octyl 2-mercaptopropanoate

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: octyl 2-mercaptopropanoate
• 英文别名: Octyl 2-sulfanylpropanoate
• 化学式: C₁₁H₂₂O₂S
• 分子量: 218.36
• InChiKey: SFHANYOFMGEJCT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  14
• 可旋转键数：
  9
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.91
• 拓扑面积：
  27.3
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  辛醇 、 硫代乳酸 在 硼酸 作用下， 以 甲苯 为溶剂， 反应 24.0h， 以44%的产率得到octyl 2-mercaptopropanoate
  参考文献：
  名称：

  新的硼（III）催化的酰胺和酯缩合反应

  摘要：

  1996年，我们报道了在间位或对位带有吸电子基团的苯硼酸是在极性较小的溶剂中进行酰胺缩合反应的高效催化剂。在本文中，我们报告了在极性更大的溶剂中，N-烷基-4-硼吡啶鎓卤化物比以前的催化剂更有效。ñ-烷基-4-硼烷基吡啶鎓卤化物不仅对于羧酸和胺的等摩尔混合物之间的酰胺缩合有效，而且对于在醇溶剂中α-羟基羧酸的酯化都是有效的。此外，对于空间上需要的羧酸的酰胺缩合，全氯儿茶酚硼烷比芳烃硼酸更有效。此外，路易斯酸辅助的布朗斯台德酸（LBA）由硼酸和四氯邻苯二酚的1：2 M混合物制得，对从醇和腈到酰胺的Ritter反应有效。

  DOI：

  10.1016/j.tet.2007.03.157

文献信息

• Polycarboxylic acid copolymer, production method and use thereof
  申请人：——

  公开号：US20020193547A1

  公开（公告）日：2002-12-19

  It is an object of the present invention to provide a polycarboxylic acid copolymer which improves the water reducing capacity and workability of cement compositions and the like and making them easier to handle when the fluidity and water reducing capacity are at the same levels, a method of producing the copolymer, and a cement additive and a cement composition comprising the copolymer. The present invention is further to provide a polycarboxylic acid copolymer and a cement additive which are capable of improving the strength and durability of hardening products of cement compositions, hence can advantageously be used in ultrahigh strength concrete. The present invention is still further to provide a method of producing polycarboxylic acid copolymers having high water reducing capacity, reducing the viscosity of cement compositions and improving the workability in applying cement. The present invention is directed to a polycarboxylic acid copolymer which is obtained by copolymerization of monomer components comprising a polyalkyleneimine unsaturated monomer (A1) and an unsaturated carboxylic acid monomer (B).

  本发明的目的是提供一种聚羧酸共聚物，该共聚物可以提高水减量和可操作性，并使其更易于处理，当流动性和水减量相同时，制备该共聚物的方法以及包括该共聚物的水泥添加剂和水泥组合物。本发明还提供了一种聚羧酸共聚物和水泥添加剂，它们能够提高水泥组合物的硬化产品的强度和耐久性，因此可以有利地用于超高强度混凝土。本发明还提供了一种制备具有高水减量能力的聚羧酸共聚物的方法，该方法可以减少水泥组合物的粘度并改善应用水泥的可操作性。本发明涉及一种聚羧酸共聚物，该共聚物通过共聚合包括聚烷基亚胺不饱和单体（A1）和不饱和羧酸单体（B）的单体组分而得到。
• Method for improving adhesion of durable coatings to weathered substrates and coatings made therefrom
  申请人：ROHM AND HAAS COMPANY

  公开号：EP0697417A1

  公开（公告）日：1996-02-21

  A latex binder suitable for producing high gloss coating on weathered substrates and a method for producing such coatings. The binder includes a low molecular weight and low acid number latex polymer having an acid functional and an enamine functional moiety that results from the reaction of ammonia or amine with an acetoacetyl functional pendant moiety on the latex polymer. A film containing the latex binder is applied on a substrate and then exposed to ambient light and air to produce a high gloss highly adherent film on difficult to adhere surfaces, such as weathered chalky substrates.

  一种适用于在风化底材上生产高光泽涂料的乳胶粘合剂和一种生产这种涂料的方法。这种粘合剂包括一种低分子量、低酸数的乳胶聚合物，它具有酸官能团和烯胺官能团，烯胺官能团是由氨或胺与乳胶聚合物上的乙酰乙酰官能团悬垂分子反应生成的。将含有乳胶粘合剂的薄膜涂抹在基材上，然后暴露在环境光和空气中，可在风化的白垩质基材等难以附着的表面上形成高光泽、高附着力的薄膜。
• Method for production of sulfide group containing thiol compound
  申请人：NIPPON SHOKUBAI CO., LTD.

