(E)-4-methoxy-6-(4-methoxystyryl)-5,6-dihydro-2H-pyran-2-one | 3328-60-7

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 卡瓦内酯
• 英文名称: (E)-4-methoxy-6-(4-methoxystyryl)-5,6-dihydro-2H-pyran-2-one
• 英文别名: (E)-6-(4-methoxystyryl)-4-methoxy-5,6-dihydropyran-2-one；5,6-dihydroyangonin；4-methoxy-2-[(E)-2-(4-methoxyphenyl)ethenyl]-2,3-dihydropyran-6-one
• CAS: 3328-60-7
• 化学式: C₁₅H₁₆O₄
• 分子量: 260.29
• InChiKey: AYXCIWVJOBQVFH-VMPITWQZSA-N

物化性质

• 熔点：
  119-122°C
• 溶解度：
  可溶于氯仿（少许）、甲醇（少许）

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  44.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (E)-4-methoxy-6-(4-methoxystyryl)-5,6-dihydro-2H-pyran-2-one 在 5%-palladium/activated carbon 、 氢气 、 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 甲醇 、 甲苯 为溶剂， 反应 3.5h， 生成 4-甲氧基-6-[2-(4-甲氧基苯基)乙基]吡喃-2-酮
  参考文献：
  名称：

  Heck-Matsuda 芳基化作为获取从远志、Piper methysticum 和类似物中分离的 Kavalactones 的策略

  摘要：

  在此，我们使用 Heck 描述了从远志（即 1、4 和 7）中分离的三种生物活性吡喃酮和从 Piper methysticum 中分离出的 8 种（即 8-10、13、15 和 18-20）的全合成– 松田芳基化作为关键策略。通过使用不同的芳烃重氮四氟硼酸盐对该方法的评估表明，当进行芳基化的烯烃具有乙烯基-2-吡喃酮结构单元而不是乙烯基二氢-2-吡喃酮部分时，Heck 芳基化更有效。许多被测烯烃的 Heck-Matsuda 芳基化反应以实用的方式进行，具有完全的区域和立体控制。

  DOI：

  10.1002/ejoc.201200308
• 作为产物：
  描述：

  在 potassium carbonate 作用下， 以 甲醇 、 丙酮 为溶剂， 反应 3.0h， 生成 (E)-4-methoxy-6-(4-methoxystyryl)-5,6-dihydro-2H-pyran-2-one
  参考文献：
  名称：

  A rapid and diverse construction of 6-substituted-5,6-dihydro-4-hydroxy-2-pyrones through double Reformatsky reaction

  摘要：

  A rapid and diverse synthesis of biologically important 6-substituted-5,6-dihydro-4-hydroxy-2-pyrones through a double Reformatsky reaction of aldehydes to delta-hydroxy-beta-ketoesters followed by lactonization is described. Due to the high functional group tolerance and reaction site discrimination between aldehyde, nitrile, and ester groups in the substrate, the protocol can provide the dihydropyrones with bromo, nitro, carboxylic acid, and beta-ketoester groups, which are suitable for the further derivatizations. Furthermore, the protocol has been successfully applied to the rapid total synthesis of naturally occurring Yangonin. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2013.10.079

文献信息

• Highly Regio- and Stereoselective Heck Reaction of Allylic Esters with Arenediazonium Salts: Application to the Synthesis of Kavalactones
  作者：Angélica Venturini Moro、Flávio Sega Pereira Cardoso、Carlos Roque Duarte Correia

  DOI：10.1021/ol901416e

  日期：2009.8.20

  highly efficient palladium-catalyzed Heck reaction of allylic esters with arenediazonium salts is described. The reaction proceeds under mild conditions, with excellent to total regio- and stereochemical control and with retention of the traditional leaving group. Furthermore, the generality of the present methodology is illustrated by the short total synthesis of the natural kavalactones, yangonine,

  描述了烯丙基酯与槟榔重氮盐的高效钯催化的Heck反应。反应在温和的条件下进行，对区域和立体化学的控制极好，并且保留了传统的离去基团。此外，本方法的一般性通过天然的kavalactones，仰光宁，（±）-甲基美替丁素和（±）-二氢甲基美替丁素的短的全合成来说明。
• Towards synthesis of kavalactone derivatives
  作者：Patrícia A. Amaral、Nicolas Gouault、Myriam Le Roch、Vera L. Eifler-Lima、Michèle David

  DOI：10.1016/j.tetlet.2008.07.102

  日期：2008.11

  Kavalactone derivatives were synthesized using a Heck reaction of the 4-methoxy-6-vinyl-5,6-dihydropyran-2-one with aryl iodides. The Suzuki-Miyaura reaction of an aryl boronic acid and (Z)-4-methoxy-6-(2-iodovinyl)-5,6-dihydropyran-2-one has also been successfully used to produce both Z and E isomers of lactones. (C) 2009 Elsevier Ltd. All rights reserved.
• THERAPEUTIC COMPOUNDS AND METHODS OF USE THEREOF
  申请人：KUALITY HERBCEUTICS LLC

  公开号：US20180134679A1

  公开（公告）日：2018-05-17

  The invention provides compounds that are useful for treating or preventing cancer.
• [EN] THERAPEUTIC COMPOUNDS AND METHODS OF USE THEREOF<br/>[FR] COMPOSÉS THÉRAPEUTIQUES ET LEURS MÉTHODES UTILISATION
  申请人：KUALITY HERBCEUTICS LLC

  公开号：WO2016179587A1

  公开（公告）日：2016-11-10

  The invention provides compounds that are useful for treating or preventing cancer.
• A rapid and diverse construction of 6-substituted-5,6-dihydro-4-hydroxy-2-pyrones through double Reformatsky reaction
  作者：Masahiro Mineno、Yasuhiro Sawai、Kazuaki Kanno、Naotaka Sawada、Hideya Mizufune

  DOI：10.1016/j.tet.2013.10.079

  日期：2013.12

  A rapid and diverse synthesis of biologically important 6-substituted-5,6-dihydro-4-hydroxy-2-pyrones through a double Reformatsky reaction of aldehydes to delta-hydroxy-beta-ketoesters followed by lactonization is described. Due to the high functional group tolerance and reaction site discrimination between aldehyde, nitrile, and ester groups in the substrate, the protocol can provide the dihydropyrones with bromo, nitro, carboxylic acid, and beta-ketoester groups, which are suitable for the further derivatizations. Furthermore, the protocol has been successfully applied to the rapid total synthesis of naturally occurring Yangonin. (C) 2013 Elsevier Ltd. All rights reserved.