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27 条记录 (耗时 0.011 秒)

    Process for producing polythiobisphenols and process for producing mercaptophenols by the hydrogenolysis of the same
    1.
    发明公开
    Process for producing polythiobisphenols and process for producing mercaptophenols by the hydrogenolysis of the same 失效
    生产聚苯乙烯的方法和通过其氢化方法生产辛烯酚的方法

    公开(公告)号：EP0200212A3

    公开(公告)日：1988-08-24

    申请号：EP86105924

    申请日：1986-04-29

    申请人： SEITETSU KAGAKU CO., LTD.

    发明人： Onoe, Akira ,  Kawamura, Masao ,  Nishi, Tadaaki ,  Kobayashi, Kenzo ,  Yoshikawa, Masato

    IPC分类号： C07C149/36

    CPC分类号： C07C323/00 ,  C07C319/06 ,  C07C323/20

    摘要： A process for producing polythiobisphenols which comprises: reacting a phenol having the general formula
    or
    wherein each R independently represents a hydrogen, a halogen or an alkyl, with sulfur monochloride in a polar organic solvent in the presence of a nitrogen-containing organic compound as a catalyst which is selected from the group consisting of tertiary amines, quaternary ammonium, alkylated acid amides and heteroaromatic compounds, in amounts of about 1-30 % by weight based on the amount of the phenol used. As a catalyst, bromine or an alkali metal halide is also usable. A novel process for producing mercaptophenols by the hydrogenolysis of polythiobisphenols in the presence of a nickel catalyst is also disclosed. Raney nickel catalyst which is in advance poisoned with an organosulfur compound in which the sulfur atom has unshared electron pairs is especially effective as a catalyst.

    4-Tert.-butyl-1,2-benzenedithiol, complex compounds derived therefrom, and a method of producing the same
    2.
    发明公开
    4-Tert.-butyl-1,2-benzenedithiol, complex compounds derived therefrom, and a method of producing the same 失效
    4-叔丁基-1,2-苯二硫酚，从它和它们的制备方法导出的复化合物。

    公开(公告)号：EP0278257A1

    公开(公告)日：1988-08-17

    申请号：EP88100619.1

    申请日：1988-01-18

    申请人： SEITETSU KAGAKU CO., LTD.

    发明人： Suzuki, Michio ,  Kawamura, Masao ,  Kato, Kunioki ,  Takahashi, Masahide ,  Morishita, Tsuyoshi ,  Nakayama, Kazuyuki ,  Nakatsuka, Akio

    IPC分类号： C07C321/26

    CPC分类号： C07C323/00 ,  C07F1/005 ,  C07F15/0093 ,  C07F15/045 ,  C07F15/065

    摘要： Novel compounds, 4-tert.-butyl-1,2-benzenedithiol and bis(4-tert.-butyl-1,2-dithiophenolate)metal complexes having the general formula of
    wherein M represents a trivalent transition metal, and A represents a quarternary ammonium are provided.
    The novel benzenedithiol is produced by reacting 4-­tert.-butylbenzenethiol or di(4-tert.-butylphenyl)disulfide with sulfur monochloride in the presence of iodine or a Lewis acid in a solvent, and then reducing the resultant product with a metal selected from the group consisting of zinc, tin, iron and aluminum in the presence of an acid.
    The novel Cu, Co and Ni complexes are produced by reacting the benzenedithiol with a salt of the corresponding divalent transition metal in the presence of an alkoxide metal or a hydride metal and a quarternary ammonium salt in a solvent under an oxidative atmosphere.
    The complexes strongly absorb rays in the region of ultraviolet, visible or near infrared, and are useful intermediates for the production of optical information recording media.

