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ethyl 5-(4-methoxybenzoyl)-4-oxo-4H-pyrane-2-carboxylate

中文名称
——
中文别名
——
英文名称
ethyl 5-(4-methoxybenzoyl)-4-oxo-4H-pyrane-2-carboxylate
英文别名
ethyl 5-(4-methoxybenzoyl)-4-oxo-4H-pyran-2-carboxylate;ethyl 5-(4-methoxybenzoyl)-4-oxopyran-2-carboxylate
ethyl 5-(4-methoxybenzoyl)-4-oxo-4H-pyrane-2-carboxylate化学式
CAS
——
化学式
C16H14O6
mdl
——
分子量
302.284
InChiKey
BXTZZYDRTHHQBV-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    2.1
  • 重原子数:
    22
  • 可旋转键数:
    6
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.19
  • 拓扑面积:
    78.9
  • 氢给体数:
    0
  • 氢受体数:
    6

反应信息

  • 作为反应物:
    描述:
    ethyl 5-(4-methoxybenzoyl)-4-oxo-4H-pyrane-2-carboxylate盐酸 作用下, 反应 8.0h, 以92%的产率得到6-(4-methoxyphenyl)-4-oxo-4H-pyrane-2-carboxylic acid
    参考文献:
    名称:
    5-酰基-4-吡喃酮-2-羧酸乙酯和6-芳基-、6-烷基-和5-酰基椰子酸的制备合成
    摘要:
    基于 1-R-2-(二甲基-氨基亚甲基)丁烷-1的缩合,开发了一种简单有效的合成 5-烷酰基-和 5-芳酰基-4-吡喃酮-2-羧酸乙酯的方法,3-二酮,由 1,3-二酮和二甲基甲酰胺二甲基乙缩醛,在 THF 中 NaH 存在下与草酸二乙酯获得。乙基 5-acyl-4-pyrone-2-carboxylates 用于合成 6-R- 和 5-RCO-comanic 酸。
    DOI:
    10.1007/s11172-016-1574-x
  • 作为产物:
    描述:
    1-(对甲氧基苯基)-1,3-丁二酮 在 sodium hydride 作用下, 以 四氢呋喃 、 mineral oil 、 为溶剂, 反应 145.5h, 生成 ethyl 5-(4-methoxybenzoyl)-4-oxo-4H-pyrane-2-carboxylate
    参考文献:
    名称:
    5-酰基-4-吡喃酮-2-羧酸乙酯和6-芳基-、6-烷基-和5-酰基椰子酸的制备合成
    摘要:
    基于 1-R-2-(二甲基-氨基亚甲基)丁烷-1的缩合,开发了一种简单有效的合成 5-烷酰基-和 5-芳酰基-4-吡喃酮-2-羧酸乙酯的方法,3-二酮,由 1,3-二酮和二甲基甲酰胺二甲基乙缩醛,在 THF 中 NaH 存在下与草酸二乙酯获得。乙基 5-acyl-4-pyrone-2-carboxylates 用于合成 6-R- 和 5-RCO-comanic 酸。
    DOI:
    10.1007/s11172-016-1574-x
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文献信息

