methacrylic acid o-tolyl ester | 74937-80-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚酯
• 英文名称: methacrylic acid o-tolyl ester
• 英文别名: Methacrylsaeure-o-tolylester；o-Tolyl-methacrylat；2-Methacryloyloxy-toluol；o-Tolyl methacrylate；(2-methylphenyl) 2-methylprop-2-enoate
• CAS: 74937-80-7
• 化学式: C₁₁H₁₂O₂
• 分子量: 176.215
• InChiKey: HEXDQNXIVJEYLG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  methacrylic acid o-tolyl ester 在 间氯过氧苯甲酸 作用下， 以 二氯甲烷 为溶剂， 以2.3 g的产率得到o-tolyl 2-methyloxirane-2-carboxylate
  参考文献：
  名称：

  通过环氧化物的催化对映异构烯丙基化形成四元立构中心

  摘要：

  用于合成全碳四元立构中心的催化和对映选择性转化的发展长期以来被认为是有机合成中的重大挑战。尽管在不对称烯丙基化方面已经取得了相当大的进展，但它们对常用合成子环氧化物进行官能化的潜力仍然很大程度上尚未得到充分开发。在这里，我们展示了环氧化物的第一个高度区域和对映选择性烯丙基化，在面对潜在问题的消除和质子化反应时，它提供了一系列四元立构中心。该反应在温和条件下通过自由基方法进行，并受益于使用地球丰富的钛和高度复杂的萨伦配体，这有利于显着的对映体控制并抑制不需要的副反应。所得的烯丙基化产物是多功能构件，可以通过化学和立体选择性的方式精细加工成广泛的立体定义的结构基序。

  DOI：

  10.1021/jacs.3c08188
• 作为产物：
  描述：

  邻甲酚 、 甲基丙烯酰氯 在 sodium hydroxide 作用下， 生成 methacrylic acid o-tolyl ester
  参考文献：
  名称：

  Koton et al., Zhurnal Obshchei Khimii, 1958, vol. 28, p. 417,420; engl. Ausg. S. 409, 411

  摘要：

  DOI：

文献信息

• Process for producing polymer having crosslinkable silyl group and curable composition
  申请人：——

  公开号：US20040220364A1

  公开（公告）日：2004-11-04

  A process for producing a crosslinkable silyl group-containing polymer which is excellent in oil resistance, heat resistance, weatherability, low staining properties, and compression set characteristics, includes the steps of radically polymerizing a vinyl monomer in the presence of a thiocarbonylthio group-containing compound with a specific structure, and introducing crosslinkable silyl groups. Also provided is a curable composition which contains the polymer and which is easy to handle.

  一种生产含有交联硅基聚合物的方法，该聚合物具有优异的耐油性、耐热性、耐候性、低染色性和压缩永久变形特性，该方法包括在具有特定结构的硫代氨基羰基硫基化合物的存在下，自由基聚合乙烯单体，并引入可交联的硅基团。此外，还提供了一种易于处理的含有该聚合物的可固化组合物。
• Thermoplastic resin composition and elastomer composition
  申请人：——

  公开号：US20040106732A1

  公开（公告）日：2004-06-03

  Provided are a thermoplastic resin composition which is excellent in oil resistance, heat resistance, weatherability, impact resistance, transparency, and moldability, and which can be produced economically, an elastomer composition with low hardness and high tensile strength which is excellent in oil resistance and compression set, and a molded object produced by molding the thermoplastic resin composition or elastomer composition. The composition is produced by compounding a thermoplastic resin or an elastomer with a block copolymer having at least one methacrylic ester polymer block and at least one acrylic ester polymer block. Also provided are a process for producing a methacrylic ester-acrylic ester-methacrylic ester block copolymer which requires hardly any purification, which is excellent in heat resistance and weatherability, and in which the molecular weight and the molecular-weight distribution are controlled, and a methacrylic ester-acrylic ester-methacrylic ester block copolymer produced by the process.

