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    • 2. 发明授权
    • 2-Mercaptobenzothiazole manganese zinc, preparation method therefor and application thereof
    • 2-巯基苯并噻唑锰锌,其制备方法及其应用
    • US09499501B2
    • 2016-11-22
    • US14653654
    • 2013-11-30
    • Henan Xinxiang Academy of Agriculture Sciences
    • Zhenjun WangXu ZhangLimin WangHongyan LiuSenxiang ChengMengjiao Li
    • C07D277/72C07D277/70A01N43/78A01N59/16
    • C07D277/72A01N43/78A01N59/16C07D277/70Y02A50/359A01N2300/00
    • The present invention belongs to the technical field of agricultural fungicides and discloses a 2-mercaptobenzothiazole manganese zinc, preparation method therefor and application thereof. The chemical structure of the 2-mercaptobenzothiazole manganese zinc is shown as the above formula. Wherein m, n and n′ are positive integers, m=2(n+n′), n≧n′, n:n′=1:1˜9:1. Materials are prepared according to the stoichiometric ratio of the target products; 2-mercaptobenzothiazole is dissolved in sodium hydroxide solution. The aqueous solution of water-soluble manganese salts and water-soluble zinc salts solution are successively added to 2-mercaptobenzothiazole sodium solution under stirring, followed by stirring for mixing well, then the solution being allowed to stand, filtered and washed with water to obtain filter cake, and then dried in vacuum to obtain 2-mercaptobenzothiazole manganese zinc. The present 2-mercaptobenzothiazole manganese zinc may be used as an agricultural fungicide. The present invention coordinates the surface of solid particles of 2-mercaptobenzothiazole manganese with zinc to form a stable clathrate of 2-mercaptobenzothiazole manganese and zinc. Tests show that the clathrate has excellent effect for controlling a plurality of diseases including apple alternaria leaf spot, pear scab, apple ring rot, apple anthracnose and the like.
    • 本发明属于农药杀菌剂的技术领域,公开了2-巯基苯并噻唑锰锌,其制备方法及应用。 2-巯基苯并噻唑锰锌的化学结构如上式所示。 其中m,n和n'为正整数,m = 2(n + n'),n≥n',n:n'= 1:1〜9:1。 材料根据目标产品的化学计量比制备; 将2-巯基苯并噻唑溶解在氢氧化钠溶液中。 将水溶性锰盐和水溶性锌盐溶液的水溶液在搅拌下依次加入到2-巯基苯并噻唑钠溶液中,搅拌均匀,然后静置,过滤并用水洗涤,得到 滤饼,然后真空干燥,得到2-巯基苯并噻唑锰锌。 本发明的2-巯基苯并噻唑锰锌可用作农业杀真菌剂。 本发明用锌与2-巯基苯并噻唑锰的固体颗粒表面配位,形成稳定的2-巯基苯并噻唑锰和锌的包合物。 试验结果表明,包合物对苹果叶斑病,梨痂病,苹果腐烂,苹果炭疽病等多种疾病的控制效果优异。
    • 3. 发明授权
    • Process for the preparation of benzothiazolyl-2-sulphenamides
    • 苯并噻唑基-2-磺基苯胺的制备方法
    • US5436346A
    • 1995-07-25
    • US240780
    • 1994-06-21
    • Ludwig EisenhuthManfred Bergfeld
    • Ludwig EisenhuthManfred Bergfeld
    • C07D277/80A61K31/425C07D277/72
    • C07D277/80
    • The process for the preparation of benzothiazolyl-2-sulphenamides, by reacting a 2-mercaptobenzothiazole or dibenzothiazolyl 2,2'-disulphide with a primary or secondary aliphatic or cycloaliphatic amine in the presence of hydrogen peroxide as oxidizing agent in an aqueous medium is distinguished in that an aqueous hydrogen peroxide solution is metered at a temperature in the range from 30.degree. to 70.degree. C. into an aqueous suspension of the respective amine and the 2-mercaptobenzothiazole or dibenzothiazolyl 2,2'-disulphide in a ratio in the range between 1.0 and 1.5 mol of amine per mole of 2-mercaptobenzothiazole or per equivalent of dibenzothiazolyl 2,2'-disulphide, preferably in a quantity of below 1.35 mol per mole of 2-mercaptobenzothiazole or per equivalent of dibenzothiazolyl 2,2'-disulphide over a period of at least 60 minutes. The total quantity of water in the reaction mixture should not exceed 1500 g per mole of 2-mercaptobenzothiazole. An environmentally friendly and economic process is provided for the preparation of benzothiazolyl-2-sulphenamides in high yield and with high selectivity.
    • PCT No.PCT / EP92 / 02917 371日期:1994年6月21日 102(e)日期1994年6月21日PCT提交1992年12月16日PCT公布。 公开号WO93 / 13084 日期:1993年7月8日。在过氧化氢作为氧化剂存在下,通过使2-巯基苯并噻唑或二苯并噻唑基2,2'-二硫化物与伯或仲脂族或脂环族胺反应制备苯并噻唑-2-磺酰胺的方法 在水性介质中的试剂的特征在于,将过氧化氢水溶液在30℃至70℃的温度下计量加入到相应的胺和2-巯基苯并噻唑或二苯并噻唑基的水悬浮液中, 以每摩尔2-巯基苯并噻唑或每当量二苯并噻唑基2,2'-二硫化物的1.0至1.5摩尔胺之间的比例的二硫化物,优选以低于1.35摩尔/摩尔2-巯基苯并噻唑或每当量的 二苯并噻唑基2,2'-二硫化物,至少60分钟。 反应混合物中的水的总量不应超过每摩尔2-巯基苯并噻唑1500克。 提供了一种环保经济的方法,以高产率和高选择性制备苯并噻唑-2-磺酰胺。