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公开(公告)号:US4264777A
公开(公告)日:1981-04-28
申请号:US638109
申请日:1975-12-05
申请人: Takeo Yoshimoto , Takayuki Inoue , Hideo Michiyama , Takeo Harayama , Osamu Morikawa , Yoshikata Hojo , Takao Baba , Teruhiko Toyama , Masaaki Ura , Yoshio Takasawa
发明人: Takeo Yoshimoto , Takayuki Inoue , Hideo Michiyama , Takeo Harayama , Osamu Morikawa , Yoshikata Hojo , Takao Baba , Teruhiko Toyama , Masaaki Ura , Yoshio Takasawa
IPC分类号: A01N33/22 , A01N33/18 , A01P13/02 , C07C67/00 , C07C201/00 , C07C205/38 , C07C43/263 , A01N31/00
CPC分类号: C07C205/38
摘要: Nitrodiphenyl ether derivatives of the general formula: ##STR1## wherein X represents chlorine, fluorine, methyl or trifluoromethyl and n is an integer of 1-3 are valuable as herbicides, the compounds and compositions containing these compounds possessing an excellent herbicidal activity to a wide variety of undesirable weeds with an extremely low toxicity to useful crops.
摘要翻译: 硝基二苯醚衍生物,其通式如下:其中X代表氯,氟,甲基或三氟甲基,n是1-3的整数,作为除草剂是有价值的,含有这些化合物的化合物和组合物对广泛的除草活性具有优异的作用 各种对有用作物毒性极低的不良杂草。
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公开(公告)号:US4323389A
公开(公告)日:1982-04-06
申请号:US167154
申请日:1980-07-08
申请人: Takeo Yoshimoto , Takayuki Inoue , Hideo Michiyama , Takeo Harayama , Osamu Morikama , Yoshikata Hojo , Takao Baba , Teruhiko Toyama , Masaaki Ura , Yoshio Takasawa
发明人: Takeo Yoshimoto , Takayuki Inoue , Hideo Michiyama , Takeo Harayama , Osamu Morikama , Yoshikata Hojo , Takao Baba , Teruhiko Toyama , Masaaki Ura , Yoshio Takasawa
IPC分类号: A01N33/22 , A01N33/18 , A01P13/02 , C07C67/00 , C07C201/00 , C07C205/38 , A01N31/14
CPC分类号: C07C205/38
摘要: Nitrodiphenyl ether derivatives of the general formula: ##STR1## wherein X represents chlorine, fluorine, methyl or trifluoromethyl and n is an integer of 1-3 are valuable as herbicides, the compounds and compositions containing these compounds possessing an excellent herbicidal activity to a wide variety of undesirable weeds with an extremely low toxicity to useful crops.
摘要翻译: 硝基二苯醚衍生物,其通式如下:其中X代表氯,氟,甲基或三氟甲基,n是1-3的整数作为除草剂是有价值的,含有这些化合物的化合物和组合物对广泛的除草活性具有优异的作用 各种对有用作物毒性极低的不良杂草。
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公开(公告)号:US4062896A
公开(公告)日:1977-12-13
申请号:US515316
申请日:1974-10-16
申请人: Takeo Yoshimoto , Keiichi Igarashi , Takeo Harayama , Masaaki Ura , Teruhiko Toyama , Osamu Morikawa , Yoshio Takasawa , Yoshikata Hojo
发明人: Takeo Yoshimoto , Keiichi Igarashi , Takeo Harayama , Masaaki Ura , Teruhiko Toyama , Osamu Morikawa , Yoshio Takasawa , Yoshikata Hojo
IPC分类号: A01N33/12 , A01N33/22 , C07C67/00 , C07C201/00 , C07C205/38 , C07C43/22
CPC分类号: C07C205/38
摘要: Nitrodiphenyl ether derivatives of the general formula: ##STR1## wherein X stands for Cl, F, CH.sub.3 or CF.sub.3, n is an integer of 1-3 with the proviso that X may be the same or different when n is 2 or 3 but X.sub.n should not be 2,4-dichloro substituent,Are valuable as herbicides possessing an excellent herbicidal activity to a wide variety of undesirable weeds with an extremely low toxicity to useful crops. These nitrodiphenyl ether derivatives are prepared by hydroxyethylation of a compound of the above general formula except that a halogen atom is present in place of nitro group and subsequent halogenation of the .beta.-hydroxyethoxy group of the resulting compound.
摘要翻译: 硝基二苯醚衍生物,其通式如下:其中X代表Cl,F,CH3或CF3,n为1-3的整数,条件是当n为2或3时X可以相同或不同,但Xn 不应该是2,4-二氯取代基,作为除草剂可以作为除草剂具有优异的除草剂活性,适用于具有非常低的毒性的无毒可食用的有用的作物。 这些硝基二苯醚衍生物通过上述通式的化合物的羟乙基化制备,除了卤素原子代替硝基,随后卤化所得化合物的β-羟基乙氧基。
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公开(公告)号:US3969102A
公开(公告)日:1976-07-13
申请号:US499284
申请日:1974-08-21
申请人: Takeo Yoshimoto , Keiichi Igarashi , Takeo Harayama , Masaaki Ura , Naoki Sato , Teruhiko Toyama , Osamu Morikawa , Yoshio Takasawa , Taisuke Kurechi
发明人: Takeo Yoshimoto , Keiichi Igarashi , Takeo Harayama , Masaaki Ura , Naoki Sato , Teruhiko Toyama , Osamu Morikawa , Yoshio Takasawa , Taisuke Kurechi
IPC分类号: A01N33/22 , C07C67/00 , C07C201/00 , C07C205/38 , A01N9/24 , C07C43/20
CPC分类号: C07C205/38
摘要: 2,4-Dichloro-3'-(.beta.-chloroethoxy)-4'-nitrodiphenyl ether is prepared by condensing 2,3',4-trichloro-4'-nitrodiphenyl ether with ethyleneglycol in the presence of an acid-binding agent and then chlorinating the hydroxyethoxy group of the resulting condensate. This compound posesses an excellent herbicidal activity to a wide variety of undesirable weeds with an extremely low phyto-toxicity to useful crops.
摘要翻译: 2,4-二氯-3' - (β-氯乙氧基)-4'-硝基二苯醚是通过在酸结合剂存在下将2,3',4-三氯-4'-硝基二苯醚与乙二醇缩合制备的, 然后氯化所得缩合物的羟基乙氧基。 该化合物对各种不需要的杂草具有极好的除草活性,对有用的作物具有极低的植物毒性。
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