Process for the preparation of certain enantiomeric pairs of
.alpha.-cyano-3-phenoxy-4-fluoro-benzyl permethrate
    51.
    发明授权
    Process for the preparation of certain enantiomeric pairs of .alpha.-cyano-3-phenoxy-4-fluoro-benzyl permethrate 失效
    制备α-氰基-3-苯氧基-4-氟 - 苄基苄酯的某些对映异构体对的方法

    公开(公告)号:US4544508A

    公开(公告)日:1985-10-01

    申请号:US689759

    申请日:1985-01-09

    CPC分类号: A01N53/00 C07C255/53

    摘要: A process for the preparation of the enantiomeric pairs (1R-3R-.alpha.S+1S-3S-.alpha.R) and (1R-3S-.alpha.S+1S-3R-.alpha.R) from a mixture of all 8 stereoisomers of the compound .alpha.R/S-cyano-3-phenoxy-4-fluorobenzyl 3R/S-(2,2-dichlorovinyl)-2,2-dimethyl-1R/S-cyclopropanecarboxylate, comprising dissolving the mixture in a secondary or tertiary alkylamine having 2-6 C atoms per alkyl radical, subjecting the solution to crystallization whereby the enantiomeric pairs (1R-3R-.alpha.S+1S-3S-.alpha.R) and (1R-3S-.alpha.S+1S-3R-.alpha.R) crystallize out from the solution, and separating the crystallized material. The crystals are enriched in the most active components.

    摘要翻译: 从化合物的所有8种立体异构体的混合物制备对映体对(1R-3R-αS+ 1S-3S-αR)和(1R-3S-αS+ 1S-3R-αR)的方法 α-R / S-氰基-3-苯氧基-4-氟苄基3R / S-(2,2-二氯乙烯基)-2,2-二甲基-1R / S-环丙烷羧酸酯,包括将该混合物溶解在二 -6 C原子,使溶液结晶,由此将对映异构体对(1R-3R-αS+ 1S-3S-αR)和(1R-3S-αS+ 1S-3R-αR)结晶出来 从溶液中分离出结晶物质。 晶体富含最活跃的成分。

    Bearing arrangement for a shaft supporting a rotating tool
    52.
    发明授权
    Bearing arrangement for a shaft supporting a rotating tool 失效
    用于支撑旋转工具的轴的轴承布置

    公开(公告)号:US06450693B1

    公开(公告)日:2002-09-17

    申请号:US09707525

    申请日:2000-11-07

    IPC分类号: F16C4304

    CPC分类号: B21B31/07 B21B27/03 B21B31/08

    摘要: A bearing arrangement for a shaft supporting a rotating tool is provided, with the shaft being rotatable on both sides of the tool at least indirectly in roller bearings, one of which can be removed for purposes of tool replacement together with an associated bearing sleeve slidable onto the free shaft end. The seating of the bearing sleeve, which is borne at least indirectly by the shaft, is formed by a conical outer surface tapering toward the shaft end. The bearing sleeve exhibit a conical borehole corresponding to the conical outer surface, and the bearing sleeve is radially expanded via a stop-limited axial shifting with respect to the conical outer surface by an amount to produce a specific level of reduced roller-bearing play.

    摘要翻译: 提供了一种用于支撑旋转工具的轴的轴承装置,其中轴可以至少间接地在滚子轴承中在工具的两侧旋转,其中的一个可以与用于刀具更换的目的一起移除,以及可滑动到 自由轴端。 至少由轴间接承载的轴承套的座位由朝向轴端逐渐变细的锥形外表面形成。 轴承套筒具有对应于锥形外表面的锥形钻孔,并且轴承套筒通过相对于锥形外表面的止动限制的轴向移动径向膨胀一定量,以产生特定水平的减小的滚子轴承游隙。

    Substituted pyrazolines
    55.
    发明授权
    Substituted pyrazolines 失效
    取代的吡唑啉

    公开(公告)号:US5525622A

    公开(公告)日:1996-06-11

    申请号:US28490

    申请日:1993-03-09

    摘要: There are provided new substituted pyrazolines of the general formula (I) ##STR1## in which R.sup.1 represents optionally substituted phenyl and eitherR.sup.2 represents a radical of the formula --CO--R.sup.7, --COOR.sup.7 or --SO.sub.2 --R.sup.7,where R.sup.7 has the meaning given in the text of the application, andR.sup.3 represents hydrogen, alkyl or halogenoalkyl orR.sup.2 and R.sup.3 together with the nitrogen atom to which they are bonded represent a heterocycleR.sup.4 represents hydrogen, alkyl, halogenoalkyl, halogenoalkylthio, halogen, alkoxycarbonyl or in each case optionally substituted cycloalkyl or aryl,R.sup.5 represents hydrogen or alkyl,R.sup.6 represents in each case optionally substituted alkyl, cycloalkyl or 3,4-disubstituted phenyl andX represents oxygen or sulphur.The new substituted pyrazolines have a highly pronounced activity against animal pests, in particular against insects.

