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Patent Searching and Data


Title:
SUBSTITUTED BICYCLOHEPTANEDIONE DERIVATIVE AND HERBICIDE
Document Type and Number:
Japanese Patent JPH07196585
Kind Code:
A
Abstract:

PURPOSE: To obtain a new derivative synthesizable in an industrially advantageous way, and useful as a highly safe herbicide having assured effect at lower doses good in selectivity for crops.

CONSTITUTION: This derivative (salt) is expressed by formula I or formula II [R1 is a (substituted) 1-6C alkyl or a (substituted) phenyl, etc.; R2 is a halogen, (substituted) 1-6C alkoxyl, etc.; (n) is 0-4; R3 and R4 are each H or a (substituted) 1-6C alkyl; R5 is a halogen, OCN, etc.), e.g. 2-acetoxy-5-ethoxycarbonyl-3-(3- methoxy-2-methyl-4-methylsulfonylbenzoyl)-5-methyl-2-bicyclo[4.1.0]hepten-4-one. This derivative can be obtained by reaction of a trione form of formula III with a compound of formula R6COX [R6 is a (substituted) 1-6C alkyl, a (substituted) alkenyl, etc.] in a solvent at -20°C to room temperature in the presence of a base for 0.5 to several tens hours.


Inventors:
MATSUHASHI TAISUKE
SUGIURA TADASHI
YANAKA SATORU
ADACHI HIROYUKI
TOMITA KAZUYUKI
TAKAHASHI AKIHIRO
KAWANA TAKASHI
Application Number:
JP25752894A
Publication Date:
August 01, 1995
Filing Date:
September 27, 1994
Export Citation:
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Assignee:
NIPPON SODA CO
International Classes:
C07D295/10; A01N35/06; A01N47/48; C07C205/45; C07C255/47; C07C307/02; C07C309/63; C07C317/24; C07C323/22; C07C331/08; C07C331/10; C07C331/14; (IPC1-7): C07C205/45; A01N35/06; A01N47/48; C07C255/47; C07C307/02; C07C309/63; C07C317/24; C07C323/22; C07C331/08; C07C331/10; C07C331/14; C07D295/10
Attorney, Agent or Firm:
Yusaku Tokai