Process for preparing 3.3-dimethylbutyric acid
    31.
    发明授权
    Process for preparing 3.3-dimethylbutyric acid 失效
    制备3.3-二甲基丁酸的方法

    公开(公告)号:US5907060A

    公开(公告)日:1999-05-25

    申请号:US90747

    申请日:1998-06-04

    申请人: Uwe Stelzer

    发明人: Uwe Stelzer

    CPC分类号: C07C51/377

    摘要: The present invention relates to a novel process for preparing 3,3-dimethylbutyric acid by reaction of trimethylpyruvic acid with hydrazine hydrate and treatment of the resulting hydrazone with a base.

    摘要翻译: 本发明涉及一种通过三甲基丙酮酸与水合肼反应制备3,3-二甲基丁酸的新方法,并用碱处理得到的腙。

    Process for the preparation of optically active 1-aryl-alkylamines
    32.
    发明授权
    Process for the preparation of optically active 1-aryl-alkylamines 失效
    光学活性1-芳基 - 烷基胺的制备方法

    公开(公告)号:US5773656A

    公开(公告)日:1998-06-30

    申请号:US694893

    申请日:1996-08-09

    申请人: Uwe Stelzer

    发明人: Uwe Stelzer

    摘要: Known (R)-1-aryl-alkylamines of the formula ##STR1## in which R.sup.1 and Ar have the meanings indicated in the description, are prepared by a new process, which comprises a) reacting a racemate of an ethyl or methyl 2-aryl-alkanoate of the formula ##STR2## with ammonia in the presence of a lipase which is suitable for the cleavage of esters, in the presence of a diluent, b) separating off from the reaction mixture the resulting (R)-2-aryl-alkanamide of the formula ##STR3## and then reacting it with sodium hypochlorite or sodium hypobromite in the presence of water.

    摘要翻译: 其中R 1和Ar具有说明书中所示含义的式(I)的已知(R)-1-芳基 - 烷基胺通过新方法制备,其包括:a)使乙基的外消旋物或 在适合于酯裂解的脂肪酶存在下,在存在稀释剂的情况下,将式(II)的2-芳基 - 链烷酸甲酯与氨反应,b)从反应混合物中分离所得的( R)-2-芳基 - 链烷酰胺,然后使其与次氯酸钠或次溴酸钠在水存在下反应。

    Substituted 2,4-diamino-1,3,5-triazine and their use as herbicides
    35.
    发明授权
    Substituted 2,4-diamino-1,3,5-triazine and their use as herbicides 失效
    取代的2,4-二氨基-1,3,5-三嗪及其作为除草剂的用途

    公开(公告)号:US06348435B1

    公开(公告)日:2002-02-19

    申请号:US09508383

    申请日:2000-05-01

    IPC分类号: C07D25118

    摘要: The invention relates to novel substituted 2,4-diamino-1,3,5-triazines of the formula (I) in which R1 represents, for exampe, H or C1-C6-alkyl, R2 represents, for example, H, C1-C6-alkyl or —CO—R6, R3 represents, for example, H, C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkinyl or C3-C6-cycloalkyl, R4 represents, for example, H, C1-C6-alkyl or C3-C6-cycloalkyl, R5 represents one of the groupings below, where R6 represents, for example, C1-C6-alkyl, C1-C6-alkoxy or C2-C6-alkenyl, R7 to R12 represents, for example, H or certain organic radicals and Q represents O or S, to processes and novel intermediates for their preparation and to their use as herbicides.

    摘要翻译: 本发明涉及式(I)的新型取代的2,4-二氨基-1,3,5-三嗪,其中R 1表示例如H或C 1 -C 6烷基,R 2表示例如H,C 1 -C 6烷基, C6烷基或-CO-R6,R3表示例如H,C1-C6-烷基,C2-C6-烯基,C2-C6-炔基或C3-C6-环烷基,R4表示例如H,C1 C 1-6 - 烷基或C 3 -C 6 - 环烷基,R 5表示以下基团之一,其中R 6表示例如C 1 -C 6 - 烷基,C 1 -C 6 - 烷氧基或C 2 -C 6 - 链烯基,R 7至R 12表示 例如,H或某些有机基团,Q表示O或S,用于其制备和用作除草剂的新型中间体。

    Substituted 2-amino-4-alkylamino-1,3,5-triazines as herbicides
    36.
    发明授权
    Substituted 2-amino-4-alkylamino-1,3,5-triazines as herbicides 失效
    取代的2-氨基-4-烷基氨基-1,3,5-三嗪作为除草剂

