JPS6490188A - Pyridinecarboxylic acid ester and selective herbicide - Google Patents

Pyridinecarboxylic acid ester and selective herbicide

Info

Publication number
JPS6490188A
JPS6490188A JP24850187A JP24850187A JPS6490188A JP S6490188 A JPS6490188 A JP S6490188A JP 24850187 A JP24850187 A JP 24850187A JP 24850187 A JP24850187 A JP 24850187A JP S6490188 A JPS6490188 A JP S6490188A
Authority
JP
Japan
Prior art keywords
methyl
treated
pyridinecarboxylic acid
selective herbicide
acid ester
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.)
Pending
Application number
JP24850187A
Other languages
Japanese (ja)
Inventor
Tatsuo Numata
Masataka Hatanaka
Junichi Watanabe
Takashi Igai
Tsutomu Nawamaki
Shigeomi 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.)
Nissan Chemical Corp
Original Assignee
Nissan Chemical Corp
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 Nissan Chemical Corp filed Critical Nissan Chemical Corp
Priority to JP24850187A priority Critical patent/JPS6490188A/en
Publication of JPS6490188A publication Critical patent/JPS6490188A/en
Pending legal-status Critical Current

Links

Landscapes

  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

NEW MATERIAL:Methyl 6-[4, 5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imi dazol2-yl]-3,4-dihydro-2H-pyrano[3,2-b]pyridine-7-carboxylate. USE:A selective herbicide for wheat-oats. PREPARATION:A pyridinecarboxylic acid expressed by formula II is treated with methanol in an acid catalyst, or treated with diazomethane in an inert solvent, or treated, as necessary, in the presence of a base, with methyl iodide, methyl chloride, methyl bromide, dimethyl sulfate or trimethyloxonium tetrafluoroborate.
JP24850187A 1987-10-01 1987-10-01 Pyridinecarboxylic acid ester and selective herbicide Pending JPS6490188A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24850187A JPS6490188A (en) 1987-10-01 1987-10-01 Pyridinecarboxylic acid ester and selective herbicide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24850187A JPS6490188A (en) 1987-10-01 1987-10-01 Pyridinecarboxylic acid ester and selective herbicide

Publications (1)

Publication Number Publication Date
JPS6490188A true JPS6490188A (en) 1989-04-06

Family

ID=17179111

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24850187A Pending JPS6490188A (en) 1987-10-01 1987-10-01 Pyridinecarboxylic acid ester and selective herbicide

Country Status (1)

Country Link
JP (1) JPS6490188A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991013069A1 (en) * 1990-02-28 1991-09-05 Korea Research Institute Of Chemical Technology Herbicidal pyridine derivatives and their salts of 3-(aminooxoacetyl)-2-(2-imidazolin-2-yl)
US6330023B1 (en) * 1994-03-18 2001-12-11 American Telephone And Telegraph Corporation Video signal processing systems and methods utilizing automated speech analysis
CN102516253A (en) * 2011-12-27 2012-06-27 盛世泰科生物医药技术(苏州)有限公司 Method for synthesizing 3,4-dihydro-2H-pyrano[3,2-b]pyridine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991013069A1 (en) * 1990-02-28 1991-09-05 Korea Research Institute Of Chemical Technology Herbicidal pyridine derivatives and their salts of 3-(aminooxoacetyl)-2-(2-imidazolin-2-yl)
US6330023B1 (en) * 1994-03-18 2001-12-11 American Telephone And Telegraph Corporation Video signal processing systems and methods utilizing automated speech analysis
CN102516253A (en) * 2011-12-27 2012-06-27 盛世泰科生物医药技术(苏州)有限公司 Method for synthesizing 3,4-dihydro-2H-pyrano[3,2-b]pyridine

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