公开(公告)号：US4259489A

公开(公告)日：1981-03-31

申请号：US969938

申请日：1978-12-15

申请人： Tetsuo Takematsu ,  Hirozo Segawa ,  Takamaro Miura ,  Toshiei Ataka ,  Michio Chatani ,  Akira Nakamura

发明人： Tetsuo Takematsu ,  Hirozo Segawa ,  Takamaro Miura ,  Toshiei Ataka ,  Michio Chatani ,  Akira Nakamura

IPC分类号： A01N43/60 ,  A01N43/70 ,  A01N43/88 ,  A01N47/12 ,  A01N47/16 ,  C07D241/24 ,  C07D241/26 ,  C07D241/06

CPC分类号： C07D241/26 ,  A01N43/60 ,  A01N43/70 ,  A01N43/88 ,  A01N47/12 ,  A01N47/16 ,  C07D241/24

摘要： Novel 2,3-dicyanopyrazine derivatives of the formula ##STR1## wherein A represents a hydrogen atom, a lower alkyl group, an unsubstituted or substituted phenyl group, a benzyl group, or a group of the formula -ZR.sub.1 in which Z represents an oxygen or sulfur atom and R.sub.1 represents an unsubstituted or substituted lower alkyl group, a lower alkenyl group, a lower alkynyl group, an unsubstituted or substituted phenyl group, or an unsubstituted or substituted benzyl group; and B represents a halogen atom, an alkyl group containing at least 3 carbon atoms, a phenyl group having a substituent at the ortho- and/or meta-position of the benzene ring, a group of the formula ZR.sub.1 in which Z and R.sub.1 are as defined, or a group of the formula ##STR2## in which R.sub.2 and R.sub.3, independently from each other, represent a hydrogen atom, an unsubstituted or substituted lower alkyl group, a lower alkenyl group, a cycloalkyl group, an unsubstituted or substituted phenyl group, or an unsubstituted or substituted benzyl group, with the proviso that R.sub.2 and R.sub.3 do not represent a hydrogen atom at the same time, and R.sub.2 and R.sub.3 together may form a 3- to 7-membered heterocyclic ring together with the nitrogen atom to which they are bonded, said heterocyclic ring optionally containing an additional hetero atom; and processes for production thereof.These compounds have high herbicidal activity, and are useful as active ingredients of herbicides.

摘要翻译： 式IMA的新型2,3-二氰基吡嗪衍生物，其中A表示氢原子，低级烷基，未取代或取代的苯基，苄基或式-ZR1的基团，其中Z表示氧 或硫原子，R 1表示未取代或取代的低级烷基，低级烯基，低级炔基，未取代或取代的苯基，或未取代或取代的苄基; B表示卤素原子，含有3个以上碳原子的烷基，苯环的邻位和/或间位具有取代基的苯基，Z和R1分别为式ZR1的基团 或其中R2和R3彼此独立地表示氢原子，未取代或取代的低级烷基，低级烯基，环烷基，未取代或取代的苯基的式 基团或未取代或取代的苄基，条件是R 2和R 3不同时表示氢原子，并且R 2和R 3一起可以与氮原子一起形成3-至7-元杂环， 所述杂环任选地含有另外的杂原子; 及其生产方法。 这些化合物具有高除草活性，可用作除草剂的活性成分。

公开(公告)号：US5118487A

公开(公告)日：1992-06-02

申请号：US580868

申请日：1990-09-11

申请人： Akira Nakamura ,  Matsuo Ono ,  Toshiei Ataka ,  Hideo Shirakawa ,  Shizuo Noguchi ,  Hirozo Segawa

发明人： Akira Nakamura ,  Matsuo Ono ,  Toshiei Ataka ,  Hideo Shirakawa ,  Shizuo Noguchi ,  Hirozo Segawa

IPC分类号： C01C3/14

CPC分类号： C01C3/145

摘要： Provided is a process for producing chlorosulfonyl isocyanate by reacting sulfur trioxide with cyanogen chloride, which comprises feeding sulfur trioxide and cyanogen chloride simultaneously to the reaction zone and maintaining the temperature of the reacting zone at 10.degree. to 50.degree. C. This is a commercially very simple process and can produce chlorosulfonyl isocyanate with high purity in high yield.

