公开(公告)号：EP0402893A1

公开(公告)日：1990-12-19

申请号：EP90111191.4

申请日：1990-06-13

申请人： MITSUI TOATSU CHEMICALS, Inc.

发明人： Oda, Kengo ,  Moriyasu, Koichi ,  Hayashi, Masao ,  Nishida, Makoto ,  Oyamada, Masami ,  Fujiwara, Akie ,  Watanabe, Junko

IPC分类号： C07D207/273 ,  A01N43/36

CPC分类号： C07D207/273 ,  A01N43/36

摘要： 1-(3-Substituted benzyl)-3-halogeno-4-(1-halogenoalkyl)-2-pyrrolidinones of the general formula (I):
where X represents a hydrogen atom or halogen atom, Y and Z each represents a chlorine atom or bromine atom, and R represents an alkyl group with 2 to 4 carbon atoms, are herbicides useful in rice paddy fields to control weeds therein, especially Echinochloa crusgalli and can be produced subjecting the corresponding 3-dihalogeno compounds to dehalogenation to remove one of the halogen atoms or by cyclizing a 2,2-dihalogenoacetamide derivative represented by the general formula (II) under the presence of an appropriate catalyst;
in which X, Y, Z and R respectively have the same meanings as described above.

摘要翻译： 通式（I）的1-（3-取代苄基）-3-卤代-4-（1-卤代烷基）-2-吡咯烷酮：其中X表示氢原子或卤原子，Y和Z各自表示 氯原子或溴原子，R代表具有2至4个碳原子的烷基，是用于稻田的除草剂以控制其中的杂草，特别是稗草，并且可以生产相应的3-二卤代化合物脱卤以去除 一种卤素原子或通过在合适的催化剂存在下环化由通式（II）表示的2,2-二卤代乙酰胺衍生物; 其中X，Y，Z和R分别具有与上述相同的含义。

公开(公告)号：EP0374839A1

公开(公告)日：1990-06-27

申请号：EP89123466.8

申请日：1989-12-19

申请人： MITSUI TOATSU CHEMICALS, Inc.

发明人： Gohbara, Masatoshi ,  Asano, Tamotsu ,  Ozawa, Shuji ,  Yamazaki, Hideo ,  Ishii, Tsutomu ,  Nishida, Makoto ,  Watanabe, Junko ,  Sato, Naoki

IPC分类号： C07D239/60 ,  A01N43/54

CPC分类号： C07D239/60 ,  A01N43/54

摘要： Disclosed are herbicidally active pyrimidine derivatives of the formula
wherein R represents a hydrogen atom or an etherifying group, e.g., a lower alkyl, lower alkenyl, lower alkynyl, phenyl-substituted lower alkenyl, lower haloalkenyl, cycloalkyl, substituted phenyl-substituted lower alkenyl or phenyl-substituted lower alkynyl group; or a group represented by the following formula:
wherein R 1 represents a hydrogen atom or a lower alkyl group, X a halogen atom or a lower alkyl or lower alkoxyl group, m and n individually 0-2, and when m is 2, both Xs may be the same or different, and herbicidal compositions containing the same, alone or in combination with another herbicidally active compound, the pyrimidine derivatives being prepared by reaction of 2-(4,6-dimethoxy-2-pyrimidinyloxy)-benzaldehyde with NH 2 0R or with a salt of hydroxylamine followed by reaction with a halide of the formula RY wherein R has the same value as above and Y is CI, Br or I.

摘要翻译： 所公开的是在醚化基团，例如，低级烷基，低级链烯基的式 worinřdarstellt氢原子或除草活性的嘧啶衍生物，低级炔基，苯基 - substituiertem低级烯基，低级卤代链烯基，环烷基，substituiertem苯基substituiertem 低级链烯基或苯基取代的低级链炔基; 或由下式表示的基团： worin - [R <1> darstellt氢原子或低级烷基，X为卤素原子或低级烷基或低级烷氧基，m和n独立0-2，和当 m为2，两个X可以是包含相同或不同，且除草组合物是相同的，单独使用或与另一种除草活性化合物组合，由2-（4,6-二甲氧基-2-嘧啶氧基的反应制备的嘧啶衍生物 ）苯甲醛与NH 2或或随后的反应与式RY worin R的卤化物羟胺的盐具有相同的值如上述，Y是Cl，Br或I.