  • Synthesis of 6-aryl- and 5-aroylcomanic acids from 5-aroyl-2-carbethoxy-4-pyrones via a deformylative rearrangement and ring-opening/ring-closure sequence
    作者:Dmitrii L. Obydennov、Gerd-Volker Röschenthaler、Vyacheslav Ya. Sosnovskikh
    DOI:10.1016/j.tetlet.2013.11.066
    日期:2014.1
    oxalate in the presence of sodium hydride in THF gave ethyl 5-aroyl-4-oxo-4H-pyran-2-carboxylates, from which 4-oxo-6-aryl-4H-pyran-2-carboxylic acids (6-arylcomanic acids) were obtained in high yields via acid-catalyzed deformylative rearrangement. 5-Aroyl-4-oxo-4H-pyran-2-carboxylic acids (5-aroylcomanic acids) were prepared via а ring-opening/ring-closure sequence by the reaction of 5-aroyl-2-carbethoxy-4-pyrones
    1-芳基-2-(二甲基氨基亚甲基)丁烷-1,3-二酮与草酸二乙酯在氢化钠存在下于THF中反应,得到5-芳酰基-4-氧代-4 H-吡喃-2-羧酸乙酯通过酸催化的甲酰基化重排以高收率获得了4-氧代-6-芳基-4 H-吡喃-2-羧酸(6-芳基马来酸)。通过开环/闭环顺序,通过5-芳酰基-2-碳乙氧基-4-吡喃酮的反应,制备5-芳基-4-氧代-4 H-吡喃-2-羧酸(5-芳酰基马甲酸)用哌啶随后进行碱性水解和酸化。
  • 5-Substituted pyranone compounds and their use as pharmaceuticals to
    申请人:Lilly Industries Limited
    公开号:US04364956A1
    公开(公告)日:1982-12-21
    Compounds are described of the formula ##STR1## in which R.sup.1 is COOR.sup.5, CONHR.sup.5, cyano, 5-tetrazolyl or 5-tetrazolylaminocarbonyl, where R.sup.5 is hydrogen or C.sub.1-6 alkyl; R.sup.2 is hydrogen or C.sub.1-6 alkyl; R.sup.3 is a group of the formula R.sup.6 --(Z).sub.m -- where m is O or 1, Z is O, S, SO, SO.sub.2 or CO, and R.sup.6 phenyl optionally substituted by one or more group selected from halogen, C.sub.1-4 alkyl, C.sub.3-6 cycloalkyl, C.sub.1-4 alkoxy, benzyloxy, hydroxy, nitro, C.sub.1-4 alkylthio, C.sub.1-4 alkylsulphinyl, C.sub.1-4 alkylsulphonyl, amino and NHR.sup.7 where R.sup.7 is C.sub.2-6 acyl; and R.sup.4 is hydrogen, C.sub.1-6 alkyl or halogen; and salts thereof. These compounds have pharmaceutical properties and in particular are useful in the treatment of immediate hypersensitivity conditions such as asthma.
    化合物的分子式为##STR1##其中R.sup.1是COOR.sup.5,CONHR.sup.5,氰基,5-四唑基或5-四唑基氨基甲酰,其中R.sup.5是氢或C.sub.1-6烷基;R.sup.2是氢或C.sub.1-6烷基;R.sup.3是R.sup.6--(Z).sub.m--的基团,其中m为O或1,Z为O,S,SO,SO.sub.2或CO,R.sup.6是苯基,可以选择地取代一个或多个来自卤素,C.sub.1-4烷基,C.sub.3-6环烷基,C.sub.1-4烷氧基,苄氧基,羟基,硝基,C.sub.1-4烷基硫基,C.sub.1-4烷基亚硫酰基,C.sub.1-4烷基磺酰基,氨基和NHR.sup.7的基团,其中R.sup.7是C.sub.2-6酰基;R.sup.4是氢,C.sub.1-6烷基或卤素;及其盐。这些化合物具有药用特性,特别是在治疗哮喘等即时过敏症状方面有用。
  • Synthesis of novel polycarbonyl Schiff bases by ring-opening reaction of ethyl 5-acyl-4-pyrone-2-carboxylates with primary mono- and diamines
    作者:D. L. Obydennov、L. R. Khammatova、V. D. Steben'kov、V. Y. Sosnovskikh
    DOI:10.1039/c9ra07653k
    日期:——
    tricarbonyl moiety into aromatic, heterocyclic, and aliphatic amines with the use of acylpyrones has been developed for the synthesis and the design of novel polycarbonyl Schiff base ligands, including salphen structures. This Michael addition–ring-opening reaction proceeds under mild conditions (stirring at 0–20 °C) via the attack at the C-6 position of the pyrone ring in good to high yields (up to 99%) with
    开发了一种使用酰基吡喃酮将三羰基部分引入芳香胺、杂环胺和脂肪胺中的方法,用于合成和设计新型聚羰基席夫碱配体(包括salphen结构)。这种迈克尔加成-开环反应在温和条件下(在 0-20 °C 搅拌)下通过攻击吡喃酮环的 C-6 位进行,产率从良好到高(高达 99%),并且具有优异的选择性。无需使用色谱法即可通过结晶轻松分离产物。研究了反应范围、开链产物的互变异构平衡以及它们环化为吡啶酮结构。
  • Synthesis of Diketohexenoic Acid Derivatives by Alkenylation of Indoles and Pyrroles with 4-Pyrones
    作者:Dmitrii L. Obydennov、Ekaterina O. Pan’kina、Vyacheslav Y. Sosnovskikh
    DOI:10.1021/acs.joc.6b02364
    日期:2016.12.16
    A new synthesis of functionalized (Z)-6-hetaryl-2,4-dioxo-5-hexenoic acids based on acid-catalyzed alkenylation of indoles and pyrroles with derivatives of 5-substituted 4-pyrone-2-carboxylic acid in 37–82% yields has been developed. Coupling between isochelidonic acid and indoles followed by decarboxylation afforded biologically important (E)-6-indolyl-2,4-dioxo-5-hexenoic acids. These ring-opening
    官能化(一种新的合成Ž)-6-杂芳基-2,4-二氧代-5-己酸根据在37-的5-取代-4-吡喃酮-2-羧酸衍生物吲哚和吡咯的酸催化的烯基化已经开发了82%的产率。异螯合物酸和吲哚之间的偶联,然后进行脱羧,提供了生物学上重要的(E)-6-吲哚基-2,4-二氧代-5-己酸。这些开环反应通过在吡喃环的C-6位上的亲核进攻而以高区域选择性进行。6-吲哚基-2,4-二氧代-5-己酸乙酯与亲核试剂的反应可用于生产不同的含β-(吲哚基)乙烯基的氮杂杂环。
  • A chemo- and regiocontrolled approach to bipyrazoles and pyridones<i>via</i>the reaction of ethyl 5-acyl-4-pyrone-2-carboxylates with hydrazines
    作者:D. L. Obydennov、L. R. Khammatova、O. S. Eltsov、V. Y. Sosnovskikh
    DOI:10.1039/c7ob02725g
    日期:——
    Chemo- and regiocontrolled syntheses of pyrazoles and pyridones are presented on the basis of 4-pyrones. A novel approach towards highly functionalized 3,4′-bipyrazoles has been developed by using reactions of ethyl 5-acylcomanoates with hydrazines. The acid-promoted double cyclocondensation allows switching of the structure of the pyrazole rings easily through changing both the nature of hydrazine
    吡唑和吡啶酮的化学和区域控制合成以4-吡喃酮为基础。通过使用5-酰基马来酸乙酯与肼的反应,已经开发出一种新的方法来制备高度官能化的3,4'-联吡唑。酸促进的双环缩合允许通过改变肼的性质和反应条件两者而容易地切换吡唑环的结构。在-20°C的乙醇中,苯肼将4-吡喃酮转化,生成羟基吡啶酮作为单加成产物,可用作制备吡啶酮和吡唑衍生物的前体。发现了在DMSO中2-羟基吡啶酮向吡唑基-1,3-二酮的新型重排。联吡唑的结构和区域化学通过X射线分析和2D NMR实验证实。
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