrogen receptor modulators
US8710038B2 (en) * 2004-09-17 2014-04-29 Exelixis, Inc. Pyrazole kinase modulators and methods of use
PT2307381T (pt) * 2008-06-09 2021-03-15 Univ Muenchen Ludwig Maximilians Novas drogas para inibir a agregação de proteínas envolvidas em doenças relacionadas com a agregação de proteínas e/ou doenças neurodegenerativas

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2260485C2 (de) * 1971-12-17 1983-12-29 American Cyanamid Co., Wayne, N.J. 1,2-Dialkyl-3,5-diphenylpyrazoliumsalze und diese enthaltende herbizide Mittel
DE3209148A1 (de) * 1982-03-13 1983-09-22 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von pyrazolen durch katalytische dehydrierung von pyrazolinen

Also Published As

Publication number Publication date
ES430129A1 (es) 1977-01-16
GB1477020A (en) 1977-06-22
IL45399A0 (en) 1974-11-29
AT339893B (de) 1977-11-10
ATA738174A (de) 1977-03-15
IL45399A (en) 1979-01-31
DD115667A5 (nl) 1975-10-12
DK134643B (da) 1976-12-13
ZA744908B (en) 1975-08-27
DE2441504C2 (nl) 1987-11-26
BR7407147D0 (pt) 1975-07-29
JPS5058068A (nl) 1975-05-20
AU7202874A (en) 1976-03-11
SE416648B (sv) 1981-01-26
FR2243943B1 (nl) 1986-07-04
SE7411650L (nl) 1975-03-18
IT1029578B (it) 1979-03-20
NL168832B (nl) 1981-12-16
BE819948A (fr) 1975-03-17
DK487274A (nl) 1975-05-12
CH596185A5 (nl) 1978-03-15
NL168832C (nl) 1982-05-17
DK134643C (nl) 1977-05-16
DE2441504A1 (de) 1975-03-20
CS178177B2 (nl) 1977-08-31
FR2243943A1 (nl) 1975-04-11
AR225264A1 (es) 1982-03-15
SU645567A3 (ru) 1979-01-30
JPS5855143B2 (ja) 1983-12-08
NL7412119A (nl) 1975-03-19

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