公开(公告)号：US06433231B1

公开(公告)日：2002-08-13

申请号：US09886805

申请日：2001-06-21

申请人： Seiichi Teshima ,  Masayoshi Konishi ,  Kozo Tajiri ,  Yoshinobu Asako ,  Sadao Miki

发明人： Seiichi Teshima ,  Masayoshi Konishi ,  Kozo Tajiri ,  Yoshinobu Asako ,  Sadao Miki

IPC分类号： C07C4700

摘要： A method for producing inexpensively in a high yield a halogen-containing aromatic compound, particularly a halogen-containing aromatic compound incorporating therein a bromodifluoroalkyl group, and a halogen-containing naphthalene compound useful as a raw material for a resin excelling in heat resistance, chemical resistance and water repellency, and having a low dielectric constant and a low refractivity are provided. This invention relates to a method for the production of an aromatic compound (II) having a (CH2)nCX2Br group (wherein X represents a fluorine or chlorine atom and the X's may be same or different, and n is an integer in the range of 0 to 4) by the reaction of photo-bromination of an aromatic compound (I) having a (CH2)nCX2H group (wherein X and n are as defined above) with a brominating agent, wherein the photo-bromination reaction is carried out while removing hydrogen bromide generated in the reaction system and/or in an atmosphere of a low oxygen content, and a halogen-containing naphthalene compound represented by the following formula (1): wherein Y represents —CF2H, —CF2Br, or —CHO group, Z1 and Z2 independently represent a halogen atom, and p and q independently are an integer in the range of 0 to 3.

公开(公告)号：US06288290B1

公开(公告)日：2001-09-11

申请号：US09420860

申请日：1999-10-19

申请人： Seiichi Teshima ,  Masayoshi Konishi ,  Kozo Tajiri ,  Yoshinobu Asako ,  Sadao Miki

发明人： Seiichi Teshima ,  Masayoshi Konishi ,  Kozo Tajiri ,  Yoshinobu Asako ,  Sadao Miki

IPC分类号： C07C1908

CPC分类号： C07C47/55 ,  C07B39/00 ,  C07C17/14 ,  C07C17/18 ,  C07C22/08 ,  C07C25/22 ,  C07C45/41 ,  C07C45/63 ,  C07C22/04 ,  C07C47/546

摘要： This invention relates to a method for the production of an aromatic compound (II) having a (CH2)nCX2Br group (wherein X represents a fluorine or chlorine atom and the X's may be same or different, and n is an integer in the range of 0 to 4) by the reaction of photo-bromination of an aromatic compound (I) having a (CH2)nCX2H group (wherein X and n are as defined above) with a brominating agent, wherein the photo-bromination reaction is carried out while removing hydrogen bromide generated in the reaction system and/or in an atmosphere of a low oxygen content, and a halogen-containing naphthalene compound represented by the following formula (1): wherein Y represents —CF2H, —CF2Br, or —CHO group, Z1 and Z2 independently represent a halogen atom, and p and q independently are an integer in the range of 0 to 3.

摘要翻译： 本发明涉及一种具有（CH2）nCX2Br基团的芳族化合物（II）的制备方法（其中X表示氟或氯原子，X可以相同或不同，n是在 通过使具有（CH 2）n C X 2 H基团（其中X和n如上定义的）的芳族化合物（I）与溴化剂进行光溴化反应，其中光溴化反应进行同时 除去在反应体系中和/或低氧气氛中产生的溴化氢和由下式（1）表示的含卤素的萘化合物：其中Y表示-CF 2 H，-CF 2 Br或-CHO基， Z 1和Z 2独立地表示卤原子，p和q独立地为0〜3的整数。

公开(公告)号：US06384289B1

公开(公告)日：2002-05-07

申请号：US09758607

申请日：2001-01-11

申请人： Seiichi Teshima ,  Yoshinobu Asako

发明人： Seiichi Teshima ,  Yoshinobu Asako

IPC分类号： C07C2208

摘要： A process is provided which allows a 1,4-bis(difluoroalkyl)benzene derivative to be produced inexpensively by a simple procedure without requiring any special facility. This process comprises causing a compound (A) of the following formula (1): wherein X1, X2, X3, and X4 independently stand for an oxygen or sulfur atom, Y1 and Y2 independently stand for a group of the formula: —CnH2n—, in which n is 2 or 3, k is an integer in the range of 0 to 4, G stands for a halogen group, an alkyl group, a perfluoroalkyl group, or an alkoxy group, and m is an integer in the range of 0 to 4, to react with a fluorine-containing species, the molar ratio of the fluorine-containing species to compound (A) being in the range of 20-40. The process is carried out in the presence of a bromine-containing compound, which is in an amount of 2 to 3 equivalences to the amount of compound (A), in an organic solvent at −80° C. to 30° C., the final concentration of compound (A) being in the range of 3 to 30% by weight.

公开(公告)号：US6043397A

公开(公告)日：2000-03-28

申请号：US139422

申请日：1998-08-25

申请人： Seiichi Teshima ,  Yoshinobu Asako

发明人： Seiichi Teshima ,  Yoshinobu Asako

IPC分类号： C07B39/00 ,  C07C17/18 ,  C07C45/41 ,  C07C45/63 ,  C07C19/08 ,  C07C25/13 ,  C07C47/52 ,  C07C47/546

CPC分类号： C07C45/41 ,  C07B39/00 ,  C07C17/18 ,  C07C45/63

摘要： A method for the production of a fluorine-containing aromatic compound is provided which allows the relevant reaction to proceed in a standard reaction vessel such as, for example, a glass vessel at room temperature under an ambient pressure without requiring provision of such special devices as have been necessary heretofore or adoption of harsh reaction conditions. This method comprises causing an aromatic compound (A) having a cyclic skeletal part of 6 to 16 carbon atoms containing a plurality of --C(.dbd.O)X groups, wherein X stands for a hydrogen atom, a halogen atom, or an alkyl group of 1 to 10 carbon atoms, and having the remaining hydrogen atoms unsubstituted or partly or wholly substituted with at least one species of halogen atom to react with a compound (B) represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 independently stand for an alkyl group of 1 to 6 carbon atoms or a phenyl group.

摘要翻译： 提供了一种制备含氟芳族化合物的方法，其允许相关反应在标准反应容器例如玻璃容器中在室温下在环境压力下进行，而不需要提供如 迄今为止还是采用了苛刻的反应条件。 该方法包括使具有6〜16个碳原子的环状骨架部分的芳香族化合物（A）含有多个-C（= O）X基团，其中X表示氢原子，卤素原子或烷基 具有1至10个碳原子，并且其余的氢原子未被取代或部分或全部被至少一种卤素原子取代，以与由下式表示的化合物（B）反应：其中R1和R2独立地表示烷基 1至6个碳原子或苯基。

公开(公告)号：US5993701A

公开(公告)日：1999-11-30

申请号：US979280

申请日：1997-11-26

申请人： Masanori Ando ,  Toru Sakaguchi ,  Tetsuhiko Kobayashi ,  Seiichi Teshima ,  Yoshinobu Asako

发明人： Masanori Ando ,  Toru Sakaguchi ,  Tetsuhiko Kobayashi ,  Seiichi Teshima ,  Yoshinobu Asako

IPC分类号： G02F1/361 ,  F21V9/00 ,  G02F1/35

CPC分类号： G02F1/3615

摘要： A third-order nonlinear optical material having a metal oxide contained in a transparent polymer.

摘要翻译： 在透明聚合物中含有金属氧化物的三阶非线性光学材料。