  提供了一种热塑性树脂组合物，具有优异的耐油性、耐热性、耐候性、抗冲击性、透明度和成型性，且可经济生产；一种低硬度、高拉伸强度的弹性体组合物，具有优异的耐油性和压缩回弹性；以及由该热塑性树脂组合物或弹性体组合物成型而成的成型物。该组合物通过将热塑性树脂或弹性体与至少具有一个甲基丙烯酸酯聚合物块和至少一个丙烯酸酯聚合物块的嵌段共聚物混合制备而成。 同时提供了一种制备甲基丙烯酸酯-丙烯酸酯-甲基丙烯酸酯嵌段共聚物的方法，该方法几乎不需要纯化，具有优异的耐热性和耐候性，并且分子量和分子量分布可控；以及由该方法制备的甲基丙烯酸酯-丙烯酸酯-甲基丙烯酸酯嵌段共聚物。
• Block copolymer
  申请人：——

  公开号：US20040236020A1

  公开（公告）日：2004-11-25

  Provided are a block copolymer including a polymer block containing acrylonitrile or methacrylonitrile as a principal constituent, which is excellent in heat resistance, weatherability, oil resistance, flame retardancy, and low-temperature resistance and which can be economically produced; and a thermoplastic resin composition and an elastomer composition each containing the block copolymer. The block copolymer is produced by reversible addition-fragmentation chain transfer polymerization in the presence of a thiocarbonylthio group-containing compound.

  提供的是一种块状嵌段共聚物，包括一个聚合物块，其中含有丙烯腈或甲基丙烯腈作为主要成分，该共聚物在耐热性、耐候性、耐油性、阻燃性和低温性方面表现出色，并且可以经济地生产；以及分别含有该块状嵌段共聚物的热塑性树脂组合物和弹性体组合物。该块状嵌段共聚物是在含有硫代氨基甲酸酯化合物的情况下通过可逆加成-断裂链转移聚合制备的。
• Curable composition
  申请人：——

  公开号：US20040249026A1

  公开（公告）日：2004-12-09

  Provided is a curable composition which can easily regulate the properties of a cured object prepared therefrom, which can prepare a cured object that does not substantially discolor or soften a finishing agent or coating material applied to the surface thereof, and which has a high curing rate in the inner regions. The curable composition contains (A) a polymer having at least one mercapto group at the molecular ends, the polymer being derived from a thiocarbonylthio group-containing polymer (a2) prepared by polymerizing a monomer (a1) which contains an acrylic ester as a principal component and which contains 50% by weight or more of the acrylic ester and less than 50% by weight of a monomer copolymerizable with the acrylic ester in the presence of a thiocarbonylthio group-containing compound; (B) a compound having at least two mercapto groups per molecule; and (C) an oxidizing agent.

  提供了一种可治愈的组合物，可以轻松调节所制备的治愈物体的性质，可以制备出不会显着变色或软化表面上涂有精加工剂或涂层材料的治愈物体，并且具有内部区域高固化速率。可治愈组合物包含（A）一种聚合物，在分子末端具有至少一个巯基，该聚合物是由含有硫代羰基硫基的聚合物（a2）衍生而来，所述聚合物是通过在含有硫代羰基硫基化合物的存在下聚合含有丙烯酸酯为主要成分且含有50％或更多丙烯酸酯和少于50％与丙烯酸酯共聚的单体（a1）而制备的；（B）每个分子中至少有两个巯基的化合物；和（C）氧化剂。
• Polyurethane polymer
  申请人：——

  公开号：US20040171765A1

  公开（公告）日：2004-09-02

  Provided is a polyurethane polymer which is excellent in oil resistance, weatherability, light resistance, heat resistance, hot water resistance, hydrolysis resistance, strength, chlorine resistance, and chemical resistance, and which can be produced simply and economically. The polyurethane polymer is produced by polymerizing at least two components: a vinyl polymer (A) having a mercapto group at each end of the molecular chain produced by a reversible addition-fragmentation chain transfer polymerization method, and an organic polyisocyanate (B). Also provided are polyurethane-based materials containing the polyurethane polymer, and polyurethane elastic fiber.

  提供了一种聚氨酯聚合物，具有优异的耐油性、耐候性、耐光性、耐热性、耐热水性、耐水解性、强度、耐氯性和耐化学性，可以简单经济地生产。该聚氨酯聚合物通过聚合至少两种组分制备：一种乙烯基聚合物(A)，其分子链的每端具有一个巯基，通过可逆加成-断裂链转移聚合方法制备，和一种有机多异氰酸酯(B)。还提供了含有该聚氨酯聚合物的聚氨酯基材料和聚氨酯弹性纤维。