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4-(2-nitrophenyl)-3-methyl-(3E)-buten-2-one | 698380-19-7

中文名称
——
中文别名
——
英文名称
4-(2-nitrophenyl)-3-methyl-(3E)-buten-2-one
英文别名
(E)-3-methyl-4-(2-nitrophenyl)but-3-en-2-one
4-(2-nitrophenyl)-3-methyl-(3E)-buten-2-one化学式
CAS
698380-19-7
化学式
C11H11NO3
mdl
——
分子量
205.213
InChiKey
JHIHHOCJUJJWQP-BQYQJAHWSA-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

物化性质

  • 熔点:
    59-60 °C(Solv: hexane (110-54-3))
  • 沸点:
    358.0±25.0 °C(Predicted)
  • 密度:
    1.191±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    2
  • 重原子数:
    15
  • 可旋转键数:
    2
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.18
  • 拓扑面积:
    62.9
  • 氢给体数:
    0
  • 氢受体数:
    3

上下游信息

  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    4-(2-nitrophenyl)-3-methyl-(3E)-buten-2-one盐酸铁粉 作用下, 以 乙醇 为溶剂, 以0.480 g的产率得到4-(2-aminophenyl)-3-methyl-(3E)-buten-2-one
    参考文献:
    名称:
    蓝光促进的碳-碳双键异构化及其在喹啉合成中的应用
    摘要:
    据报道在没有任何光氧化还原催化剂的情况下,蓝光促进的碳-碳双键异构化。在简单的有氧条件下,它可以快速获得一系列喹啉,收率好至极好。该方案是直接,无催化剂且操作方便的。
    DOI:
    10.1039/c7ob00558j
  • 作为产物:
    描述:
    邻硝基苯甲醛对甲苯磺酸 、 sodium hydroxide 作用下, 以 甲苯 为溶剂, 反应 12.0h, 生成 4-(2-nitrophenyl)-3-methyl-(3E)-buten-2-one
    参考文献:
    名称:
    蓝光促进的碳-碳双键异构化及其在喹啉合成中的应用
    摘要:
    据报道在没有任何光氧化还原催化剂的情况下,蓝光促进的碳-碳双键异构化。在简单的有氧条件下,它可以快速获得一系列喹啉,收率好至极好。该方案是直接,无催化剂且操作方便的。
    DOI:
    10.1039/c7ob00558j
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文献信息

  • Concerning the mechanism of the Friedländer quinoline synthesis
    作者:Joseph M Muchowski、Michael L Maddox
    DOI:10.1139/v03-211
    日期:2004.3.1

    Detailed experiments regarding the mechanism of the Friedländer synthesis of quinolines from o-aminobenzaldehydes and simple aldehydes or ketones are described. Under the basic or acidic conditions commonly used in this reaction, it is concluded that the first step involves a slow intermolecular aldol condensation of the aldehyde or ketone with the o-aminobenzaldehyde. The aldol adduct 5 generated in this manner then undergoes very rapid cyclization to 4, which subsequently loses water to produce the quinoline derivative 8. Both 5 and 4 are too short lived to be detectable (TLC), even when deliberately generated by other means. It is also shown that E-enones corresponding to 6, i.e., the aldol dehydration product, are converted into quinolines (e.g., 21a and 21b from 17a and 17b) under basic or acidic conditions. Such enones are not detected as intermediates in the base-induced Friedländer synthesis, even though certain congeners (17b) would be easily observable. Under acidic conditions these enones are too short lived to be detectable. Schiff bases derived from 2-aminobenzaldehyde (18a) and aldehydes or ketones can be generated under special conditions, but they show reactivity patterns different from those seen in the usual Friedländer condensations. Thus, the ytterbium-triflate-catalyzed reaction of aldehydes with 18a at room temperature in toluene generates the E-Schiff bases (33, R1 = H), from which isomeric mixtures of tetrahydroquinoline derivatives 26 are formed exclusively. At higher temperatures, the E-Schiff bases 33 are isomerized to the Z-Schiff bases 34, from which the 3-substituted quinoline derivatives 24 are formed as the major products under appropriate conditions. Also, the ytterbium-triflate-catalyzed reaction of 18a with the pyrrolidine enamines of the methyl-n-alkylketones 38a,b produces mixtures in which the 2-monosubstituted kinetic products 37b,d predominate over the 2,3-disubstituted thermodynamic products 21c,e by a factor of 4:1 to 5:1. These results are opposite to those observed under the usual basic or acidic Friedländer reactions with methyl-n-alkylketones, where the thermodynamic products are usually strongly favored. The unusual kinetic:thermodynamic product ratios observed with 38a,b are ascribed to the generation and rapid cyclization of mixtures of the Schiff bases 35 and 36, in which the kinetic isomer 35 is highly predominant. Key words: mechanism, Friedländer synthesis, quinolines, intramolecular aldol reactions, Schiff bases, tetrahydroquinolines, high kinetic:thermodynamic product ratios.

