JPS54148786A - Preparation of 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5- hydroxypyrazole - Google Patents

Preparation of 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5- hydroxypyrazole

Info

Publication number
JPS54148786A
JPS54148786A JP5561578A JP5561578A JPS54148786A JP S54148786 A JPS54148786 A JP S54148786A JP 5561578 A JP5561578 A JP 5561578A JP 5561578 A JP5561578 A JP 5561578A JP S54148786 A JPS54148786 A JP S54148786A
Authority
JP
Japan
Prior art keywords
dimethyl
dichlorobenzoyl
hydroxypyrazole
preparation
pyrazolone
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.)
Granted
Application number
JP5561578A
Other languages
Japanese (ja)
Other versions
JPS5917113B2 (en
Inventor
Shigeki Nagai
Masaaki Takenaka
Minoru Nishimura
Masanori Watanabe
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.)
Ube Corp
Original Assignee
Ube Industries Ltd
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 Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP53055615A priority Critical patent/JPS5917113B2/en
Publication of JPS54148786A publication Critical patent/JPS54148786A/en
Publication of JPS5917113B2 publication Critical patent/JPS5917113B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the title compound useful as herbicides in one stage in high yield, by reacting 1,3-dimethyl-5-pyrazolone with 2,4-dichlorobenzoyl chloride.
CONSTITUTION: One mole of 1,3-dimethyl-5-pyrazolone is reacted with 2,4-dichlorobenzoyl chloride in the presence of 1W4 moles of an alkali metal carbonate in a solvent, e.g. a cyclic ether or ≥4C alcohol to give a 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5-hydroxypyrazole which exists in various tautomers of formula. THF, tert-butanol, or tert-amyl alcohol, is preferred as the solvent. K2CO3 or Na2CO3 is preferred as the carbonate.
COPYRIGHT: (C)1979,JPO&Japio
JP53055615A 1978-05-12 1978-05-12 Method for producing 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5-hydroxypyrazole Expired JPS5917113B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53055615A JPS5917113B2 (en) 1978-05-12 1978-05-12 Method for producing 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5-hydroxypyrazole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53055615A JPS5917113B2 (en) 1978-05-12 1978-05-12 Method for producing 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5-hydroxypyrazole

Publications (2)

Publication Number Publication Date
JPS54148786A true JPS54148786A (en) 1979-11-21
JPS5917113B2 JPS5917113B2 (en) 1984-04-19

Family

ID=13003673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53055615A Expired JPS5917113B2 (en) 1978-05-12 1978-05-12 Method for producing 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5-hydroxypyrazole

Country Status (1)

Country Link
JP (1) JPS5917113B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6330415U (en) * 1986-08-06 1988-02-27
JPS6389211A (en) * 1986-09-30 1988-04-20 Toshiba Tungaloy Co Ltd Twist drill
JPS63161705U (en) * 1987-04-03 1988-10-21

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029477A (en) * 1973-03-09 1975-03-25
JPS50126830A (en) * 1974-03-28 1975-10-06
JPS51106738A (en) * 1975-03-12 1976-09-21 Sankyo Co JOSOZAI

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029477A (en) * 1973-03-09 1975-03-25
JPS50126830A (en) * 1974-03-28 1975-10-06
JPS51106738A (en) * 1975-03-12 1976-09-21 Sankyo Co JOSOZAI

Also Published As

Publication number Publication date
JPS5917113B2 (en) 1984-04-19

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