(E)-1-methyl-1-styrylurea | 57610-98-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (E)-1-methyl-1-styrylurea
• 英文别名: 1-Methyl-1-((E)-styryl)-urea；1-methyl-1-[(E)-2-phenylethenyl]urea
• CAS: 57610-98-7
• 化学式: C₁₀H₁₂N₂O
• 分子量: 176.218
• InChiKey: ULCQSIJQZCIQNF-BQYQJAHWSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  46.3
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  N-(trans-Styrylsulfonyl)-N'-methyl-S-methyl-isothioharnstoff 在 sodium hydroxide 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成 (E)-1-methyl-1-styrylurea
  参考文献：
  名称：

  Smiles-Type Rearrangement ofN-trans-Styrylsulfonyl) andN-(4-Phenyl-1,3-butadienylsulfonyl)thioureas and Isothioureas

  摘要：

  用强碱处理N-(反式苯乙烯磺酰基)-（1）和N-(4-苯基-1,3-丁二烯基磺酰基)-N′-甲基硫脲（2）以及相应的S-甲基异硫脲（6和7），可得到Smiles型和Michael型产物。讨论了C-2上的取代基和亲核试剂对产物的影响。

  DOI：

  10.1246/bcsj.48.2611

文献信息

• Radiation-curable silicone elastomers and pressure sensitive adhesives
  申请人：MINNESOTA MINING AND MANUFACTURING COMPANY

  公开号：EP0421643A2

  公开（公告）日：1991-04-10

  A composition which is curable to an elastomer comprising: A polymer or mixture of polymers of the formula wherein: X are monovalent moieties having ethylenic unsaturation which can be the same or different; Y are divalent linking groups which can be the same or different; m is an integer of 0 to 1; D are monovalent moieties which can be the same or different selected from the group consisting of hydrogen, an alkyl group of 1 to about 10 carbon atoms, aryl, and substituted aryl; R are divalent hydrocarbon groups which can be the same or different; R1 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl; R2 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl; R3 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, vinyl, aryl, and substituted aryl; R4 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, vinyl, aryl, and substituted aryl; and n is an integer of about 270 to about 1000. A composition which is curable to a pressure sensitive adhesive comprising the above polymer and a sufficient amount of tackifier. The invention also relates to fluorosilane compounds useful in the preparation of silicone macromonomer, their preparation and the preparation of silicone macromonomer.

  一种可固化成弹性体的组合物，包括式中的聚合物或聚合物混合物 其中 X 是具有乙烯不饱和度的单价分子，可以相同或不同； Y 是二价连接基团，可以相同或不同； m 是 0 至 1 的整数； D 是一价基团，可以相同或不同，选自氢、1 至约 10 个碳原子的烷基、芳基和取代芳基组成的组； R 是二价烃基，可以相同或不同； R1 为单价分子，可以相同或不同，选自烷基、取代烷基、芳基和取代芳基组成的组； R2 为单价分子，可以相同或不同，选自由烷基、取代烷基、芳基和取代芳基组成的组； R3 为单价分子，可以相同或不同，选自由烷基、取代烷基、乙烯基、芳基和取代芳基组成的组； R4 是选自烷基、取代烷基、乙烯基、芳基和取代芳基组成的组中相同或不同的单价分子；以及 n 是约 270 到约 1000 的整数。 可固化为压敏胶的组合物，包括上述聚合物和足量的增粘剂。本发明还涉及可用于制备有机硅大单体的氟硅烷化合物、其制备方法和有机硅大单体的制备方法。
• Silicone-based pressure-sensitive adhesive
  申请人：3M INNOVATIVE PROPERTIES COMPANY

  公开号：US10822532B2

  公开（公告）日：2020-11-03

  Silicone-based pressure-sensitive adhesives, reaction mixtures used to form the pressure-sensitive adhesives, methods of making the silicone-based pressure-sensitive adhesives, and articles containing the silicone-based pressure-sensitive adhesives are described. More particularly, the silicone-based pressure-sensitive adhesives include silicone-based elastomeric materials that are prepared by polymerizing a silicone compound having at least two ethylenically unsaturated groups in the presence of actinic radiation (e.g., ultraviolet radiation) and a controlled radical initiator. The controlled radical initiator is a bis-dithiocarbamate or bis-dithiocarbonate compound having a single carbon between the two dithiocarbamate or dithiocarbonate groups.

