TETRAHYDROTRIAZOLOPYRIDAZINE DERIVATIVE, ITS PREPARATION, AND HERBICIDE COMPRISING SAME AS ACTIVE INGREDIENT

Title:

TETRAHYDROTRIAZOLOPYRIDAZINE DERIVATIVE, ITS PREPARATION, AND HERBICIDE COMPRISING SAME AS ACTIVE INGREDIENT

Document Type and Number:

Japanese Patent JPS6178788

Kind Code:

A

Abstract:

NEW MATERIAL:A compound shown by the formula I (R1 is H, or methyl; R2 is lower alkyl, lower alkenyl, lower alkynyl, or lower alkoxymethyl; X is H, or F).

EXAMPLE: 2-(4-Allyl-7-fluoro-2H-benzoxazin-3(4H)-on-6-yl)hexahy-dr-o-3-thioxo-1H-[1,2,4]triazole[1,2-a]pyridazin-1-one.

USE: A herbicide.

PREPARATION: A tetrahydropyridazine derivative [e.g., 1-(4-allyl-7-fluoro-2H-benzoxazin-3(4H)-on-6-ylaminothiocar-bonyl)-2-ethoxycarbonylhexahydropyridazine, etc.] shown by the formula II (R3 is lower alkyl) is heated in the presence of preferably 0.01W1 equivalent base (e.g., sodium methoxide, etc.).

Inventors:

HAGA TORU
NAGANO HIDEYOSHI
SATO MAKOTO
MORITA KOICHI

Application Number:

JP20378584A

Publication Date:

April 22, 1986

Filing Date:

September 27, 1984

Export Citation:

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Assignee:

SUMITOMO CHEMICAL CO

International Classes:

A01N43/90; C07D487/04; A01N; C07D; (IPC1-7): A01N43/90; C07D487/04

Attorney, Agent or Firm:

Moroishi Mitsuhiro

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