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    PRODUCTION OF AROMATIC KETONE
    82.
    发明专利
    PRODUCTION OF AROMATIC KETONE 失效

    公开(公告)号：JPH10120655A

    公开(公告)日：1998-05-12

    申请号：JP28063196

    申请日：1996-10-23

    申请人： DAISO CO LTD

    发明人： MURAI SHINJI ,  CHATANI NAOTO ,  KAKIUCHI FUMITOSHI ,  IE HIROTAKA

    IPC分类号： C07D239/26 ,  C07D213/16 ,  C07D401/06 ,  C07D405/04 ,  C07D409/04

    摘要： PROBLEM TO BE SOLVED: To efficiently obtain an aromatic ketone by reaction of a specific aromatic compound with carbon monoxide and an olefin compound in the presence of a transition metal catalyst to effect direct carbonylation of the carbon- hydrogen bond of the aromatic ring in a site-selective way. SOLUTION: This aromatic ketone of formula IV or formula V, which is useful for e.g. organic industrial products, medicines, is obtained by reaction of an aromatic compound of formula I [R is 2- or 4-pyrimidinyl; R and R are each H, an alkyl, an alkoxy, etc., or may be joined together to form an aromatic ring when they are adjacent to each other; however, H is bound to at least one carbon atom adjacent to the carbon atom bound to R (or R ' shown below)] or formula II [R ' is R (with a substituent on the ring) or 2- pyridyl (with a substituent on the ring); X is O, S, etc.] with carbon monoxide and an olefin compound of formula III (R is H or an alkyl) in the presence of a transition metal catalyst (e.g. a ruthenium compound).

    PRODUCTION OF TETRAZOLE COMPOUND
    87.
    发明专利
    PRODUCTION OF TETRAZOLE COMPOUND 失效

    公开(公告)号：JPH08277288A

    公开(公告)日：1996-10-22

    申请号：JP8114895

    申请日：1995-04-06

    申请人： SUMITOMO CHEMICAL CO

    发明人： USHIO HIDEKI ,  YASUNAGA KATSUICHI ,  SOGABE HIROSHI ,  KODERA TAKAHIRO

    IPC分类号： C07D213/16 ,  C07B63/00 ,  C07D311/24 ,  C07D405/04

    摘要： PURPOSE: To profitably produce a tetrazole compound by reacting a 2-cyano-4- oxo-4H-benzopyrane compound with an azide compound in an organic solvent, pouring the reaction product in water with stirring, and subsequently distilling off the organic solvent to deposit crystals having large particle diameters. CONSTITUTION: A method for producing a tetrazole compound comprises reacting a nitrile compound of formula I [R is H, a halogen, nitro, OH, a 1-20C alkyl, a 10-20C alkoxy, a group of formula: R CONH (R is phenyl which may be substituted), etc.] (e.g. 2-cyano-4-oxo-4H-benzopyrane) with an azide compound (e.g. sodium azide) in an organic solvent (e.g. N,N- dimethylformaldehyde) in the presence of a catalyst (e.g. ammonium chloride), pouring the reaction mixture containing the obtained tetrazole compound (salt) of formula II together with an organic solvent (e.g. toluene) immiscible with water with stirring, distilling off the organic solvent with stirring to deposite the crystals in water. Thus, the objective tetrazole compound of formula II is profitably obtained.

    PYRIDINE DERIVATIVE AND PRODUCTION THEREOF
    88.
    发明专利
    PYRIDINE DERIVATIVE AND PRODUCTION THEREOF 失效

    公开(公告)号：JPH07285937A

    公开(公告)日：1995-10-31

    申请号：JP11581394

    申请日：1994-04-19

    申请人： NIPPON PHARMA DEV INST ,  IWATA KAGAKU KOGYO

    发明人： SHIMIZU SHIGEO ,  SHIMIZU SHINICHIRO ,  TAKANO HIROYUKI

    IPC分类号： C07D213/16 ,  C07D213/26 ,  C07D213/30 ,  C07D213/38 ,  C07D213/57

    摘要： PURPOSE:To obtain a new compound which is useful as an organic electroluminescence element, an electric charge transfer substance, an electrophotographic photoreceptor. CONSTITUTION:A compound of formula I (R is a benzene or naphthalene ring which may be substituted with substituents, for example, alkyl, alkoxy, halogen, cyano, dialkylamino, diarylamino or the like), for example, 2,4,6-tris(p- chlorostyryl)pyridine. A compound of formula I is obtained by reaction of 2,4,6- trimethylpyridine of formula II with an aldehyde of the formula: R-CHO in the presence of an organic carboxylic anhydride such as butyric acid anhydride, preferably in a nitrogen atmosphere at a temperature lower than the boiling point of the anhydride.

    89.
    发明专利
    失效

    公开(公告)号：JPH072713B2

    公开(公告)日：1995-01-18

    申请号：JP9173885

    申请日：1985-04-26

    IPC分类号： C07D213/16