3-benzoyl-6-methoxy-2H-chromen-2-one

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3-benzoyl-6-methoxy-2H-chromen-2-one
• 英文别名: 6-methoxy-3-(phenylcarbonyl)-2H-chromen-2-one；3-benzoyl-6-methoxychromen-2-one
• 化学式: C₁₇H₁₂O₄
• 分子量: 280.28
• InChiKey: IIUIPOQYIBJROA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  21
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.06
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3-benzoyl-6-methoxy-2H-chromen-2-one 在 三溴化硼 作用下， 以 二氯甲烷 为溶剂， 反应 48.0h， 生成 6-hydroxy-3-(phenylcarbonyl)-2H-chromen-2-one
  参考文献：
  名称：

  Synthesis and Electrochemical and Biological Studies of Novel Coumarin–Chalcone Hybrid Compounds

  摘要：

  A series of novel hydroxy-coumarin chalcone hybrid compounds 2a-i has been synthesized by employing a simple and efficient methodology. An electrochemical characterization using cyclic voltammetry and ESR spectroscopy were carried out to characterize the oxidation mechanism for the target compounds. The antioxidant capacity and reactivity were determined by ORAC and ESR assays, respectively. Biological assays were assessed to evaluate the cytotoxicity and cytoprotection capacity against ROS/RNS on BAEC. The results revealed that all tested compounds present ORAC values that are much higher than other well-known antioxidant compounds such as quercetin and catechin. Compound 2e showed the highest ORAC value (14.1) and also presented a low oxidation potential, good scavenging capacity against hydroxyl radicals, low cytotoxicity, and high cytoprotective activity.

  DOI：

  10.1021/jm400546y
• 作为产物：
  描述：

  2-羟基-5-甲氧基苯甲醛 、 苯甲酰乙酸乙酯 在 哌啶 、 溶剂黄146 作用下， 以 乙醇 为溶剂， 生成 3-benzoyl-6-methoxy-2H-chromen-2-one
  参考文献：
  名称：

  香豆素的光催化区域选择性和位点选择性烷基化：获得 3-氨基和 4-氨基二氢香豆素

  摘要：

  功能化的二氢香豆素，包括用作 α- 和 β- 氨基酸衍生物的 3-氨基-和 4-氨基二氢香豆素，已经使用香豆素的一步位点和区域选择性烷基胺化合成。这种转化提供了 35 个例子，收率为 24% 到 81%。

  DOI：

  10.1002/adsc.202201391

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。
• Unexpected Hydrobromic Acid-Catalyzed CC Bond-Forming Reactions and Facile Synthesis of Coumarins and Benzofurans Based on Ketene Dithioacetals
  作者：Hongjuan Yuan、Mang Wang、Yingjie Liu、Lili Wang、Jun Liu、Qun Liu

  DOI：10.1002/chem.201002107

  日期：2010.12.3

  Hydrobromic acid was found to be a unique catalyst in CC bond‐forming reactions with ketene dithioacetals. Distinctly different from other acids (including Lewis and Brønsted acids), the remarkable catalytic performance of hydrobromic acid in catalytic amounts was observed in the “acid”‐catalyzed reactions of readily available functionalized ketene dithioacetals 1 with various electrophiles. Under

  氢溴酸被发现是在C独特催化剂与烯酮二硫C键形成反应。与其他酸（包括路易斯酸和布朗斯台德酸）明显不同，氢溴酸在催化量上的显着催化性能在易于获得的官能化乙烯酮二硫缩醛1与各种亲电试剂的“酸”催化反应中观察到。在0.1当量的氢溴酸的催化下，1与羰基化合物2 a – l的反应生成多官能化的戊-1,4-二烯3或共轭二烯4产量高到极好。该反应在乙烯酮二硫缩醛1和羰基化合物2上均具有宽范围的取代基。这种有效的CC键形成方法的应用是在温和的，无金属的条件下，通过氢溴酸1与水杨醛2 m - o和对苯醌6 a - d的反应生成香豆素5和苯并呋喃7。， 分别。根据抗衡离子的性质，形成了一种新的反应性物种，即一种硫稳定的碳鎓叶立德，这被提议作为氢溴酸独特催化的关键中间体。
• DENTAL ADHESIVE
  申请人：KURARAY NORITAKE DENTAL INC.