    描述了关于从o-氨基苯甲醛和简单醛或酮合成喹啉的 Friedländer 合成机制的详细实验。在这种反应中常用的碱性或酸性条件下,得出结论第一步涉及醛或酮与o-氨基苯甲醛的缓慢分子间醛缩反应。以这种方式生成的醛缩加合物5随后经历非常快速的环化反应形成4,然后失去水生成喹啉衍生物8。即使通过其他方式故意生成,5和4都太短暂而无法检测到(TLC)。还表明与6相对应的E-烯酮,即醛缩脱水产物,在碱性或酸性条件下会转化为喹啉(例如,从17a和17b生成的21a和21b)。尽管某些同系物(17b)很容易观察到,但在碱性诱导的 Friedländer 合成中并未检测到这些烯酮作为中间体。在酸性条件下,这些烯酮太短暂而无法检测到。从2-氨基苯甲醛(18a)和醛或酮生成的席夫碱可以在特殊条件下产生,但它们显示出与通常的 Friedländer 缩合反应中看到的反应性模式不同。因此,醛在甲苯中与18a在室温下催化的钇三氟乙酸盐反应生成E-席夫碱(33,R1 = H),从中仅生成异构混合物四氢喹啉衍生物26。在较高温度下,E-席夫碱33异构为Z-席夫碱34,在适当条件下主要生成3-取代喹啉衍生物24。此外,18a与甲基-n-烷基酮38a,b的吡咯啉烯胺反应在产物中产生2-单取代动力学产物37b,d,其比例为4:1至5:1,优于2,3-二取代热力学产物21c,e。这些结果与通常与甲基-n-烷基酮进行的基本或酸性 Friedländer 反应中观察到的情况相反,通常情况下热力学产物通常受到强烈青睐。观察到的与38a,b相反的不寻常的动力学:热力学产物比例归因于席夫碱35和36的混合物的生成和快速环化,其中动力学异构体35占主导地位。关键词:机制,Friedländer 合成,喹啉,分子内醛缩反应,席夫碱,四氢喹啉,高动力学:热力学产物比。
  • Blue-light-promoted carbon–carbon double bond isomerization and its application in the syntheses of quinolines
    作者:Xinzheng Chen、Shuxian Qiu、Sasa Wang、Huifei Wang、Hongbin Zhai
    DOI:10.1039/c7ob00558j
    日期:——
    A blue-light-promoted carbon-carbon double bond isomerization in the absence of any photoredox catalyst is reported. It provides rapid access to a series of quinolines in good to excellent yields under simple aerobic conditions. The protocol is direct, catalyst-free and operationally convenient.
    据报道在没有任何光氧化还原催化剂的情况下,蓝光促进的碳-碳双键异构化。在简单的有氧条件下,它可以快速获得一系列喹啉,收率好至极好。该方案是直接,无催化剂且操作方便的。
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