N-ARYLOXYCARBAMIC ACID ESTERS, PRODUCTION THEREOF AND HERBICIDE COMPRISING SAID ESTERS AS ACTIVE INGREDIENT

Title:

N-ARYLOXYCARBAMIC ACID ESTERS, PRODUCTION THEREOF AND HERBICIDE COMPRISING SAID ESTERS AS ACTIVE INGREDIENT

Document Type and Number:

Japanese Patent JPS649969

Kind Code:

A

Abstract:

NEW MATERIAL:An N-aryloxycarbamic acid esters shown by formula I (A is =CH- or N; X and Y are H, Cl or trifluoromethyl; X and Y are not H at the same time; R is lower alkyl).

EXAMPLE: N-(2,5-Dichlorophenoxy)carbamic acid methyl ester.

USE: Useful as a herbicide showing effects on annual weeds such as Echinochloa crus-galli Beauv. var. praticola Ohwi., perennial weeds such as bulrush or slender spikerush occurring in paddy fields in germination and growth period and no phytotoxicity to paddy rice plants. Exhibiting effects on gramineous weeds such as barnyard millet or cyperaceous weeds such as yellow cyperus by soil treatment and foliar treatment and high safety to crops.

PREPARATION: An aryloxyamine shown by formula II is reacted with chloroformic ester shown by formula III in the presence of a base to give a compound shown by formula I.

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Inventors:

HASHIMOTO ISAO
ISHIDA TATSUKAZU
TSURU KAZUTAKA

Application Number:

JP16397487A

Publication Date:

January 13, 1989

Filing Date:

July 02, 1987

Export Citation:

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Assignee:

MITSUI PETROCHEMICAL IND
KUMIAI CHEMICAL INDUSTRY CO

International Classes:

C07D213/64; A01N47/12; C07C67/00; C07C239/00; C07C269/00; (IPC1-7): A01N47/12; C07C125/065; C07D213/64

Attorney, Agent or Firm:

Yanagihara

Next Patent: PRODUCTION OF 4,4'-DIHYDROXYDIPHENYLSULFONE