CA1060455A - 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
CA1060455A
CA1060455A CA242,256A CA242256A CA1060455A CA 1060455 A CA1060455 A CA 1060455A CA 242256 A CA242256 A CA 242256A CA 1060455 A CA1060455 A CA 1060455A
Authority
CA
Canada
Prior art keywords
mixture
reaction mixture
palladium
catalyst
reaction
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
CA242,256A
Other languages
English (en)
French (fr)
Inventor
Murray Garber
Walter J. Stepek
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
Priority claimed from US05/549,219 external-priority patent/US3952010A/en
Application filed by American Cyanamid Co filed Critical American Cyanamid Co
Application granted granted Critical
Publication of CA1060455A publication Critical patent/CA1060455A/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
    • 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)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
CA242,256A 1975-02-12 1975-12-22 Catalytic dehydrogenation process for the preparation of 3,5-disubstituted pyrazoles Expired CA1060455A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/549,219 US3952010A (en) 1973-09-17 1975-02-12 Catalytic dehydrogenation process for the preparation of 3,5-disubstituted pyrazoles

Publications (1)

Publication Number Publication Date
CA1060455A true CA1060455A (en) 1979-08-14

Family

ID=24192112

Family Applications (1)

Application Number Title Priority Date Filing Date
CA242,256A Expired CA1060455A (en) 1975-02-12 1975-12-22 Catalytic dehydrogenation process for the preparation of 3,5-disubstituted pyrazoles

Country Status (19)

Country Link
JP (2) JPS51101979A (cs)
AT (1) AT350549B (cs)
BE (1) BE838408R (cs)
BR (1) BR7600847A (cs)
CA (1) CA1060455A (cs)
CH (1) CH608004A5 (cs)
CS (1) CS192554B2 (cs)
DD (1) DD124249A6 (cs)
DE (1) DE2602965A1 (cs)
DK (1) DK55276A (cs)
ES (1) ES445094A2 (cs)
FR (1) FR2300763A2 (cs)
GB (1) GB1537859A (cs)
IL (1) IL48724A (cs)
IT (1) IT1053296B (cs)
NL (1) NL178075C (cs)
SE (1) SE7601544L (cs)
SU (1) SU799657A3 (cs)
ZA (1) ZA757986B (cs)

Families Citing this family (1)

* 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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5855148A (ja) * 1981-09-29 1983-04-01 Hino Motors Ltd 成形用金型の製造方法

Also Published As

Publication number Publication date
DD124249A6 (cs) 1977-02-09
CS192554B2 (en) 1979-08-31
SU799657A3 (ru) 1981-01-23
BE838408R (fr) 1976-08-10
FR2300763A2 (fr) 1976-09-10
DK55276A (da) 1976-08-13
IL48724A (en) 1979-07-25
FR2300763B2 (cs) 1982-09-03
GB1537859A (en) 1979-01-04
BR7600847A (pt) 1976-09-14
NL178075C (nl) 1986-01-16
ZA757986B (en) 1976-12-29
AT350549B (de) 1979-06-11
CH608004A5 (en) 1978-12-15
IT1053296B (it) 1981-08-31
NL7600445A (nl) 1976-08-16
SE7601544L (sv) 1976-08-13
DE2602965C2 (cs) 1988-11-17
AU8790475A (en) 1977-06-30
ES445094A2 (es) 1977-06-16
DE2602965A1 (de) 1976-08-26
IL48724A0 (en) 1976-02-29
ATA96276A (de) 1978-11-15
JPS6227068B2 (cs) 1987-06-12
JPS51101979A (cs) 1976-09-08
JPS60222463A (ja) 1985-11-07
NL178075B (nl) 1985-08-16

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