  公开号：US20170196778A1

  公开（公告）日：2017-07-13

  The present invention provides a dental adhesive exhibiting excellent initial bond strength and bond durability to both enamel and dentin. The present invention relates to a dental adhesive containing: an asymmetric acrylamide-methacrylic acid ester compound (a); an acid group-containing (meth)acrylic polymerizable monomer (b); and a water-soluble polymerizable monomer (c). 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.

  本发明提供了一种牙科粘接剂，具有优异的初始粘接强度和对牙釉质和牙本质的粘接耐久性。本发明涉及一种含有以下成分的牙科粘接剂：不对称丙烯酰胺-甲基丙烯酸酯化合物（a）；含酸基的（甲基）丙烯酸聚合单体（b）；以及水溶性聚合单体（c）。不对称丙烯酰胺-甲基丙烯酸酯化合物（a）由下述一般式（1）表示：其中X是可选择取代的线性或支链状的C1到C6脂肪族基或可选择取代的芳香族基，所述脂肪族基可被来自由—O—、—S—、—CO—、—CO—O—、—O—CO—、—NR1—、—CO—NR1—、—NR1—CO—、—CO—O—NR1—、—O—CO—NR1—和—NR1—CO—NR1—组成的至少一个连接基中断，R1为氢原子或可选择取代的线性或支链状的C1到C6脂肪族基。
• Tunable Phosphine-Triggered Cascade Reactions of MBH Derivatives and 3-Acyl-2<i>H</i>-chromen-2-ones: Highly Selective Synthesis of Diverse Chromenones
  作者：Wei Yuan、Hu-Fei Zheng、Zhi-Hua Yu、Zi-Long Tang、De-Qing Shi

  DOI：10.1002/ejoc.201301358

  日期：2014.1

  Diverse chromenones were synthesized through tunable phosphine-mediated cascade reactions between 3-acyl-2H-chromen-2-ones and Morita–Baylis–Hillman (MBH) derivatives. With different phosphine loadings and reaction temperatures, MBH derivatives act either as C1 or C3 synthons for the construction of potential biologically active 3-dihydrofuran-fused chromen-2-ones, 4-allyl-3-acyl-chromen-2-ones, or

  通过可调膦介导的 3-acyl-2H-chromen-2-ones 和 Morita-Baylis-Hillman (MBH) 衍生物之间的级联反应合成了多种色酮。在不同的膦负载量和反应温度下，MBH 衍生物充当 C1 或 C3 合成子，用于构建潜在的生物活性 3-二氢呋喃稠合 chromen-2-ones、4-allyl-3-acyl-chromen-2-ones，或6H-benzo[c]chromen-6-ones。该方法具有条件温和、后处理简单、底物适用范围广等优点，可有效合成多种色酮衍生物。
• SELF-ADHESIVE DENTAL COMPOSITE RESIN
  申请人：KURARAY NORITAKE DENTAL INC.

  公开号：US20170135910A1

  公开（公告）日：2017-05-18

  The present invention provides a self-adhesive composite resin having excellent adhesiveness to tooth structures and excellent mechanical strength. The present invention relates to a self-adhesive dental composite resin 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 photopolymerization 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.

  本发明提供了一种具有优异粘附性和优异机械强度的自粘合复合树脂。本发明涉及一种自粘合牙科复合树脂，包含：不对称的丙烯酰胺-甲基丙烯酸酯化合物（a）；含酸基的（甲基）丙烯酸聚合单体（b）；疏水性交联聚合单体（c）；光聚合引发剂（d）；和填料（e）。不对称的丙烯酰胺-甲基丙烯酸酯化合物（a）由以下通式（1）表示：其中X是可选取代的线性或支链的C1至C6脂肪族基团或可选取代的芳香族基团，脂肪族基团可由以下组成的至少一种连接基团中断：—O—、—S—、—CO—、—CO—O—、—O—CO—、—NR1—、—CO—NR1—、—NR1—CO—、—CO—O—NR1—、—O—CO—NR1—和—NR1—CO—NR1—，R1为氢原子或可选取代的线性或支链的C1至C6脂肪族基团。