4-hydroxy-6-(3,4,5-trimethoxy-phenyl)-2H-pyran-2-one | 256408-79-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 4-hydroxy-6-(3,4,5-trimethoxy-phenyl)-2H-pyran-2-one
• 英文别名: 4-Hydroxy-6-(3,4,5-trimethoxyphenyl)pyran-2-one
• CAS: 256408-79-4
• 化学式: C₁₄H₁₄O₆
• 分子量: 278.262
• InChiKey: FQKATYILGWWIMS-UHFFFAOYSA-N

物化性质

• 熔点：
  185-188 °C
• 沸点：
  445.8±45.0 °C(Predicted)
• 密度：
  1.326±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.21
• 拓扑面积：
  74.2
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  4-hydroxy-6-(3,4,5-trimethoxy-phenyl)-2H-pyran-2-one 在 四丁基溴化铵 、 potassium acetate 、 palladium diacetate 、 potassium carbonate 作用下， 以 N,N-二甲基甲酰胺 、 丙酮 为溶剂， 反应 16.0h， 生成 3-(3,4,5-trimethoxyphenyl)pyrano[4,3-c]isochromen-1(6H)-one
  参考文献：
  名称：

  Pd-catalysed intramolecular regioselective arylation of 2-pyrones, pyridones, coumarins and quinolones by C–H bond functionalization

  摘要：

  The intramolecular arylation of 2-pyrones, 2-pyridones, coumarins and quinolones is reported using Pd-II precatalyst sources without added phosphine ligands. The excellent yields and convenient reagents enables the formation of various analogues containing these moieties, and access to potential biologically active candidates. Stoichiometric studies were carried out to provide an insight into the oxidation addition step. A switch in regioselectivity, together with a hydrodebromination process, was observed in the case of a 3-bromo-2-pyrone. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2014.04.029
• 作为产物：
  描述：

  5-hydroxy-3-oxo-5-(3,4,5-trimethoxy-phenyl)-pent-4-enoic acid ethyl ester 在 氢氧化钾 、 三氟乙酸 作用下， 以 乙醇 为溶剂， 反应 2.5h， 生成 4-hydroxy-6-(3,4,5-trimethoxy-phenyl)-2H-pyran-2-one
  参考文献：
  名称：

  5-羟基-3-氧opent-4-烯酸的双钾盐的合成及其在有效制备4-羟基-2H-吡喃-2-酮和其他杂环中的用途。

  摘要：

  可以将5-羟基-3-oxopent-4-enoic酸酯有效地转化为相应的5-hydroxy-3-oxopent-4-enoic酸的稳定双钾盐，敏感酸从该盐中就地释放出来，后者在温和条件下转化为取代的4-羟基-2H-吡喃-2-酮，吡唑和异恶唑；该方法的效率通过两种天然存在的吡喃酮的首次合成得到证明。

  DOI：

  10.1039/b611105j

文献信息

• Pd/Pivalic Acid Mediated Direct Arylation of 2-Pyrones and Related Heterocycles
  作者：Leticia M. Pardo、Aisling M. Prendergast、Marie-T. Nolan、Eoin Ó Muimhneacháin、Gerard P. McGlacken

  DOI：10.1002/ejoc.201500262

  日期：2015.6

  Direct arylation represents a favourable alternative to traditional cross-coupling reactions and has found widespread use with simple aryls and robust heterocycles. Herein a direct arylation protocol has been optimised and applied to more delicate, privileged biological motifs. The intramolecular direct arylation of 2-pyrones, 2-coumarins, 2-pyridones and 2-quinolones occurs in very good to excellent

  直接芳基化代表了传统交叉偶联反应的有利替代方案，并已广泛用于简单的芳基和稳健的杂环。在此，直接芳基化方案已被优化并应用于更精细、特权的生物基序。使用 Pd0 源和新戊酸作为关键添加剂，2-吡喃酮、2-香豆素、2-吡啶酮和 2-喹诺酮的分子内直接芳基化以非常好的收率发生。还进行了初步的机械调查。
• The total synthesis of (±)-arisugacin A
  作者：Richard P Hsung、Kevin P Cole、Luke R Zehnder、Jiashi Wang、Lin-Li Wei、Xiao-Fang Yang、Heather A Coverdale

  DOI：10.1016/s0040-4020(02)01524-7

  日期：2003.1

  A 20-step total synthesis of (±)-arisugacin A with an overall yield of 2.1% is described here in detail. This synthesis features a formal [3+3] cycloaddition reaction of α,β-unsaturated iminium salts with 6-aryl-4-hydroxy-2-pyrones through a highly stereoselective 6π-electron electrocyclic ring-closure of 1-oxatriene. A strategic dihydroxylation–deoxygenation protocol leading to the desired angular

