Process for separating off phenol from a mixture thereof with a cresol
    1.
    发明授权
    Process for separating off phenol from a mixture thereof with a cresol 失效
    从苯酚与甲酚中分离出苯酚的方法

    公开(公告)号:US4325789A

    公开(公告)日:1982-04-20

    申请号:US117171

    申请日:1980-01-31

    CPC分类号: C07C37/78

    摘要: A process for separating phenol from a mixture of the same with cresol which comprises including in the mixture a component which has a dipole moment of 0 to 0.5 Debye and has a boiling point, under 1 bar, in the temperature range from 120.degree. to 220.degree. C. or which has a dipole moment of 0.5 to 2.5 Debyes and has a boiling point, under 1 bar, in the temperature range from 150.degree. to 190.degree. C. and distilling off phenol together with said component to leave behind said cresol.

    摘要翻译: 一种将苯酚与其与甲酚的混合物分离的方法,其中包括在混合物中包含偶极矩为0至0.5德拜的沸点,沸点低于1巴,温度范围为120°至220° 或其具有0.5至2.5德比的偶极矩,并且在150℃至190℃的温度范围内具有1巴以下的沸点,并将苯酚与所述组分一起蒸馏以留下所述甲酚。

    Process for the production of benzothiazole sulphene amides
    2.
    发明授权
    Process for the production of benzothiazole sulphene amides 失效
    苯并噻唑磺酰胺生产工艺

    公开(公告)号:US4801707A

    公开(公告)日:1989-01-31

    申请号:US946695

    申请日:1986-12-24

    CPC分类号: C07D277/80

    摘要: Benzothiazole sulphene amides are obtained from dibenzothiazolyl disulphide and water-soluble amines in the absence of an oxidizing agent and in the presence of aqueous alkali in a high yield and with very good stability in storage by placing the amine solution in water and simultaneously adding dibenzothiazolyl disulphide and aqueous alkali from separate storage vessels.

    摘要翻译: 苯并噻唑磺酰胺由二苯并噻唑二硫化物和水溶性胺在不存在氧化剂的情况下得到,并且在碱存在下以高产率存在,并且通过将胺溶液置于水中并且同时加入二苯并噻唑基二硫化物 和来自分离的储存容器的碱水溶液。

    Process for preparing benzothiazolesulphenamides
    3.
    发明授权
    Process for preparing benzothiazolesulphenamides 失效
    制备苯并噻唑啉酰胺的方法

    公开(公告)号:US4751301A

    公开(公告)日:1988-06-14

    申请号:US856226

    申请日:1986-04-28

    IPC分类号: C07D277/80 C07D413/12

    CPC分类号: C07D277/80

    摘要: Benzothiazolesulphenamides can be prepared in high yield and purity from dibenzothiazolyl disulphide and a primary or secondary amine in the absence of an oxidizing agent in a water-immiscible organic solvent and in the presence of aqueous alkali by presenting a solution of the amine in the organic solvent and adding dibenzothiazolyl disulphide and aqueous alkali either simultaneously or in succession.

    摘要翻译: 苯并噻唑类烟酰胺可以从二苯并噻唑二硫化物和伯胺或仲胺在不与水不混溶的有机溶剂中不存在氧化剂的情况下制备,并且在碱水溶液存在下,通过使胺在有机溶剂中的溶液 同时或连续加入二苯并噻唑二硫化物和碱水溶液。

    Process for the production of 2,2'-dibenzothiazolyl disulphide
    4.
    发明授权
    Process for the production of 2,2'-dibenzothiazolyl disulphide 失效
    制备2,2'-二苯并噻唑基二硫化物的方法

    公开(公告)号:US4591647A

    公开(公告)日:1986-05-27

    申请号:US641528

    申请日:1984-08-16

    申请人: Alfredo Wust

    发明人: Alfredo Wust

    IPC分类号: C07D277/78

    CPC分类号: C07D277/78

    摘要: 2,2'-dibenzothiazolyl disulphide produced from an alkali metal salt of 2-mercaptobenzothiazole by oxidation using chlorine is obtained substantially free from acid by-products if oxidation is carried out under such conditions that the reaction mixture still contains at least 2.5%, by weight, of the alkali metal salt of 2-mercaptobenzothiazole at the end of the reaction.

    摘要翻译: 通过使用氯通过氧化由2-巯基苯并噻唑的碱金属盐制备的2,2'-二苯并噻唑二硫化物获得基本上不含酸副产物,如果在反应混合物仍然含有至少2.5%的条件下进行氧化,通过 重量的反应结束时的2-巯基苯并噻唑的碱金属盐。