1-benzyl-2-ethyl-5-methylimidazole

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 1-benzyl-2-ethyl-5-methylimidazole
• 化学式: C₁₃H₁₆N₂
• 分子量: 200.283
• InChiKey: VOJAMWORWOLUKL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  17.8
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-溴吡啶 、 1-benzyl-2-ethyl-5-methylimidazole 在 Pd(opiv)2 、 4,7-bis-(4-fluorophenyl)-1,10-phenanthroline 、 caesium carbonate 作用下， 以 甲苯 为溶剂， 反应 24.0h， 以30%的产率得到
  参考文献：
  名称：

  钯催化的2,5-二取代咪唑的CH杂芳基化。

  摘要：

  我们使用N-杂芳基卤化物作为偶联伙伴，在C4-位上开发了钯催化的N-保护的2,5-二取代的咪唑的CH N-杂芳基化。通过严格的反应条件筛选，我们确定了氟化邻菲咯啉7是钯催化剂的最佳配体。该反应将通过促进含有咪唑环的杂联芳基化合物的合成来增强候选药物的铅优化。

  DOI：

  10.1248/cpb.c18-00586
• 作为产物：
  描述：

  氯化苄 生成 1-benzyl-2-ethyl-5-methylimidazole
  参考文献：
  名称：

  CABA, NATSUO;MASUDA, TAKEHSI;MIURA, MASADZO;KARINO, NAOKI;KAMAGATA, KADZU+

  摘要：

  DOI：

文献信息

• ACRYLIC RUBBER COMPOSITION, ACRYLIC RUBBER MOLDED PRODUCT, AND METHOD FOR PRODUCING SAME
  申请人：DAIKIN INDUSTRIES, LTD.

  公开号：US20140346707A1

  公开（公告）日：2014-11-27

  The present invention aims to provide an acrylic rubber composition capable of giving an acrylic rubber molded product good in low-friction properties and non-sticking properties. The present invention relates to an acrylic rubber composition containing an acrylic rubber (A) and a fluororesin (B), the fluororesin (B) being a perfluororesin.

  本发明旨在提供一种丙烯酸橡胶组合物，能够使丙烯酸橡胶模塑产品具有良好的低摩擦性和不粘性能。本发明涉及一种丙烯酸橡胶组合物，包含丙烯酸橡胶（A）和氟树脂（B），其中氟树脂（B）是一种全氟树脂。
• Adhesive tape for electronic parts and liquid adhesive
  申请人：TOMOEGAWA PAPER CO. LTD.

  公开号：EP0649892A1

  公开（公告）日：1995-04-26

  This invention is to provide a liquid adhesive of the present invention can be adhered and cured at a relatively low temperature and have sufficient heat resistance and reliability, etc., and an adhesive tape using the same. The liquid adhesive of this invention is obtainable by dissolving (a) a piperazinylethylaminocarbonyl-containing butadiene-acrylonitrile copolymer having a weight average molecular weight of 10,000-200,000, an acrylonitrile content of 5-50% by weight, and an amino equivalent of 500-10,000, represented by the following formula (I): wherein, k, m, and n are molar ratios and taking n as 1, k is a number of 3-175, and m is a number of 0.3 to 93; and (b) a compound having at least two maleimide groups, the ratio of component (b) based on 100 parts by weight of component (a) being in the range of 10 to 900 parts by weight. This is applied to one or both surfaces of a heat resistant film or one surface of a release film to form an adhesive layer, thereby obtaining an adhesive tape for electronic parts.

  本发明旨在提供一种可在相对较低温度下粘合和固化并具有足够耐热性和可靠性等优点的本发明液体粘合剂，以及使用该粘合剂的胶带。 本发明的液体粘合剂可通过溶解 (a) 含哌嗪基乙基氨基羰基的丁二烯-丙烯腈共聚物来获得，该共聚物的重量平均分子量为 10,000-200,000 ，丙烯腈含量为 5-50%（重量百分比），氨基当量为 500-10,000 ，由下式(I)表示： 其中，k、m 和 n 为摩尔比，取 n 为 1，k 为 3-175 的数值，m 为 0.3 至 93 的数值；以及 (b) 具有至少两个马来酰亚胺基团的化合物，组分(b)与 100 重量份组分(a)的比率为 10 至 900 重量份。将其涂在耐热薄膜的一个表面或两个表面上，或涂在离型膜的一个表面上，形成粘合层，从而获得用于电子零件的胶带。
• ACRYLIC RUBBER COMPOSITION, VULCANIZED RUBBER OBTAINED THEREFROM, AND USE THEREOF
  申请人：Denki Kagaku Kogyo Kabushiki Kaisha

  公开号：EP2154196A1

  公开（公告）日：2010-02-17

  To provide an acrylic rubber composition and a vulcanized rubber that ensure heat resistance of the vulcanized rubber, especially less changes in the elongation at break (EB) and hardness under heating conditions of the vulcanized rubber. An acrylic rubber composition comprising an epoxy group-containing acrylic rubber and, per 100 parts by mass of the epoxy group-containing acrylic rubber, from 10 to 100 parts by mass of carbon black, from 0.1 to 15 parts by mass of at least one primary antioxidant selected from the group consisting of an amine antioxidant and a phenolic antioxidant, from 0.1 to 15 parts by mass of at least one secondary antioxidant selected from the group consisting of a phosphorus antioxidant and a sulfur antioxidant, from 0.1 to 5 parts by mass of an imidazole compound, from 0.1 to 5 parts by mass of a trimethylthiourea, and from 0.1 to 5 parts by mass of a quaternary ammonium salt.

