6-(4-chlorophenyl)-4-hydroxy-2H-pyran-2-one | 43053-63-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃
• 英文名称: 6-(4-chlorophenyl)-4-hydroxy-2H-pyran-2-one
• 英文别名: 6-(4-chlorophenyl)-4-hydroxypyran-2-one
• CAS: 43053-63-0
• 化学式: C₁₁H₇ClO₃
• 分子量: 222.628
• InChiKey: HBGJRQFNWNBQOR-UHFFFAOYSA-N

物化性质

• 熔点：
  292 °C (decomp)
• 沸点：
  380.0±42.0 °C(Predicted)
• 密度：
  1.487±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  15
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  6-(4-chlorophenyl)-4-hydroxy-2H-pyran-2-one 在 sodium hydroxide 、 镍 作用下， 生成 3-hydroxy-5-phenylpentanoic acid
  参考文献：
  名称：

  Gorgues,A., Bulletin de la Societe Chimique de France, 1973, p. 1293 - 1295

  摘要：

  DOI：
• 作为产物：
  描述：

  1H-苯并三唑-1-基(4-氯苯基)甲酮 在 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 2.25h， 生成 6-(4-chlorophenyl)-4-hydroxy-2H-pyran-2-one
  参考文献：
  名称：

  Facile Syntheses of 2,2-Dimethyl-6-(2-oxoalkyl)-1,3-dioxin-4-ones and the Corresponding 6-Substituted 4-Hydroxy-2-pyrones

  摘要：

  A variety of 2,2-dimethyl-6-(2-oxoalkyl)-1,3-dioxin-4-ones 5a-l and the corresponding 6-substituted 4-hydroxy-2-pyrones 3a-l were prepared in high yields under mild reaction conditions by the reaction of 2,2,6-trimethyl-1,3-dioxin-4-one 4 with 1-acylbenzotriazoles 9 in the presence of LDA followed by thermal cyclization of 5a-l to 3a-1. Synthesis of novel 6-(1-benzoylalkyl)-2,2-dimethyl-1,3-dioxin-4-ones 12a-c was achieved by alkylation of dioxinone 5a and their subsequent cyclization gave 5-alkyl-4-hydroxy-2-pyrones 13a-c.

  DOI：

  10.1021/jo050307m

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。
• Pyrone derivatives as protease inhibitors and antiviral agents
  申请人：Warner-Lambert Company

  公开号：US06005103A1

  公开（公告）日：1999-12-21

  The present invention relates to novel tri- and tetrasubstituted pyrones and related structures which potently inhibit the HIV aspartyl protease blocking HIV infectivity. The pyrone derivatives are useful in the development of therapies for the treatment of bacterial and viral infections and diseases, including AIDS. The present invention is also directed to methods of synthesis of multifunctionalized pyrones and of related structures.

  本发明涉及一种新型三取代和四取代的吡喃酮及其相关结构，其具有强烈的抑制HIV天冬氨酸蛋白酶，从而阻止HIV感染性的作用。吡喃酮衍生物可用于开发治疗细菌和病毒感染和疾病，包括艾滋病的疗法。本发明还涉及多功能吡喃酮和相关结构的合成方法。
• Multisubstituted naphthalene synthesis from 4-hydroxy-2-pyrones through [4+2] cycloaddition with <i>o</i>-silylaryl triflates
  作者：Koyo Numata、Shinya Tabata、Akihiro Kobayashi、Suguru Yoshida

  DOI：10.1039/d3nj03831a

  日期：——

  for multisubstituted naphthalenes from 4-hydroxy-2-pyrones through cycloaddition with aryne intermediates is disclosed. Various highly functionalized 2-pyrones were synthesized through 4-hydroxy-2-pyrones in short steps. The resulting 2-pyrones reacted smoothly with a wide range of aryne intermediates generated from o-silylaryl triflates to provide multisubstituted naphthalenes by the Diels–Alder reaction

  公开了一种通过与芳炔中间体环加成从4-羟基-2-吡喃酮有效合成多取代萘的方法。通过4-羟基-2-吡喃酮在短时间内合成了各种高功能化的2-吡喃酮。所得的 2-吡喃酮与由邻甲硅烷基芳基三氟甲磺酸酯生成的各种芳基中间体顺利反应，通过 Diels-Alder 反应和随后的脱羧芳构化提供多取代的萘​​。2-吡喃酮的芳炔反应通过与4-叠氮基-2-吡喃酮的三唑形成结合，用于合成具有1,2,3-三唑部分的多种萘。
• Bi(OTf)₃-promoted cascade annulation of hydroxy-pyranones and unsaturated γ-ketoesters for the construction of polycyclic bridged pyrano-furopyranones
  作者：Akshay B. Rathod、Balasaheb R. Borade、Pooja I. Sambherao、Ravindar Kontham

  DOI：10.1039/d3ob01862h

  日期：——

  three dimensional polycyclic bridged chromano-furopyranones and pyrano-furopyranones (closely related to bioactive natural products) via bismuth(III)-catalyzed cascade annulation of hydroxy-pyranones and unsaturated γ-ketoesters is presented. This process involves intermolecular Michael addition, intramolecular hemiketalization, lactonization, formation of one C–C bond and two C–O bonds, rings, and contiguous

  提出了一种通过铋（ III ）催化羟基吡喃酮和不饱和γ-酮酯的级联环化构建复杂三维多环桥联色并呋喃并吡喃酮和吡喃并呋喃吡喃酮（与生物活性天然产物密切相关）的有效方案。这一过程涉及分子间迈克尔加成、分子内半缩酮化、内酯化、形成一个 C-C 键和两个 C-O 键、环和连续的立体中心。
• AMINOMETHYLENE DERIVATIVES AND ULTRAVIOLET ABSORBER COMPRISING THE SAME
  申请人：CHEMIPRO KASEI KAISHA, LIMITED

  公开号：EP0950655A1

  公开（公告）日：1999-10-20

  The present invention provides an aminomethylene derivative represented by general formula (I): wherein A is a cyclic oxo group selected from the group consisting of following general formulae (a), (b), (c), (d) and (e): wherein R1, R2, R3, R4 and R5 each independently represent H, an alkyl group or the like; R6, R7 and R8 each independently represent an alkyl group or the like; R1 and R2 or R7 and R8 may combine with each other to form a tetramethylene group or the like; R represents an alkyl group optionally containing OH or O; and n is an integer of 0 to 4, a process for the same, and the use thereof. The derivatives have an excellent ultraviolet absorption ability and a high optical stability.

  本发明提供一种由通式(I)表示的亚氨基亚甲基衍生物： 其中 A 是选自以下通式（a）、（b）、（c）、（d）和（e）所组成的组的环状氧代基团： 其中 R1、R2、R3、R4 和 R5 各自独立地代表 H、烷基或类似基团；R6、R7 和 R8 各自独立地代表烷基或类似基团；R1 和 R2 或 R7 和 R8 可相互结合形成四亚甲基或类似基团；R 代表任选含有 OH 或 O 的烷基；n 为 0 至 4 的整数。这些衍生物具有出色的紫外线吸收能力和较高的光学稳定性。