3-benzoyl-8-methoxy-2H-chromen-2-one | 77819-95-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3-benzoyl-8-methoxy-2H-chromen-2-one
• 英文别名: 3-benzoyl-8-methoxychromen-2-one
• CAS: 77819-95-5
• 化学式: C₁₇H₁₂O₄
• mdl: MFCD01250456
• 分子量: 280.28
• InChiKey: XMULXKFGESYAEG-UHFFFAOYSA-N

物化性质

• 熔点：
  147 °C
• 沸点：
  492.9±45.0 °C(Predicted)
• 密度：
  1.296±0.06 g/cm3(Predicted)

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-8-methoxy-2H-chromen-2-one 在 吡啶 、 sodium tetrahydroborate 、 双氧水 、 四丁基碘化铵 作用下， 以 二氯甲烷 、 水 为溶剂， 反应 25.0h， 生成 C₁₆H₁₄O₃
  参考文献：
  名称：

  氧化脱羧次碘酸铵催化二氢苯并呋喃合成

  摘要：

  在氧化条件下催化使用季铵碘化物可以通过原位形成的次碘酸铵物质促进的脱羧氧化环醚化序列将容易获得的 β-酮内酯直接转化为二氢苯并呋喃。

  DOI：

  10.1039/d2ob00463a
• 作为产物：
  描述：

  苯甲酰乙酸乙酯 、 邻香草醛 在 哌啶 作用下， 反应 0.08h， 以99%的产率得到3-benzoyl-8-methoxy-2H-chromen-2-one
  参考文献：
  名称：

  Solvent-Free Coumarin Synthesis

  摘要：

  报告介绍了在无溶剂条件下通过 Pechmann 和 Knoevenagel 缩合反应合成香豆素的过程，该过程可实现废物最小化、操作简单化和产品加工简易化。

  DOI：

  10.1246/cl.2001.110

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。
• 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。
• 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。
• Enantioselective Synthesis of Polysubstituted Benzopyrano[3,4-<i>c</i>]pyrrolidine Frameworks via [3 + 2] Cycloaddition of Azomethine Ylides and Coumarin Derivatives
  作者：Geng-Hua Chang、Chein-Yi Wang、G. Madhusudhan Reddy、Yi-Ling Tsai、Wenwei Lin

  DOI：10.1021/acs.joc.6b02041

  日期：2016.10.21

  benzopyrano[3,4-c]pyrrolidine derivatives via organocatalyzed [3 + 2] cycloaddition has been achieved. Cinchona alkaloid-derived organocatalysts as Brønsted bases have been examined for this asymmetric cycloaddition of o-hydroxy aromatic aldimines with 3-substituted coumarins. An unexpected rearrangement of the quaternary acyl moiety in the products resulted in an in situ protection of the o-hydroxy group.

  通过有机催化的[3 + 2]环加成反应实现了对苯并吡喃并[3,4- c ]吡咯烷衍生物的对映选择性合成。已经检查了金鸡纳生物碱衍生的有机催化剂作为布朗斯台德碱，该邻位羟基芳族醛亚胺与3-取代的香豆素的不对称环加成反应。产物中季酰基部分的意外重排导致原位保护邻羟基。
• Synthesis of 3-substituted Coumarins: An Efficient Green Approach Using L-proline as Catalyst in Triethanolamine Medium
  作者：Devulapally Srikrishna、Syed Tasqeeruddin、Pramod Kumar Dubey

  DOI：10.2174/1570178611666140512215136

  日期：2014.6

  3-Substituted coumarins were synthesized very efficiently, using Knoevenagel method from salicylaldehydes 1 and active methylene compounds 2 under green conditions. The effect of catalyst and solvent on this condensation was studied. L-proline was found to be the best catalyst and triethanolamine the best reaction medium for this reaction.

  在绿色条件下，采用 Knoevenagel 方法从水杨醛 1 和活性亚甲基化合物 2 非常高效地合成了 3-取代香豆素。研究了催化剂和溶剂对这种缩合反应的影响。结果发现，L-脯氨酸是该反应的最佳催化剂，三乙醇胺是最佳反应介质。