  提供一种丙烯酸橡胶组合物和硫化橡胶，确保硫化橡胶的耐热性，尤其是硫化橡胶在加热条件下的断裂伸长率（EB）和硬度变化较小。 一种丙烯酸橡胶组合物，包括含环氧基团的丙烯酸橡胶，以及每 100 份含环氧基团的丙烯酸橡胶中含 10 至 100 份碳黑、0.1 至 15 份至少一种一级抗氧化剂（选自胺类抗氧化剂和酚类抗氧化剂）、0.1 至 15 份（质量份数）至少一种二级抗氧化剂（选自磷抗氧化剂和硫抗氧化剂）、0.1 至 5 份（质量份数）咪唑化合物、0.1 至 5 份（质量份数）三甲基硫脲和 0.1 至 5 份（质量份数）季铵盐。
• ACRYLIC RUBBER
  申请人：Denki Kagaku Kogyo Kabushiki Kaisha

  公开号：EP2246373A1

  公开（公告）日：2010-11-03

  To provide an acrylic rubber composition having an excellent heat resistance, especially an excellent balance between the residual ratio of the tensile strength and the residual ratio of the elongation after heat aging, when formed into a vulcanized product, and a hose article, a sealing article and a rubber vibration insulator using the acrylic rubber composition. An acrylic rubber composition containing an acrylic rubber obtainable by copolymerizing 100 parts by mass of an alkyl acrylate with from 10 to 100 parts by mass of an alkyl methacrylate and from 0.5 to 4 parts by mass of a crosslinkable monomer. Here, the alkyl methacrylate is preferably at least one compound selected from the group consisting of methyl methacrylate, ethyl methacrylate and n-butyl methacrylate, and the alkyl acrylate is preferably at least one compound selected from the group consisting of methyl acrylate, ethyl acrylate and n-butyl acrylate.

  提供一种丙烯酸橡胶组合物，该组合物在形成硫化产品时具有优异的耐热性，特别是在热老化后拉伸强度的残余比率和伸长率的残余比率之间具有优异的平衡，并提供一种使用该丙烯酸橡胶组合物的软管制品、密封制品和橡胶减震器。 一种丙烯酸橡胶组合物，其中含有一种丙烯酸橡胶，可通过将 100 份（质量份）丙烯酸烷基酯与 10 至 100 份（质量份）甲基丙烯酸烷基酯以及 0.5 至 4 份（质量份）可交联单体共聚而获得。在这里，甲基丙烯酸烷基酯最好是从甲基丙烯酸甲酯、甲基丙烯酸乙酯和甲基丙烯酸正丁酯组成的组中选出的至少一种化合物，丙烯酸烷基酯最好是从丙烯酸甲酯、丙烯酸乙酯和丙烯酸正丁酯组成的组中选出的至少一种化合物。
• CHLOROPRENE RUBBER COMPOSITION AND VULCANIZED RUBBER THEREOF, AND RUBBER MOLDED PRODUCT, VIBRATION-DAMPING RUBBER MEMBER, ENGINE MOUNT, AND HOSE USING VULCANIZED RUBBER
  申请人：Denki Kagaku Kogyo Kabushiki Kaisha

  公开号：EP2684913A1

  公开（公告）日：2014-01-15

  Desired is a technology for improving the vibration-damping properties of a chloroprene rubber under low-temperature environment without deterioration of the mechanical properties, permanent compression set, and tension fatigue. Provided is a chloroprene rubber composition, comprising a chloroprene rubber at least containing a xanthogen-modified chloroprene rubber and/or a mercaptan-modified chloroprene rubber in an amount of 100 parts by mass, a carbon black having a number-average particle diameter of 70 nm to 600 nm and a DBP oil absorption, as determined by the Oil Absorption A method of JIS-K6221, of 15 ml/100g to 60 ml/100g in an amount of 15 to 150 parts by mass, and a plasticizer represented by the following Chemical Formula (1) in an amount of 3 to 30 parts by mass: [C. 1]         R1COO-(CH2)8-COOR2     (1) (wherein, R1 and R2 each represent an alkyl group having a carbon number of 1 to 7).

  希望获得一种技术，用于改善氯丁二烯橡胶在低温环境下的减震性能，而不会导致机械性能下降、永久压缩永久变形和拉伸疲劳。 本发明提供了一种氯丁二烯橡胶组合物，该组合物包含至少含有黄原改性氯丁二烯橡胶和/或硫醇改性氯丁二烯橡胶（以质量份数计为 100 份）的氯丁二烯橡胶、平均粒径为 70 纳米至 600 纳米的炭黑以及 DBP 吸油量、根据 JIS-K6221 的吸油 A 方法测定，DBP 的吸油量为 15 ml/100g 至 60 ml/100g，用量为 15 至 150 份（按质量份），以及由以下化学式 (1) 表示的增塑剂，用量为 3 至 30 份（按质量份）： [C. 1] r1coo-(ch2)8-coor2 (1) (其中，R1 和 R2 分别代表碳数为 1 至 7 的烷基）。