摘要翻译： 本发明提供了一种通过使三氧化硫与氯化氰反应来制备氯磺酰基异氰酸酯的方法，该方法包括同时向反应区中加入三氧化硫和氯化氰，并将反应区的温度保持在10℃至50℃。这是商业上非常 简单的工艺，可以高产率生产高纯度的氯磺酰基异氰酸酯。

公开(公告)号：US4460403A

公开(公告)日：1984-07-17

申请号：US204038

申请日：1980-11-04

申请人： Tetsuo Takematsu ,  Hirozo Segawa ,  Takamaro Miura ,  Toshiei Ataka ,  Michio Chatani ,  Akira Nakamura

发明人： Tetsuo Takematsu ,  Hirozo Segawa ,  Takamaro Miura ,  Toshiei Ataka ,  Michio Chatani ,  Akira Nakamura

IPC分类号： A01N25/30 ,  A01N43/60 ,  A01N43/70 ,  A01N43/88 ,  A01N47/12 ,  A01N47/16 ,  A01P13/00 ,  C07D241/14 ,  C07D241/24 ,  C07D241/26

CPC分类号： C07D241/26 ,  A01N43/60 ,  A01N43/70 ,  A01N43/88 ,  A01N47/12 ,  A01N47/16 ,  C07D241/24

摘要： Novel 2,3-dicyanopyrazine derivatives of the formula ##STR1## wherein A represents a hydrogen atom, a lower alkyl group, an unsubstituted or substituted phenyl group, a benzyl group, or a group of the formula --ZR.sub.1 in which Z represents an oxygen or sulfur atom and R.sub.1 represents an unsubstituted or substituted lower alkyl group, a lower alkenyl group, a lower alkynyl group, an unsubstituted or substituted phenyl group, or an unsubstituted or substituted benzyl group; and B represents a halogen atom, an alkyl group containing at least 3 carbon atoms, a phenyl group having a substituent at the ortho- and/or meta-position of the benzene ring, a group of the formula ZR.sub.1 in which Z and R.sub.1 are as defined, or a group of the formula ##STR2## in which R.sub.2 and R.sub.3, independently from each other, represent a hydrogen atom, an unsubstituted or substituted lower alkyl group, a lower alkenyl group, a cycloalkyl group, an unsubstituted or substituted phenyl group, or an unsubstituted or substituted benzyl group, with the proviso that R.sub.2 and R.sub.3 do not represent a hydrogen atom at the same time, and R.sub.2 and R.sub.3 together may form a 3- to 7-membered heterocyclic ring together with the nitrogen atom to which they are bonded, said heterocyclic ring optionally containing an additional hetero atom; and processes for production thereof.These compounds have high herbicidal activity, and are useful as active ingredients of herbicides.

摘要翻译： 式IMA的新型2,3-二氰基吡嗪衍生物，其中A表示氢原子，低级烷基，未取代或取代的苯基，苄基或式-ZR1的基团，其中Z表示氧 或硫原子，R 1表示未取代或取代的低级烷基，低级烯基，低级炔基，未取代或取代的苯基，或未取代或取代的苄基; B表示卤素原子，含有3个以上碳原子的烷基，苯环的邻位和/或间位具有取代基的苯基，Z和R1分别为式ZR1的基团 或其中R2和R3彼此独立地表示氢原子，未取代或取代的低级烷基，低级烯基，环烷基，未取代或取代的苯基的式 基团或未取代或取代的苄基，条件是R 2和R 3不同时表示氢原子，并且R 2和R 3一起可以与氮原子一起形成3-至7-元杂环， 所述杂环任选地含有另外的杂原子; 及其生产方法。 这些化合物具有高除草活性，可用作除草剂的活性成分。