5-丁基-1h,3h,5h-嘧啶-2,4,6-三酮 | 1953-33-9

• 物质功能分类: 医药中间体 - 杂环化合物
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 中文名称: 5-丁基-1h,3h,5h-嘧啶-2,4,6-三酮
• 英文名称: 5-butyl-pyrimidine-2,4,6-trione
• 英文别名: 5-n-butyl-2,4,6-pyrimidinetrione；5-butylbarbituric acid；n-butylbarbituric acid；5-Butyl-barbitursaeure；5-butyl-1H,3H,5H-pyrimidine-2,4,6-trione；5-Butylbarbitursaeure；5-butyl-1,3-diazinane-2,4,6-trione
• CAS: 1953-33-9
• 化学式: C₈H₁₂N₂O₃
• mdl: MFCD01221478
• 分子量: 184.195
• InChiKey: HTKIZIQFMHVTRJ-UHFFFAOYSA-N

物化性质

• 熔点：
  214 °C
• 密度：
  1.161±0.06 g/cm3(Predicted)
• 溶解度：
  溶于二氯甲烷、乙酸乙酯

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.625
• 拓扑面积：
  75.3
• 氢给体数：
  2
• 氢受体数：
  3

安全信息

• 危险品标志：
  Xi
• 海关编码：
  2933540000

反应信息

• 作为反应物：
  描述：

  5-丁基-1h,3h,5h-嘧啶-2,4,6-三酮 在 N-fluorobis<(trifluoromethyl)sulfonyl>imide 作用下， 以 溶剂黄146 为溶剂， 以90%的产率得到5-fluoro-5-n-butyl-2,4,6-pyrimidinetrione
  参考文献：
  名称：

  Electrophilic fluorination of pharmacologically active 1,3-dicarbonyl compounds

  摘要：

  DOI：

  10.1021/jo00041a039
• 作为产物：
  描述：

  5-butyryl-pyrimidine-2,4,6-trione 在 sodium cyanoborohydride 作用下， 以 溶剂黄146 为溶剂， 反应 1.0h， 以75%的产率得到5-丁基-1h,3h,5h-嘧啶-2,4,6-三酮
  参考文献：
  名称：

  Reduction of isopropylidene acylmalonates, 5-acylbarbituric acids, and 3-acyl-4-hydroxycoumarins to the corresponding alkyl derivatives by sodium cyanoborohydride-acetic acid

  摘要：

  DOI：

  10.1021/jo01311a011

文献信息

• SILANE COUPLING COMPOUNDS AND MEDICAL AND/OR DENTAL CURABLE COMPOSITIONS COMPRISING THE SAME
  申请人：KABUSHIKI KAISHA SHOFU

  公开号：US20190300552A1

  公开（公告）日：2019-10-03

  The present invention relate to a novel silane coupling agent and a medical and/or dental curable composition comprising the same. It is an object of the present invention to provide a novel silane coupling agent that imparts high affinity to a radical polymerizable monomer, thereby imparting high mechanical strength, flexibility and durability when used for a medical and/or dental curable composition, and an inorganic filler surface-treated with the novel silane coupling agent and a novel medical and/or dental curable composition. A silane coupling agent including repeating units such as a urethane bond and polyethylene glycol (ether bond) at a specific position is used.

  本发明涉及一种新型硅烷偶联剂以及包括该偶联剂的医用和/或牙科可固化组合物。本发明的目的是提供一种新型硅烷偶联剂，使其对自由基聚合单体具有高亲和力，从而在用于医用和/或牙科可固化组合物时赋予高机械强度、柔韧性和耐久性，并且包括经新型硅烷偶联剂表面处理的无机填料和新型医用和/或牙科可固化组合物。该硅烷偶联剂包括在特定位置具有尿素键和聚乙二醇（醚键）等重复单元。
• POLARIZING PLATE PROTECTIVE FILM, POLARIZING PLATE, AND DISPLAY DEVICE
  申请人：FUJIFILM Corporation

  公开号：US20170226317A1

  公开（公告）日：2017-08-10

  A polarizing plate protective film which prevents deterioration of polarization performance in a high temperature, high humidity environment, and a polarizing plate and display device using the film including a compound represented by the following General Formula (I). (X-L n z General Formula (I) X represents a formyl group, a boronic acid group, or a group represented by the following General Formula (I-B) or a group represented by the following General Formula (I-C), where L represents a single bond or divalent linking group, and n represents an integer equal to or greater than 2. When n is 2, Z represents a single bond or a divalent group, and when n≧3, Z represents an n-valent group. R A and R B represent an alkyl group, a cycloalkyl group, an aryl group, or an acyl group. R A and R B may be bonded to each other to form a ring. * represents a bond to be bonded to L.

