AR054874A1 - METHOD TO PRODUCE A DERIVATIVE OF 5- HIDROXI -1-ALQUILPIRAZOL - Google Patents

METHOD TO PRODUCE A DERIVATIVE OF 5- HIDROXI -1-ALQUILPIRAZOL

Info

Publication number
AR054874A1
AR054874A1 ARP060103247A ARP060103247A AR054874A1 AR 054874 A1 AR054874 A1 AR 054874A1 AR P060103247 A ARP060103247 A AR P060103247A AR P060103247 A ARP060103247 A AR P060103247A AR 054874 A1 AR054874 A1 AR 054874A1
Authority
AR
Argentina
Prior art keywords
alquilpirazol
hidroxi
derivative
produce
alkyl group
Prior art date
Application number
ARP060103247A
Other languages
Spanish (es)
Inventor
Nobuhiko Iwahori
Yukio Uchida
Original Assignee
Ihara Chemical Ind 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 Ihara Chemical Ind Co filed Critical Ihara Chemical Ind Co
Publication of AR054874A1 publication Critical patent/AR054874A1/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
    • C07D231/14—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 hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D231/18—One oxygen or sulfur atom
    • C07D231/20—One oxygen atom attached in position 3 or 5

Abstract

Un método para producir un derivado de 5-hidroxi-1-alquilpirazol representado por la formula general (3); donde R2 representa un grupo extractor de electrones, y R3 representa un grupo alquilo C1-6, caracterizado porque un compuesto beta-cetoéster representado por la formula (1) donde R1 representa un grupo alquilo C1-6, y R2 tiene el mismo significado dado anteriormente, se hace reaccionar con una alquilhidrazina representada por la siguiente formula (2) donde R3 tiene el significado ya indicado, bajo una condicion ácida.A method for producing a 5-hydroxy-1-alkylpyrazole derivative represented by the general formula (3); where R2 represents an electron extractor group, and R3 represents a C1-6 alkyl group, characterized in that a beta-ketoester compound represented by formula (1) where R1 represents a C1-6 alkyl group, and R2 has the same given meaning above, it is reacted with an alkylhydrazine represented by the following formula (2) where R3 has the meaning already indicated, under an acidic condition.

ARP060103247A 2005-07-27 2006-07-27 METHOD TO PRODUCE A DERIVATIVE OF 5- HIDROXI -1-ALQUILPIRAZOL AR054874A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005217098A JP2007031342A (en) 2005-07-27 2005-07-27 Method for producing 5-hydroxy-1-alkylpyrazole derivative

Publications (1)

Publication Number Publication Date
AR054874A1 true AR054874A1 (en) 2007-07-25

Family

ID=37683427

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP060103247A AR054874A1 (en) 2005-07-27 2006-07-27 METHOD TO PRODUCE A DERIVATIVE OF 5- HIDROXI -1-ALQUILPIRAZOL

Country Status (4)

Country Link
JP (1) JP2007031342A (en)
AR (1) AR054874A1 (en)
TW (1) TW200740763A (en)
WO (1) WO2007013536A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102666503B (en) 2009-11-26 2015-01-07 巴斯夫欧洲公司 Method for producing 5,5-disubstituted 2-isoxazolines
DK2571854T3 (en) 2010-05-20 2015-02-09 Bayer Ip Gmbh PROCESS FOR THE PREPARATION OF 1-alkyl-3-difluoromethyl-5-hydroxypyrazoles
US20180230103A1 (en) * 2015-11-16 2018-08-16 Lonza Ltd Method for preparation of 1-methyl-3-(trifluoromethyl)-1h-pyrazol-5-ol
CN112135814B (en) * 2018-05-31 2021-09-28 组合化学工业株式会社 Process for producing fluorine-containing pyrazole derivative and intermediate therefor
CN115385792B (en) * 2021-05-21 2024-02-02 帕潘纳(北京)科技有限公司 Process for the preparation of pyrazole herbicide intermediates

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06199804A (en) * 1992-09-29 1994-07-19 Nippon Nohyaku Co Ltd Production of 3-substituted phenyl-5-hydroxypyrazole derivative
WO1997018196A1 (en) * 1995-11-15 1997-05-22 Zeneca Limited Herbicidal substituted pyrazole compounds
JPH10287654A (en) * 1997-04-11 1998-10-27 Nissan Chem Ind Ltd Pyrazolone derivative, and herbicide
DE10020665A1 (en) * 2000-04-27 2001-10-31 Schlafhorst & Co W Method for operating a textile machine producing cross-wound bobbins
JP4551764B2 (en) * 2002-08-01 2010-09-29 イハラケミカル工業株式会社 Pyrazole derivative and method for producing the same
JP4621939B2 (en) * 2004-03-31 2011-02-02 イハラケミカル工業株式会社 Process for producing 5-hydroxy-4-thiomethylpyrazole compound

Also Published As

Publication number Publication date
WO2007013536A1 (en) 2007-02-01
JP2007031342A (en) 2007-02-08
TW200740763A (en) 2007-11-01

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