Cyclopentanol derivatives
    53.
    发明授权
    Cyclopentanol derivatives 失效
    环戊醇衍生物

    公开(公告)号:US4173707A

    公开(公告)日:1979-11-06

    申请号:US913689

    申请日:1978-06-08

    摘要: A cyclopentanol derivative represented by the formula ##STR1## wherein R.sub.1 and R.sub.2 are lower straight-chain or branched-chain alkyl, alkenyl or aralkyl, and R.sub.4 is 2-pentenyl or 2-pentynyl, and process for preparing the same.

    摘要翻译: 由下式表示的环戊醇衍生物,其中R 1和R 2为低级直链或支链烷基,烯基或芳烷基,R 4为2-戊烯基或2-戊炔基,及其制备方法。

    Process for preparing thiazolidine compounds
    55.
    发明授权
    Process for preparing thiazolidine compounds 失效
    制备噻唑烷化合物的方法

    公开(公告)号:US4482435A

    公开(公告)日:1984-11-13

    申请号:US406518

    申请日:1982-08-09

    IPC分类号: C07D513/04 C25B3/04 C25B3/00

    CPC分类号: C07D513/04 C25B3/04

    摘要: This invention provides a process for preparing a thiazolidine compound of the formula ##STR1## wherein R.sup.1 represents a hydrogen atom, alkyl group, aralkyl group, aryl group or aryloxymethyl group, and R.sup.2 represents a hydrogen atom or a group ##STR2## wherein R.sup.3 represents a hydrogen atom, alkyl group, halogenated alkyl group, benzyl group or silyl group, and X represents a hydrogen atom, halogen atom, hydroxy group, alkoxy group or acyloxy group, the process comprising electrolyzing a thiazoline compound represented by the formula ##STR3## wherein R.sup.1 and R.sup.2 are as defined above, in a mixture comprising a perchloric acid aqueous solution and an organic solvent.

    摘要翻译: 本发明提供了制备式(I)的噻唑烷化合物的方法,其中R 1表示氢原子,烷基,芳烷基,芳基或芳氧基甲基,R 2表示氢原子或基团 其中R3表示氢原子,烷基,卤代烷基,苄基或甲硅烷基,X表示氢原子,卤素原子,羟基,烷氧基或酰氧基,该方法包括电解由式 在其中R 1和R 2如上定义的含有高氯酸水溶液和有机溶剂的混合物中的图像(II)。

    Process for producing a tetraalkylthiuram disulfide
    56.
    发明授权
    Process for producing a tetraalkylthiuram disulfide 失效
    生产四烷基秋兰姆二硫化物的方法

    公开(公告)号:US4120764A

    公开(公告)日:1978-10-17

    申请号:US869409

    申请日:1978-01-16

    IPC分类号: C25B3/02 C07C155/10

    CPC分类号: C25B3/02

    摘要: A process for producing a tetraalkylthiuram disulfide which comprises electrolytically oxidizing a dialkylammonium dialkyldithiocarbamate having the formula ##STR1## wherein each R represents an alkyl group having from 1 to 4 carbon atoms, in the presence or absence of a supporting electrolyte to produce a tetraalkylthiuram disulfide, the electrolytic oxidation being carried out in one or more solvents which dissolve at least one of the starting dialkylammonium dialkyldithiocarbamate and the resulting tetraalkylthiuram disulfide.

    摘要翻译: 一种生产四烷基秋兰姆二硫化物的方法,其包括电解氧化具有式“IMAGE”的二烷基二烷基二硫代氨基甲酸二烷基铵,其中每个R表示具有1至4个碳原子的烷基,在存在或不存在支持电解质的情况下,产生四烷基秋兰姆二硫化物, 电解氧化在一种或多种溶剂中进行,所述溶剂溶解起始二烷基二烷基二硫代氨基甲酸烷基酯和所得的四烷基秋兰姆二硫化物中的至少一种。

    Cyclopentanone intermediates 2-(benzothiazolyl-2)
    58.
    发明授权
    Cyclopentanone intermediates 2-(benzothiazolyl-2) 失效
    环戊酮中间体2-(苯并噻唑基-2)

    公开(公告)号:US4238615A

    公开(公告)日:1980-12-09

    申请号:US884222

    申请日:1978-03-07

    CPC分类号: C07D277/74 C07C45/673

    摘要: 2-Substituted-cyclopentanone derivatives represented by the formula ##STR1## are prepared by subjecting a 2-benzothiazolylsulfenamide derivative represented by the formula ##STR2## and cyclopentanone to condensation reaction, or by reacting the resulting condensation product with a hydrocarbon halide represented by the formulaR.sub.1 X.

    摘要翻译: 由式“IMAGE”表示的2-取代的环戊酮衍生物是通过使由式< IMAGE>表示的2-苯并噻唑基亚磺酰胺衍生物和环戊酮进行缩合反应,或通过使所得缩合产物与由式 R1X。

    Process for preparation on 3-substituted cephem compound
    59.
    发明授权
    Process for preparation on 3-substituted cephem compound 失效
    3-取代头孢烯化合物的制备方法

    公开(公告)号:US5656755A

    公开(公告)日:1997-08-12

    申请号:US464853

    申请日:1995-07-06

    CPC分类号: C07D501/00 Y02P20/55

    摘要: An object of the invention is to provide a process for preparing a 3-substituted cephem compound from an allenyl-.beta.-lactam compound which can be easily produced from an inexpensive penicillin compound by a simple reaction procedure.The process of the invention comprises reacting an allenyl-.beta.-lactam compound with an organohalogen compound in the presence of a metal having a standard oxidation-reduction potential of -0.3 (V/SCE) or less in an amount at least equimolar with the allenyl-.beta.-lactam compound and 0.0001 to 0.5 mole, per mole of the allenyl-.beta.-lactam compound, of a metal compound having a higher standard oxidation-reduction potential than said metal.

    摘要翻译: PCT No.PCT / JP94 / 01859 Sec。 371日期:1995年7月6日 102(e)日期1995年7月6日PCT 1994年11月4日PCT PCT。 第WO95 / 13281号公报 日期1995年5月18日本发明的目的是提供一种由丙烯烯基-β-内酰胺化合物制备3-取代的头孢烯化合物的方法,其可以通过简单的反应方法由便宜的青霉素化合物制备。 本发明的方法包括在具有-0.3(V / SCE)或更小的标准氧化还原电位的金属的存在下,将烯丙基-β-内酰胺化合物与有机卤素化合物反应,其量与至少等摩尔的烯丙基 -β-内酰胺化合物和0.0001至0.5摩尔/摩尔的烯丙基-β-内酰胺化合物,具有比所述金属更高的标准氧化还原电位的金属化合物。