  描述了基于硅酮的压敏胶、用于形成压敏胶的反应混合物、制备基于硅酮的压敏胶的方法，以及包含基于硅酮的压敏胶的产品。具体而言，基于硅酮的压敏胶包括通过在光活化辐射（例如紫外线）和受控自由基引发剂的存在下聚合至少具有两个乙烯基不饱和基团的硅酮化合物而制备的弹性材料。受控自由基引发剂是具有两个硫代氨基甲酸酯或硫代碳酸酯基团之间单个碳原子的双硫代氨基甲酸酯或双硫代碳酸酯化合物。
• Photo-radical cure of silicones
  申请人：3M INNOVATIVE PROPERTIES COMPANY

  公开号：US10836934B2

  公开（公告）日：2020-11-17

  Silicone-based elastomeric materials, articles containing the silicone-based elastomeric materials, reaction mixtures used to form the silicone-based elastomeric materials, and methods of making the silicone-based elastomeric materials are described. The silicone-based elastomeric materials are prepared by polymerizing silicone compounds having at least two ethylenically unsaturated groups in the presence of actinic radiation and a controlled radical initiator. The controlled radical initiators are bis-dithiocarbamate or bis-dithiocarbonate compounds having a single carbon between the two dithiocarbamate or dithiocarbonate groups. The silicone-based elastomeric materials typically have improved mechanical properties compared to silicone-based elastomeric materials formed by free radical polymerization reactions in the presence of conventional photoinitiators.

  本文描述了硅基弹性材料、含有硅基弹性材料的物品、用于形成硅基弹性材料的反应混合物以及硅基弹性材料的制造方法。硅基弹性体材料的制备方法是：在光辐射和受控自由基引发剂存在的情况下，聚合具有至少两个乙烯基不饱和基团的硅化合物。受控自由基引发剂是双二硫代氨基甲酸酯或双二硫代碳酸酯化合物，在两个二硫代氨基甲酸酯或二硫代碳酸酯基团之间有一个碳。与在传统光引发剂存在下通过自由基聚合反应形成的硅基弹性材料相比，硅基弹性材料通常具有更好的机械性能。
• Cooperative Fe/Co-Catalyzed Remote Desaturation for the Synthesis of Unsaturated Amide Derivatives
  作者：Yanjun Wan、Emmanuel Ramírez、Ayzia Ford、Harriet K. Zhang、Jack R. Norton、Gang Li

  DOI：10.1021/jacs.3c14481

  日期：2024.2.21

  Unsaturated amides represent common functional groups found in natural products and bioactive molecules and serve as versatile synthetic building blocks. Here, we report an iron(II)/cobalt(II) dual catalytic system for the syntheses of distally unsaturated amide derivatives. The transformation proceeds through an iron nitrenoid-mediated 1,5-hydrogen atom transfer (1,5-HAT) mechanism. Subsequently,

  不饱和酰胺代表天然产物和生物活性分子中常见的官能团，可作为多功能合成构件。在这里，我们报道了一种用于合成远端不饱和酰胺衍生物的铁（II）/钴（II）双催化系统。该转化通过铁氮烯介导的 1,5-氢原子转移 (1,5-HAT) 机制进行。随后，自由基中间体在钴肟催化剂的作用下从邻位亚甲基中夺取氢原子，在温和的条件下有效地生成β,γ-或γ,δ-不饱和酰胺衍生物。共介 HAT 的效率可以通过改变不同的辅助设备来调整，突出了该协议的通用性。值得注意的是，这种去饱和方案还适合实际的可扩展性，能够合成不饱和氨基甲酸酯和脲，它们可以很容易地转化为各种有价值的分子。
• HASEGAWA KIYOSHI; HIROOKA SYUZI; SASAKI TADASHI, BULL. CHEM. SOC. JAP. <BCSJ-A8>, 1975, 48, NO 9, 2611-2612
  作者：HASEGAWA KIYOSHI、 HIROOKA SYUZI、 SASAKI TADASHI

  DOI：——

  日期：——