JPS5498798A - Oxazolo(i,j)quinoline derivative - Google Patents

Oxazolo(i,j)quinoline derivative

Info

Publication number
JPS5498798A
JPS5498798A JP354578A JP354578A JPS5498798A JP S5498798 A JPS5498798 A JP S5498798A JP 354578 A JP354578 A JP 354578A JP 354578 A JP354578 A JP 354578A JP S5498798 A JPS5498798 A JP S5498798A
Authority
JP
Japan
Prior art keywords
formula
oxazolo
quinoline
acid
dione
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
JP354578A
Other languages
Japanese (ja)
Other versions
JPS5737595B2 (en
Inventor
Hisanori Matsui
Kuniaki Yanaka
Masahiro Shimosaka
Tatsuo Harada
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.)
Nihon Nohyaku Co Ltd
Original Assignee
Nihon Nohyaku Co 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 Nihon Nohyaku Co Ltd filed Critical Nihon Nohyaku Co Ltd
Priority to JP354578A priority Critical patent/JPS5498798A/en
Publication of JPS5498798A publication Critical patent/JPS5498798A/en
Publication of JPS5737595B2 publication Critical patent/JPS5737595B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

NEW MATERIAL:A 7-substituted-5,6-dihyclro-2H,4H-oxazolo(i,j)quinoline-2,6- dione of formula I: (R is lower alkyl group or halogen).
EXAMPLE: 7-Methyl-5,6-dihydro-2H,4H-oxazolo-(i,j)quinoline-2,6-dione.
USE: Protectants of plants from blight, particularly blast of rice plant.
PROCESS: A benzoxazolinone of formula II is reacted with a β-halogenopropionic acid in the presence of an alkali, e.g. NaOH or KOH, in a solvent, e.g. a lower alcohol or acetone, under heating to give a benzoxazolylpropionic acid of formula III, which is subjected to intramolecular ring closure via the form of an acid chloride of formula IV, or the compound of formula III is subjected to intramolecular ring closure in the presence of phosploric anhydride in a solvent under heating to give the objective oxazolo(i,j)quinoline derivative of formula I.
COPYRIGHT: (C)1979,JPO&Japio
JP354578A 1978-01-17 1978-01-17 Oxazolo(i,j)quinoline derivative Granted JPS5498798A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP354578A JPS5498798A (en) 1978-01-17 1978-01-17 Oxazolo(i,j)quinoline derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP354578A JPS5498798A (en) 1978-01-17 1978-01-17 Oxazolo(i,j)quinoline derivative

Publications (2)

Publication Number Publication Date
JPS5498798A true JPS5498798A (en) 1979-08-03
JPS5737595B2 JPS5737595B2 (en) 1982-08-10

Family

ID=11560379

Family Applications (1)

Application Number Title Priority Date Filing Date
JP354578A Granted JPS5498798A (en) 1978-01-17 1978-01-17 Oxazolo(i,j)quinoline derivative

Country Status (1)

Country Link
JP (1) JPS5498798A (en)

Also Published As

Publication number Publication date
JPS5737595B2 (en) 1982-08-10

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