JPS54115374A - Pyrazoline derivatives and their preparation - Google Patents

Pyrazoline derivatives and their preparation

Info

Publication number
JPS54115374A
JPS54115374A JP2150878A JP2150878A JPS54115374A JP S54115374 A JPS54115374 A JP S54115374A JP 2150878 A JP2150878 A JP 2150878A JP 2150878 A JP2150878 A JP 2150878A JP S54115374 A JPS54115374 A JP S54115374A
Authority
JP
Japan
Prior art keywords
formula
keto
compound
reacted
acidic conditions
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
JP2150878A
Other languages
Japanese (ja)
Other versions
JPS6334148B2 (en
Inventor
Tamio Nishimura
Yoshiko Miyamoto
Kuniomi Matsumoto
Tetsuo 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.)
Meiji Seika Kaisha Ltd
Original Assignee
Meiji Seika Kaisha 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 Meiji Seika Kaisha Ltd filed Critical Meiji Seika Kaisha Ltd
Priority to JP2150878A priority Critical patent/JPS54115374A/en
Publication of JPS54115374A publication Critical patent/JPS54115374A/en
Publication of JPS6334148B2 publication Critical patent/JPS6334148B2/ja
Granted legal-status Critical Current

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  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

NEW MATERIAL:Pryazoline derivatives of formulas I, II, and III: (R1 is methyl or phenyl group; R2 is H, 1W10C alkyl, or aralkyl group; R3 is H, 1W4C alkyl, or alkenyl group), which are tautomers.
EXAMPLE: 1-Thio carbomoyl-3-methylpyrazoline-5-one.
USE: Aricultural and horticultural fungicides, having a wide range of antibacterial activity on agriculatural and horticultural pathogenic fungi, particularly effective for blast of rice plants powdery meldew and anthracnose of cucumbers.
PROCESS: A β-keto-acid ester of formula IV: (Z is OC2H5) or a β-keto-acid amide (Z is NH2, NHCH3, etc.) is reacted with a thiosemicarbazide of formula V under acidic conditions to form the compound of formula I, II or III. Alternatively, the compound of formula IV is reacted with the compound of formula V under neutral or weakly acidic conditions to give a β-keto-acid ester thiosemicarbazone, which is reacted under strongly acidic conditions.
COPYRIGHT: (C)1979,JPO&Japio
JP2150878A 1978-02-28 1978-02-28 Pyrazoline derivatives and their preparation Granted JPS54115374A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2150878A JPS54115374A (en) 1978-02-28 1978-02-28 Pyrazoline derivatives and their preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2150878A JPS54115374A (en) 1978-02-28 1978-02-28 Pyrazoline derivatives and their preparation

Publications (2)

Publication Number Publication Date
JPS54115374A true JPS54115374A (en) 1979-09-07
JPS6334148B2 JPS6334148B2 (en) 1988-07-08

Family

ID=12056901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2150878A Granted JPS54115374A (en) 1978-02-28 1978-02-28 Pyrazoline derivatives and their preparation

Country Status (1)

Country Link
JP (1) JPS54115374A (en)

Also Published As

Publication number Publication date
JPS6334148B2 (en) 1988-07-08

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