  公开号：EP0819674A2

  公开（公告）日：1998-01-21

  A method for the production of a sulfide group-containing thiol compound which comprises causing alkylene sulfide to react with a thiol compound in the presence of at least one basic catalyst selected from the group consisting of basic ion-exchange resins, quaternary ammonium compounds and alkyl pyridinium compounds, thereby inducing the ring-opening addition of the alkylene sulfide to the thiol compound. Further, a method for the production of a sulfide group-containing mercaptocarboxylic ester which comprises causing an alkylene sulfide to react with a mercaptocarboxylic ester.

  一种生产含硫化基硫醇化合物的方法，包括在至少一种碱性催化剂存在下，使亚硫酸亚烷基与硫醇化合物反应，该碱性催化剂选自由碱性离子交换树脂、季铵化合物和烷基吡啶鎓化合物组成的组，从而诱导亚硫酸亚烷基与硫醇化合物的开环加成。此外，一种生产含硫化基的巯基羧酸酯的方法，包括使亚硫化烷基与巯基羧酸酯反应。
• POLYCARBOXYLIC ACID TYPE COPOLYMER AND METHOD FOR PRODUCING THE SAME, AND USE OF THE SAME
  申请人：Nippon Shokubai Co., Ltd.

  公开号：EP1361233A1

  公开（公告）日：2003-11-12

  It is an object of the present invention to provide a polycarboxylic acid copolymer which improves the water reducing capacity and workability of cement compositions and the like and making them easier to handle when the fluidity and water reducing capacity are at the same levels, a method of producing the copolymer, and a cement additive and a cement composition comprising the copolymer. The present invention is further to provide a polycarboxylic acid copolymer and a cement additive which are capable of improving the strength and durability of hardening products of cement compositions, hence can advantageously be used in ultrahigh strength concrete. The present invention is still further to provide a method of producing polycarboxylic acid copolymers having high water reducing capacity, reducing the viscosity of cement compositions and improving the workability in applying cement. The present invention is directed to a polycarboxylic acid copolymer which is obtained by copolymerization of monomer components comprising a polyalkyleneimine unsaturated monomer (A1) and an unsaturated carboxylic acid monomer (B).

  本发明的目的是提供一种聚羧酸共聚物，当流动性和减水能力处于同一水平时，该共聚物可提高水泥组合物等的减水能力和工作性，并使其更易于处理；还提供一种生产该共聚物的方法，以及一种水泥添加剂和一种含有该共聚物的水泥组合物。本发明进一步提供了一种聚羧酸共聚物和一种水泥添加剂，它们能够提高水泥组合物硬化产物的强度和耐久性，因此可用于超高强度混凝土中。本发明还进一步提供了一种生产具有高减水能力的聚羧酸共聚物的方法，该方法可降低水泥组合物的粘度并改善涂抹水泥时的工作性。 本发明涉及一种聚羧酸共聚物，它是由聚亚烷基亚胺不饱和单体(A1)和不饱和羧酸单体(B)组成的单体组分共聚合得到的。
• Polycarboxylic acid cement dispersant and method for producing concrete secondary product
  申请人：Nippon Shokubai Co., Ltd.

  公开号：EP1466930A2

  公开（公告）日：2004-10-13

  The polycarboxylic acid cement dispersant of the present invention can exhibit high dispersing ability and allow deforming in early stages in the case of producing concrete products, whereby the turnover of a formwork is increased so as to improve productivity, and the method of producing a concrete product of the present invention can allow deforming in early stages, whereby the turnover of a formwork is increased so as to improve productivity. The polycarboxylic acid cement dispersant which provides a cement composition having a penetration resistance value exponent of 55 MPa or more and a slump retention exponent of 80% or more, and the method of producing a concrete product which makes use of a copolymer derived by using monomer components comprising the monomer (A) as polyalkylene glycol unsaturated monomer, the monomer (B) as unsaturated carboxylic monomer, and the monomer (C) as sulfonic acid group-containing monomer.

  本发明的聚羧酸水泥分散剂可以表现出很高的分散能力，在生产混凝土产品时可以在早期阶段变形，从而提高模板的周转率以提高生产率，本发明的混凝土产品生产方法可以在早期阶段变形，从而提高模板的周转率以提高生产率。 本发明的聚羧酸水泥分散剂可提供抗渗透值指数为 55 兆帕或更高和坍落度保持指数为 80% 或更高的水泥组合物，本发明的混凝土产品生产方法使用了通过单体成分衍生的共聚物，单体成分包括作为聚亚烷基二醇不饱和单体的单体(A)、作为不饱和羧酸单体的单体(B)和作为含磺酸基单体的单体(C)。