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23 条记录 (耗时 0.018 秒)

    VERFAHREN ZUR HERSTELLUNG VON OPTISCH AKTIVEN AMINEN
    1.
    发明授权
    VERFAHREN ZUR HERSTELLUNG VON OPTISCH AKTIVEN AMINEN 无效
    工艺生产光学活性胺

    公开(公告)号：EP0865500B1

    公开(公告)日：2002-02-13

    申请号：EP96939915.3

    申请日：1996-11-25

    申请人： BAYER AG

    发明人： STELZER, Uwe ,  DREISBACH, Claus

    IPC分类号： C12P41/00 ,  C07C235/06

    CPC分类号： C12P41/007 ,  C07C235/06

    摘要： The invention relates to a process for the preparation of optically active amines of the formula (I*), in which R and m have the meanings given in the description. In the present process the preparation of said amines is such that (a) in a first stage, racemic amines of the formula (I) are reacted, in the presence of lipases from Candida antarctica and optionally in the presence of a diluent, with esters of the formula (II), in which R , R , X and n have the meanings given in the description; (b) in a second stage the resulting mixture of (S)-amine of the formula (I-S) and acylated (R)-amine of the formula (III) is separated.

    VERFAHREN ZUR HERSTELLUNG VON RACEMISCHEN PHENETHYLAMINEN
    2.
    发明授权
    VERFAHREN ZUR HERSTELLUNG VON RACEMISCHEN PHENETHYLAMINEN 失效
    用于生产RACE混音苯乙胺

    公开(公告)号：EP0923534B1

    公开(公告)日：2000-10-04

    申请号：EP97932809.3

    申请日：1997-07-11

    申请人： BAYER AG

    发明人： STELZER, Uwe

    IPC分类号： C07C209/68 ,  C07B55/00

    CPC分类号： C07C209/00

    摘要： The invention concerns a novel process for preparing racemic phenethylamines of formula (I) in which R , R , R , R and R have the meanings given in the description. According to this process: a) in a first step, optically active phenethylamines of formula (I*) are reacted with acetophenone derivatives of formula (II), the optically active phenethylamine used and the acetophenone derivative used each being substituted in an identical manner in the phenyl part, optionally in the presence of a diluting agent and optionally in the presence of a catalyst; b) in a second step, the resultant optically active Schiff bases of formula (III*) are reacted with metallic hydroxides containing between 0.1 and 50 wt. % water; and c) in a third step, the resultant racemic Schiff bases are reacted with acids in the presence of water.

    SUBSTITUIERTE 2-AMINO-4-ALKYLAMINO-1,3,5-TRIAZINE ALS HERBIZIDE
    6.
    发明公开
    SUBSTITUIERTE 2-AMINO-4-ALKYLAMINO-1,3,5-TRIAZINE ALS HERBIZIDE 失效
    SUBSTITUIERTE 2-AMINO-4-ALKYLAMINO-1,3,5-三嗪ALSA HERBIDE

    公开(公告)号：EP0934284A1

    公开(公告)日：1999-08-11

    申请号：EP97910378.0

    申请日：1997-09-29

    申请人： BAYER AG

    发明人： RIEBEL, Hans-Jochem ,  LEHR, Stefan ,  STELZER, Uwe ,  WATANABE, Yukiyoshi ,  DOLLINGER, Markus

    IPC分类号： C07D251 ,  A01N43 ,  C07D401 ,  C07D403 ,  C07D409

    CPC分类号： C07D401/12 ,  A01N43/68 ,  A01N43/70 ,  C07D251/18 ,  C07D403/12 ,  C07D409/12

    摘要： The invention relates to novel substituted 2-amino-4-alkylamino-1,3,5-triazines of formula (I), in which R1 stands for respectively optionally substituted alkyl with 2 to 6 carbon atoms or cycloalkyl with 3 to 6 carbon atoms, R2 stands for hydrogen or alkyl with 1 to 4 carbon atoms, A for oxygen or methylene, Ar for respectively optionally substituted phenyl, naphthyl or heterocycyl, and Z for hydrogen, for halogen or for respectively optionally substituted alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylthio, alkylsulfinyl, alkylsulfonyl, alkenyl or alkinyl, methods and new intermediate products for their production and their use as herbicides.

    摘要翻译： 本发明涉及式（I）的新的取代的2-氨基-4-烷基氨基-1,3,5-三嗪，其中R 1分别表示任选取代的具有2至6个碳原子的烷基或具有3至6个碳原子的环烷基 R2代表氢或具有1至4个碳原子的烷基，A代表氧或亚甲基，Ar代表任选取代的苯基，萘基或杂环基，Z代表氢，卤素或分别任选取代的烷基，烷氧基，烷基羰基，烷氧基羰基 ，烷硫基，烷基亚磺酰基，烷基磺酰基，烯基或炔基，用于其生产的方法和新的中间产物以及它们作为除草剂的用途。