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14 条记录 (耗时 0.026 秒)

    Process for producing i-brassicasterol
    6.
    发明授权
    Process for producing i-brassicasterol 失效
    生产i-brassicasterol的方法

    公开(公告)号：US4614620A

    公开(公告)日：1986-09-30

    申请号：US702633

    申请日：1985-02-19

    申请人： Yutaka Konai ,  Shoichiro Hayashi ,  Yoshikazu Kubota ,  Kouichi Kodama

    发明人： Yutaka Konai ,  Shoichiro Hayashi ,  Yoshikazu Kubota ,  Kouichi Kodama

    IPC分类号： C07J53/00 ,  C07J9/00

    CPC分类号： C07J53/00

    摘要： Disclosed herein is a process for producing i-brassicasterol, comprising charging a mixture of i-sterols derived from a mixture of sterols including brassicasterol into a column packed with a filler obtained by chemically binding alkyl group(s) of 15 to 24 carbon atoms to silica, and subjecting said mixture of i-sterols to reversed-phase partition column-chromatography while using (i) an alcohol of one to three carbon atoms or a mixture therof, or (ii) a mixed solvent comprising more than 50% by volume of said alcohol(s) and a solvent other than said alcohol(s) as an eluent, thereby isolating and purifying i-brassicasterol.

    摘要翻译： 本文公开了一种生产i-brassicasterol的方法，包括将源自包括菜素菊醇的固醇的混合物的i-甾醇的混合物装入填充有通过化学结合15至24个碳原子的烷基获得的填料的柱， 二氧化硅，并使所述i-甾醇混合物进行反相分配柱色谱，同时使用（i）1至3个碳原子的醇或混合物，或（ii）包含大于50体积％的混合溶剂 的所述醇和除所述醇之外的溶剂作为洗脱剂，从而分离和纯化i-brassicasterol。

    Process for producing 2,6-naphthalenedicarboxylic acid
    8.
    发明授权
    Process for producing 2,6-naphthalenedicarboxylic acid 失效
    2,6-萘二甲酸的制备方法

    公开(公告)号：US4681978A

    公开(公告)日：1987-07-21

    申请号：US770249

    申请日：1985-08-28

    申请人： Takashi Yamauchi ,  Shoichiro Hayashi ,  Atsushi Sasakawa

    发明人： Takashi Yamauchi ,  Shoichiro Hayashi ,  Atsushi Sasakawa

    IPC分类号： C07C63/38 ,  B01J31/00 ,  C07B61/00 ,  C07C51/00 ,  C07C51/265 ,  C07C67/00

    CPC分类号： C07C51/265

    摘要： Disclosed herein is a process for producing 2,6-naphthalenedicarboxylic acid, comprising (1) oxidizing 2,6-diisopropylnaphthalene in a lower fatty acid as a solvent in the presence of a catalyst comprising a water-soluble cobalt salt and/or a water-soluble manganese salt in an amount of at least 0.5 gram-atom of Co and/or Mn to 1 mol of 2,6-diisopropylnaphthalene by an oxygen-containing gas, thereby obtaining isopropylnaphthalene-monocarboxylic acid and (2) further oxidizing the thus obtained 6-isopropyl-2-naphthoic acid in the lower fatty acid in the presence of the catalyst comprising a water-soluble cobalt salt and/or a water-soluble manganese salt in an amount of from 0.0025 to 0.12 gram-atom to 1 mol of 6-isopropyl-2-naphthoic acid by the oxygen-containing gas, thereby obtaining 2,6-naphthalenedicarboxylic acid.

    摘要翻译： 本文公开了2,6-萘二羧酸的制备方法，其包括（1）在含有水溶性钴盐和/或水的催化剂存在下，在低级脂肪酸中作为溶剂氧化2,6-二异丙基萘 通过含氧气体将至少0.5克原子的Co和/或Mn与1摩尔的2,6-二异丙基萘的可溶性锰盐混合，得到异丙基萘 - 一元羧酸，（2）进一步氧化 在包含水溶性钴盐和/或水溶性锰盐的催化剂存在下，在低级脂肪酸中得到6-异丙基-2-萘甲酸，其量为0.0025至0.12克原子至1摩尔 的6-异丙基-2-萘甲酸通过含氧气体反应，得到2,6-萘二甲酸。

    Process for separating isomers of azolylmethylcyclopentanol derivatives
    9.
    发明授权
    Process for separating isomers of azolylmethylcyclopentanol derivatives 失效
    分离唑基甲基环戊醇衍生物异构体的方法

    公开(公告)号：US5446167A

    公开(公告)日：1995-08-29

    申请号：US321093

    申请日：1994-10-11

    申请人： Shoichiro Hayashi ,  Kazuhiko Sunagawa ,  Satoru Kumazawa

    发明人： Shoichiro Hayashi ,  Kazuhiko Sunagawa ,  Satoru Kumazawa

    IPC分类号： A01N43/50 ,  A01N43/653 ,  C07B63/00 ,  C07D233/60 ,  C07D249/08 ,  C07D521/00

    CPC分类号： C07D231/12 ,  C07D233/56 ,  C07D249/08

    摘要： A process for separating a cis isomer from a mixture of the cis isomer and a trans isomer of an azolylmethylcyclopentanol derivative of the formula (I): ##STR1## wherein, R.sup.1 and R.sup.2 each independently represent a hydrogen atom or an alkyl group; each X represents a halogen atom, an alkyl group, a haloalkyl group, a phenyl group, a cyano group or a nitro group; n is an integer of from 0 to 5; A represents a nitrogen atom or a CH group; and each X may be identical or different when n is an integer of from 2 to 5, comprising the steps of dehydrating selectively the trans isomer in the presence of an acid and isolating the cis isomer.

    摘要翻译： 从式（I）的吡唑基甲基环戊醇衍生物的顺式异构体和反式异构体的混合物中分离顺式异构体的方法：其中，R 1和R 2各自独立地表示氢原子或烷基 ; 每个X表示卤素原子，烷基，卤代烷基，苯基，氰基或硝基; n为0〜5的整数， A表示氮原子或CH基团; 并且当n是2至5的整数时，每个X可以相同或不同，包括在酸的存在下选择性地脱水反式异构体并分离顺式异构体的步骤。