  本文详细描述了20步合成（±）-芦荟素A，总产率为2.1％。该合成的特征在于，α，β-不饱和亚胺盐与6-芳基-4-羟基-2-吡喃酮通过1-氧杂三烯的高度立体选择性6π-电子电环闭环的形式[3 + 3]环加成反应。开发了一种战略性的二羟基化-脱氧方案，以实现所需的角C12a-OH，这是导致最终完成阿瑞新霉素A合成的关键步骤。这种合成努力还导致了一个有趣且出乎意料的逆向羟醛-羟醛序列。 AB环。
• Antitumor agents 270. Novel substituted 6-phenyl-4H-furo[3,2-c]pyran-4-one derivatives as potent and highly selective anti-breast cancer agents
  作者：Yizhou Dong、Qian Shi、Kyoko Nakagawa-Goto、Pei-Chi Wu、Susan L. Morris-Natschke、Arnold Brossi、Kenneth F. Bastow、Jing-Yu Lang、Mien-Chie Hung、Kuo-Hsiung Lee

  DOI：10.1016/j.bmc.2009.11.049

  日期：2010.1

  synthesized and evaluated as novel anti-breast cancer agents. Compounds 10–13, 23, 25, and 27 showed potent inhibition against the SK-BR-3 breast cancer cell line. Importantly, 25 and 27 showed the highest cancer cell line selectivity, being approximately 100–250-fold more potent against SK-BR-3 (ED50 0.28 and 0.44 μM, respectively) compared with other cancer cell lines tested. In addition, 25 displayed

  6-Phenyl-4 H -furo [3,2 - c ]pyran-4-one 衍生物基于新 tashinlactone ( 1 ) 被合成并评估为新型抗乳腺癌药物。化合物10-13，23，25，和27显示出针对SK-BR-3乳腺癌细胞系有效抑制。重要的是，25和27显示出最高的癌细胞系选择性，与其他测试的癌细胞系相比，对 SK-BR-3（ED 50分别为 0.28 和 0.44 μM）的效力大约高出 100-250 倍。此外，25对正常乳腺细胞系 184A1 和 MCF10A 显示出低细胞毒性。化合物25和27值得在我们持续的项目中进一步研究，以生成和开发选择性抗乳腺癌药物。
• A Formal [3 + 3] Cycloaddition Reaction. Improved Reactivity Using α,β-Unsaturated Iminium Salts and Evidence for Reversibility of 6π-Electron Electrocyclic Ring Closure of 1-Oxatrienes
  作者：Hong C. Shen、Jiashi Wang、Kevin P. Cole、Michael J. McLaughlin、Christopher D. Morgan、Christopher J. Douglas、Richard P. Hsung、Heather A. Coverdale、Aleksey I. Gerasyuto、Juliet M. Hahn、Jia Liu、Heather M. Sklenicka、Lin-Li Wei、Luke R. Zehnder、Craig A. Zificsak

  DOI：10.1021/jo020688t

  日期：2003.3.1

  A detailed account regarding a formal [3 + 3] cycloaddition method using 4-hydroxy-2-pyrones and 1,3-diketones is described here. This formal cycloaddition reaction or annulation reaction is synthetically useful for constructing 2H-pyranyl heterocycles. The usage of alpha,beta-unsaturated iminium salts is significant in controlling competing reaction pathways to give exclusively 2H-pyrans. Most significantly, experimental evidence is provided to support the mechanism of this reaction that involves a sequential Knoevenagel condensation and a reversible 6pi-electron electrocyclic ringclosure of 1-oxatrienes.
• Synthesis and UV Studies of A Small Library of 6-Aryl-4-hydroxy-2-pyrones. A Relevant Structural Feature for the Inhibitory Property of Arisugacin Against Acetylcholinesterase
  作者：Christopher J. Douglas、Heather M. Sklenicka、Hong C. Shen、David S. Mathias、Shane J. Degen、Geoffrey M. Golding、Christopher D. Morgan、Regina A. Shih、Kristen L. Mueller、Lisa M. Scurer、Erik W. Johnson、Richard P. Hsung

  DOI：10.1016/s0040-4020(99)00847-9

  日期：1999.11

  4-Hydroxypyrones belong to an important class of compounds not only because of their medicinal significance, but also because they represent a common structural feature among natural products that ale biologically relevant. We describe here preparations of a small library of 6-aryl-4-hydroxy-pyrones which represent structural analogs of the DE-ring of arisugacin, a potent and selective inhibitor against acetylcholinesterase. Given the structural significance of the DE-ring in the inhibitory activity of arisugacin, chemical shifts of relevant protons on the pyrone ring are compared, and distinct features in UV absorptions of these 6-aryl-4-hydroxy-pyrones are described. (C) 1999 Elsevier Science Ltd. All rights reserved.