申请人:NISSAN CHEMICAL INDUSTRIES, LIMITED
公开号:EP0747352A1
公开(公告)日:1996-12-11
The present invention provides a nitrogen-containing cyclic compound represented by the formula (1):
(wherein R1 represents an alkyl group; R represents a hydrogen atom or an alkyl group; X represents an oxygen or sulfur atom or NR3; Q1 represents a hydrogen atom, or an alkyl, cycloalkyl, alkenyl or alkynyl group, or a phenyl, naphthyl or heterocyclic group etc.; Q2 represents an alkyl, cycloalkyl or alkenyl group, or a phenyl or thienyl group etc.; A1 represents a carbon or nitrogen atom; A2 represents CR2 or NR2, or an oxygen or sulfur atom, or SO or SO2; A3 represents a single bond, or an oxygen or sulfur atom, or CR5 or NR5), and a herbicide comprising the same , which herbicide exhibits very high herbicidal activity at very low application rate and has selectivity against crops.
本发明提供了一种由式(1)表示的含氮环状化合物:
(其中 R1 代表烷基;R 代表氢原子或烷基;X 代表氧原子或硫原子或 NR3;Q1 代表氢原子,或烷基、环烷基、烯基或炔基,或苯基、萘基或杂环基等;Q2 代表烷基、环烷基或烯基,或苯基或噻吩基等。A1代表碳原子或氮原子;A2代表CR2或NR2,或氧原子或硫原子,或SO或SO2;A3代表单键,或氧原子或硫原子,或CR5或NR5),以及由相同成分组成的除草剂,该除草剂以极低的施用量表现出极高的除草活性,并对作物具有选择性。