    摘要翻译: 提供了通式(I)的新的取代吡唑啉,其中R 1表示任意取代的苯基,R 2表示式-CO-R 7,-COOR 7或-SO 2 -R 7的基团,其中R 7 具有本申请文本中给出的含义,并且R 3表示氢,烷基或卤代烷基或R 2和R 3与它们所连接的氮原子一起代表杂环R 4表示氢,烷基,卤代烷基,卤代烷硫基,卤素,烷氧羰基或 在每种情况下,任选取代的环烷基或芳基,R 5表示氢或烷基,R 6表示在各种情况下任选取代的烷基,环烷基或3,4-二取代的苯基,X表示氧或硫。 新的取代的吡唑啉对动物害虫具有非常明显的活性,特别是针对昆虫。

    Process for the preparation of certain pairs of enantiomers of
.alpha.-cyano-3-phenoxy-4-fluorobenzyl permethrate
    56.
    发明授权
    Process for the preparation of certain pairs of enantiomers of .alpha.-cyano-3-phenoxy-4-fluorobenzyl permethrate 失效
    制备α-氰基-3-苯氧基-4-氟苄基乙酸酯的某些对映异构体的方法

    公开(公告)号:US4782174A

    公开(公告)日:1988-11-01

    申请号:US874989

    申请日:1986-06-16

    CPC分类号: C07C255/53

    摘要: A process for the preparation of a mixture principally comprising the(b) 1R-3R-.alpha.S+1S-3S-.alpha. and(d) 1R-3S-.alpha.S+1S-3R-.alpha.Renantiomers of the compound .alpha.-cyano-3-phenoxy-4-fluorobenzyl permethrate, comprising dissolving a mixture of all 8 stereoisomers of the compound .alpha.-cyano-3-phenoxy-4-fluorobenzyl permethrate in an alcohol having 2 to 4 carbon atoms, adding a secondary or tertiary alkyl amine having 2-6 carbon atoms in each alkyl moiety and allowing the mass to crystallize, whereby the desired mixture of enantiomers b) and d) crystallizes out of the solution.

    摘要翻译: 制备主要包含(b)化合物α-氰基的(b)1R-3R-α-S + 1S-3S-α和(d)1R-3S-αS+ 1S-3R-αR对映异构体的混合物的方法 -3-苯氧基-4-氟苄基氟代乙酸酯,其包括将化合物α-氰基-3-苯氧基-4-氟苄基乙酸酯的所有8种立体异构体的混合物溶解在具有2至4个碳原子的醇中,加入仲或叔烷基胺 在每个烷基部分中具有2-6个碳原子并允许物质结晶,由此所需的对映体混合物b)和d)从溶液中结晶出来。

    Method of combating phytopathogenic microorganisms in the water circuits
of greenhouses
    59.
    发明授权
    Method of combating phytopathogenic microorganisms in the water circuits of greenhouses 有权
    防治温室水循环中植物病原微生物的方法

    公开(公告)号:US6096226A

    公开(公告)日:2000-08-01

    申请号:US274907

    申请日:1999-03-23

    摘要: The phytotoxic action of too high a concentration of peroxygen compounds such as peroxycarboxylic acids and hydrogen peroxide in the combating of phytopathogenic microorganisms, such as fusaria, in the water systems of plant irrigation systems, especially greenhouses, can be eliminated. The water is treated with a peroxycarboxylic acid solution which is brought in contact with a solid decomposition catalyst for active-oxygen compounds before the water is used for irrigation, in order to reduce the content of peroxycarboxylic acid and hydrogen peroxide. The water contacts and flows through a fixed bed of decomposition catalyst, by trickling over it or flowing through the conduits of a monolithic block coated with a decomposition catalyst such as platinum, palladium or rhodium.

    摘要翻译: 可以消除在植物灌溉系统,特别是温室的水系中,过氧化合物如过氧羧酸和过氧化氢的过高浓度对抗植物病原微生物(例如fusaria)的植物毒性作用。 用过氧羧酸溶液处理水,该过氧羧酸溶液在用水冲洗之前与活性氧化合物的固体分解催化剂接触,以减少过氧羧酸和过氧化氢的含量。 水接触并流过分解催化剂的固定床,通过滴落或流过涂覆有分解催化剂如铂,钯或铑的整体块的管道。