    公开(公告)号:US06346503B1

    公开(公告)日:2002-02-12

    申请号:US09284053

    申请日:1999-04-06

    IPC分类号: A01N4368

    摘要: The invention relates to novel substituted 2-amino-4-alkylamino-1,3,5-triazines of the formula (I) in which R1 represents in each case optionally substituted alkyl having 2 to 6 carbon atoms or cycloalkyl having 3 to 6 carbon atoms, R2 represents hydrogen or represents alkyl having 1 to 4 carbon atoms, A represents oxygen or methylene, Ar represents in each case optionally substituted phenyl, naphthyl or heterocyclyl, and Z represents hydrogen, represents halogen or represents in each case optionally substituted alkyl, alkoxy, alkylcarboxyl, alkoxycarbonyl, alkylthio, alkylsulphinyl, alkylsulphonyl, alkenyl or alkinyl, to processes and to novel intermediates for their preparation and to 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表示在各种情况下是任选取代的具有2至6个碳原子的烷基或具有3至6个碳原子的环烷基 ,R 2表示氢或表示具有1至4个碳原子的烷基,A表示氧或亚甲基,Ar表示各自为任意取代的苯基,萘基或杂环基,Z表示氢,表示卤素或表示任意取代的烷基,烷氧基, 烷基羧基,烷氧基羰基,烷硫基,烷基亚磺酰基,烷基磺酰基,烯基或炔基,以制备和用于制备新的中间体及其作为除草剂的用途。

    Process for preparing racemic phenethylamines
    37.
    发明授权
    Process for preparing racemic phenethylamines 失效
    制备外消旋苯乙胺的方法

    公开(公告)号:US6046351A

    公开(公告)日:2000-04-04

    申请号:US230232

    申请日:1999-01-19

    申请人: Uwe Stelzer

    发明人: Uwe Stelzer

    CPC分类号: C07C209/00

    摘要: The invention concerns a novel process for preparing racemic phenethylamines of formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 have the meanings given in the description. According to this process: a) in a first step, optically active phenethylamines of formula (I*) ##STR2## are reacted with acetophenone derivatives of formula (II), ##STR3## 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*) ##STR4## 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.

    摘要翻译: PCT No.PCT / EP97 / 03691 Sec。 371日期1999年1月19日 102(e)1999年1月19日PCT PCT 1997年7月11日PCT公布。 第WO98 / 03465号公报 日本1998年1月29日本发明涉及一种制备式(I)的外消旋苯乙胺的新方法,其中R1,R2,R3,R4和R5具有说明书中给出的含义。 根据该方法:a)在第一步中,使式(I *)的光学活性苯乙胺与式(II)的苯乙酮衍生物,所用的光学活性苯乙胺和各自以相同方式取代的苯乙酮衍生物 苯基部分,任选地在稀释剂存在下和任选地在催化剂存在下进行; b)在第二步中,将所得的式(III *)的光学活性席夫碱与含有0.1-50wt。 % 水; 和c)在第三步中,所得的外消旋席夫碱在水的存在下与酸反应。

    Process for preparing optically active amines
    38.
    发明授权
    Process for preparing optically active amines 失效
    制备光学活性胺的方法

    公开(公告)号:US5885787A

    公开(公告)日:1999-03-23

    申请号:US894668

    申请日:1997-08-25

    摘要: In accordance with a novel process, (R)-amines of the formula ##STR1## in which R.sup.1, R.sup.2 and n have the meanings given in the description, can be prepared by reacting reating N-acyl-amines of the formula ##STR2## in which R.sup.1, R.sup.2, R.sup.3 and n have the meanings given in the description,with lipases which are suitable for cleaving the (R)-enantiomers of N-acyl-amines of the formula (II), in the presence of water and optionally in the presence of an organic diluent, at a pH of between 3.0 and 10.0 and at temperatures of between 0.degree. C. and 80.degree. C.

    摘要翻译: PCT No.PCT / EP96 / 00835 Sec。 371日期1997年8月25日第 102(e)日期1997年8月25日PCT 1996年3月1日PCT公布。 出版物WO96 / 27022 PCT 日期1996年9月6日根据新方法,式(Ⅰ)中R 1,R 2和n具有本说明书中给出的含义的式(Ⅺ)的(R) - 胺可通过使N-酰基 - 其中R 1,R 2,R 3和n具有本说明书中给出的含义的式(II)的胺与适用于裂解式(I)的N-酰基 - 胺的(R) - 对映异构体的脂肪酶 (II),在水的存在下和任选地在有机稀释剂的存在下,在3.0至10.0的pH和0℃至80℃的温度下进行。