  一种偏光板保护膜，可防止在高温高湿环境中偏光性能的恶化，以及使用包括下述一般式（I）所代表的化合物的偏光板和显示装置。 （X-L n z 一般式（I） X代表甲酰基、硼酸基或由下述一般式（I-B）所代表的基团或由下述一般式（I-C）所代表的基团，其中L代表单键或二价连接基团，n代表大于或等于2的整数。当n为2时，Z代表单键或二价基团，当n≧3时，Z代表n价基团。 RA和RB代表烷基、环烷基、芳基或酰基。RA和RB可以相互连接形成环。*代表要连接到L的键。
• Kharasch reaction: Cu-catalyzed and non-Kharasch metal-free peroxidation of barbituric acids
  作者：Oleg V. Bityukov、Vera A. Vil'、George K. Sazonov、Andrey S. Kirillov、Nikita V. Lukashin、Gennady I. Nikishin、Alexander O. Terent'ev

  DOI：10.1016/j.tetlet.2019.02.042

  日期：2019.3

  It was discovered that the Kharasch peroxidation of barbituric acids proceeds both with a Cu-catalyst and without a metal catalyst. Despite the presence of possible thermal-initiated side oxidation pathways, α-tert-butylperoxybarbiturates were selectively prepared from substituted barbituric acids and tert-butyl hydroperoxide.

  已发现巴比妥酸的Kharasch过氧化在有铜催化剂和没有金属催化剂的情况下都进行。尽管可能热引发侧氧化途径的存在下，α-叔-butylperoxybarbiturates被选择性地从取代的巴比土酸和制备叔丁基过氧化氢。
• Mono C-alkylation and mono C-benzylation of barbituric acids through zinc/acid reduction of acyl, benzylidene, and alkylidene barbiturate intermediates
  作者：Branko S. Jursic、Edwin D. Stevens

  DOI：10.1016/s0040-4039(03)00111-4

  日期：2003.3

  Through systematic exploration of reaction conditions, very efficient preparative procedures for obtaining large quantities of substituted 5-alkyl and 5-benzylbarbituric acids were developed. The procedure involves a two step preparation in which the second step is zinc dust/acid reduction. For preparation of 5-alkylbarbiturates, the first step is the preparation of either 5-acyl or 5-alkylidenebarbiturate

  通过系统地研究反应条件，开发了用于获得大量取代的5-烷基和5-苄基巴比妥酸的非常有效的制备方法。该过程包括两步准备，其中第二步是还原锌粉/酸。对于制备5-烷基巴比妥酸酯，第一步是制备5-酰基或5-亚烷基巴比妥酸酯。如果5-苄基巴比妥酸酯是目标产物，则第一步包括制备5-亚苄基。无论第一步的性质如何，所有反应的合成产率均约为90％，而分离和纯化仅涉及结晶。
• DENTAL CEMENT
  申请人：KURARAY NORITAKE DENTAL INC.

  公开号：US20170135909A1

  公开（公告）日：2017-05-18

  The present invention provides a dental cement that exhibits excellent adhesiveness to dentin and has high mechanical strength. The present invention relates to a multi-part dental cement containing: an asymmetric acrylamide-methacrylic acid ester compound (a); an acid group-containing (meth)acrylic polymerizable monomer (b); a hydrophobic crosslinkable polymerizable monomer (c); a chemical polymerization initiator (d); and a filler (e). The asymmetric acrylamide-methacrylic acid ester compound (a) is represented by the following general formula (1): where X is an optionally substituted, linear or branched C 1 to C 6 aliphatic group or an optionally substituted aromatic group, the aliphatic group is optionally interrupted by at least one linking group selected from the group consisting of —O—, —S—, —CO—, —CO—O—, —O—CO—, —NR 1 —, —CO—NR 1 —, —NR 1 —CO—, —CO—O—NR 1 —, —O—CO—NR 1 —, and —NR 1 —CO—NR 1 —, and R 1 is a hydrogen atom or an optionally substituted, linear or branched C 1 to C 6 aliphatic group.

  本发明提供一种对牙本质具有良好粘附性并具有高机械强度的牙科水泥。本发明涉及一种含有多部分的牙科水泥，包括：一种不对称的丙烯酰胺-甲基丙烯酸酯化合物（a）；一种含酸基的（甲基）丙烯酸聚合单体（b）；一种疏水性交联聚合单体（c）；一种化学聚合引发剂（d）；和一种填料（e）。不对称的丙烯酰胺-甲基丙烯酸酯化合物（a）由以下一般式（1）表示：其中X是可选择取代的线性或支链的C1到C6脂肪族基团或可选择取代的芳香族基团，脂肪族基团可选择地被来自由—O—、—S—、—CO—、—CO—O—、—O—CO—、—NR1—、—CO—NR1—、—NR1—CO—、—CO—O—NR1—、—O—CO—NR1—和—NR1—CO—NR1—组成的至少一种连接基团中断，且R1是氢原子或可选择取代的线性或支链的C1到C6脂肪族基团。