JPS57175155A - Alpha-isocyanoacrylic amide derivative, its preparation and herbicide - Google Patents

Alpha-isocyanoacrylic amide derivative, its preparation and herbicide

Info

Publication number
JPS57175155A
JPS57175155A JP56058835A JP5883581A JPS57175155A JP S57175155 A JPS57175155 A JP S57175155A JP 56058835 A JP56058835 A JP 56058835A JP 5883581 A JP5883581 A JP 5883581A JP S57175155 A JPS57175155 A JP S57175155A
Authority
JP
Japan
Prior art keywords
compound shown
alkyl
herbicide
phenyl
formula
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
JP56058835A
Other languages
Japanese (ja)
Inventor
Naoto Yoneda
Kazuo Matsumoto
Kazuo Takiguchi
Seiji Matsubayashi
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.)
Tanabe Pharma Corp
Original Assignee
Tanabe Seiyaku 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 Tanabe Seiyaku Co Ltd filed Critical Tanabe Seiyaku Co Ltd
Priority to JP56058835A priority Critical patent/JPS57175155A/en
Publication of JPS57175155A publication Critical patent/JPS57175155A/en
Pending legal-status Critical Current

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Landscapes

  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Heterocyclic Compounds Containing Sulfur Atoms (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

NEW MATERIAL:A compound shown by the formulaI(R1 and R2 are alkyl, phenyl, halogen-substituted phenyl, etc.; R3 and R4 are alkyl, phenyl, or R3 and R4 are linked to neighboring N to form alkyl-substituted or unsubstituted heterocyclic monocyclic group).
EXAMPLE: N-(2-Isocyano-2-cyclohexylideneacetyl)piperidine.
USE: A herbicide. Having improved withering action on various kinds of weeds, especially broadleaf weeds, further high safety to various kinds of crops.
PROCESS: An α-formylaminoacrylic amide compound shown by the formulaII is reacted with a dehydrating agent such as phosphorus oxychloride in the presence of a deoxidizer (e.g., triethylamine, etc.) in a solvent such as benzene at -20W 50°C, to give a compound shown by the formulaI. The compound shown by the formula II, a raw material, is a novel compound, and obtained by reacting a ketone compound shown by the formula III with an α-isocyanoacetic amide compound shown by the formula IV.
COPYRIGHT: (C)1982,JPO&Japio
JP56058835A 1981-04-17 1981-04-17 Alpha-isocyanoacrylic amide derivative, its preparation and herbicide Pending JPS57175155A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56058835A JPS57175155A (en) 1981-04-17 1981-04-17 Alpha-isocyanoacrylic amide derivative, its preparation and herbicide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56058835A JPS57175155A (en) 1981-04-17 1981-04-17 Alpha-isocyanoacrylic amide derivative, its preparation and herbicide

Publications (1)

Publication Number Publication Date
JPS57175155A true JPS57175155A (en) 1982-10-28

Family

ID=13095703

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56058835A Pending JPS57175155A (en) 1981-04-17 1981-04-17 Alpha-isocyanoacrylic amide derivative, its preparation and herbicide

Country Status (1)

Country Link
JP (1) JPS57175155A (en)

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