    摘要翻译： 新型化合物，4-叔丁基-1,2-苯二硫酚和双（4-叔丁基-1,2- dithiophenolate），其具有通式的金属配合物worin中号darstellt三价过渡金属，和 提供季铵甲darstellt。 新颖的苯二硫酚是通过使4-叔丁基苯硫醇或二（4-叔丁基 - 苯基）二硫化物与在碘的存在下或在溶剂中的路易斯酸，氯化硫，然后还原所得到的产物与所选择的金属制成 选自在酸的存在下用锌，锡，铁和铝组成的聚合物。 新颖的Cu，Co和Ni络合物通过与二价过渡金属中的醇盐的金属氢化物或金属和季铵盐在溶剂中的氧化性气氛下的存在CORRESPONDING的盐反应的苯二硫酚制备。 复合物强烈吸收在紫外，可见或近红外的区域中的光线，并且是用于生产光学信息记录介质的有用的中间体。

    Novel thiophene derivatives and methods for producing the same
    5.
    发明公开
    Novel thiophene derivatives and methods for producing the same 失效
    新型噻吩衍生物及其生产方法

    公开(公告)号：EP0245835A3

    公开(公告)日：1989-05-31

    申请号：EP87106857.3

    申请日：1987-05-12

    申请人： SEITETSU KAGAKU CO., LTD.

    发明人： Goda, Hiroshi ,  Kawamura, Masao ,  Kato, Kunioki ,  Sato, Makoto

    IPC分类号： C07D333/22 ,  C07D333/38 ,  C07D333/40 ,  C07D333/44 ,  C07D333/28

    CPC分类号： C07D333/44 ,  C07D333/22 ,  C07D333/28 ,  C07D333/34 ,  C07D333/38

    摘要： Novel compounds, 2-(α-alkoxyimino) ethylthiophenes are susceptible to electrophilic substitution reactions, and the acetylation, nitration, sulfonation and halogenation of the compounds provide 5-acetyl-2-(a-alkoxyimino)-ethylthiophenes, 5-nitro-2-(a-alkoxyimino)ethylthiophenes, 5-(a-alkoxyiminolethyl-2-thiophenesulfonic acid and 5-halo-2-(a-alkoxyimino)ethylthiophenes, respectively. The hydrolysis of 5-acetyl-2-(a-alkoxyimino)-ethylthiophenes readily provides a known compound, 2,5- diacetylthiophene which is an important intermediate for the production of medicines, whereas the haloform reaction provides novel compounds, 5-(a-alkoxyimino)ethyl-2-thiophenecarboxylic acids, the hydrolysis of which compounds readily provides a known compound, 5-acetyl-2-thiophenecarboxylic acids, an important intermediate for the production of medicines. The hydrolysis of 5-(a-alkoxyimino)ethyl-2-thiophene- sulfonic acids and their salts provide novel 5-acetyl-2-thiophenesulfonic acid and its salts, respectively. Novel compounds, 2-(a-alkoxyimino)ethylthiophenes are obtained either by 0-alkylation of 2-acetylthiophene oxime or by directly reacting 2-acetylthiophene with an 0-alkylhydroxylamine.

    A process for preparing uridine diphosphate-N-acetylgalactosamine
    8.
    发明公开
    A process for preparing uridine diphosphate-N-acetylgalactosamine 失效
    Verfahren zur Herstellung von Uridindiphosphat-N-乙酰半乳糖胺。

    公开(公告)号：EP0220750A2

    公开(公告)日：1987-05-06

    申请号：EP86116537.1

    申请日：1983-06-02

    申请人： SEITETSU KAGAKU CO., LTD.

    发明人： Seno, Taiko ,  Okubo, Yasuto ,  Kawamura, Masao ,  Akutsu, Seiichi ,  Fukuda, Hirosuke

    IPC分类号： C12P19/30

    CPC分类号： C07H19/06 ,  C12N9/90 ,  C12P19/305 ,  C12Q1/48 ,  G01N33/80 ,  Y10S435/839

    摘要： There is disclosed a process for the preparation of uridine diphosphate-N-acetylgalactosamine comprising treating a reaction solution in which the uridine diphosphate-N-acetylglucosamine has been enzymatically converted to uridine diphosphate-N-acetylgalctosamine in the presence of epimerase, directly with uridine diphosphate-N-acetylglucosamine pyrophosphorylase thereby to decompose uridine diphosphate-N-acetylglucosamine remaining in the reaction solution.

    摘要翻译： 公开了一种制备尿苷二磷酸-N-乙酰半乳糖胺的方法，包括处理其中尿苷二磷酸-N-乙酰氨基葡萄糖在差向异构酶存在下酶促转化为尿苷二磷酸-N-庚酰基高辛胺的反应溶液，直接用尿苷二磷酸 -N-乙酰葡糖胺焦磷酸化酶，从而分解留在反应溶液中的尿苷二磷酸-N-乙酰氨基葡萄糖。