6H-benzo[c]chromen-6-one-1,2,3,4-d4 | 1443434-91-0

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 香豆素及其衍生物
• 英文名称: 6H-benzo[c]chromen-6-one-1,2,3,4-d4
• 英文别名: 6H-benzo[c]chromen-6-one-1,2,3,4-d₄
• CAS: 1443434-91-0
• 化学式: C₁₃H₈O₂
• 分子量: 200.174
• InChiKey: TVKNXKLYVUVOCV-AJEVBKBKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.95
• 重原子数：
  15.0
• 可旋转键数：
  0.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  30.21
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为产物：
  描述：

  氘代溴苯 在 bis-triphenylphosphine-palladium(II) chloride 、 ammonium peroxydisulfate 、 正丁基锂 、 水 、 sodium carbonate 、 sodium hydroxide 、 10-甲基-9-均三甲苯基吖啶高氯酸盐 作用下， 以 四氢呋喃 、 甲醇 、 水 、 乙腈 为溶剂， 反应 45.25h， 生成 6H-benzo[c]chromen-6-one-1,2,3,4-d4
  参考文献：
  名称：

  Photocatalytic Dehydrogenative Lactonization of 2-Arylbenzoic Acids

  摘要：

  A metal-free dehydrogenative lactonization of 2-arylbenzoic acids at room temperature was developed. This work illustrates the first application of visible-light photoredox catalysis in the preparation of benzo-3,4-coumarins, an important structural motif in bioactive molecules. The combination of photocatalyst [Acr(+)-Mes] with (NH4)(2)S2O8 as a terminal oxidant provides an economical and environmentally benign entry to different substituted benzocoumarins. Preliminary mechanistic studies suggest that this reaction most likely occurs through a homolytic aromatic substitution pathway.

  DOI：

  10.1021/acs.orglett.5b02269

文献信息

• Pd-Catalyzed C–H Lactonization for Expedient Synthesis of Biaryl Lactones and Total Synthesis of Cannabinol
  作者：Yan Li、Yan-Jun Ding、Jian-Yong Wang、Yi-Ming Su、Xi-Sheng Wang

  DOI：10.1021/ol400877q

  日期：2013.6.7

  cyclization to construct biaryl lactones has been developed. The synthetic utility of this new reaction was demonstrated in an atom-economical and operationally convenient total synthesis of the natural product cannabinol from commercially available starting materials, with the newly developed method used for two key steps.

  已开发出一种实用的Pd（II）/ Pd（IV）催化的羧基定向C–H活化/ C–O环化反应来构建联芳基内酯。该新反应的合成效用在天然经济的大麻素从市售原料中进行了原子经济且操作方便的全合成中得到了证明，其中新开发的方法用于两个关键步骤。
• External Oxidant-Free Dehydrogenative Lactonization of 2-Arylbenzoic Acids via Visible-Light Photocatalysis
  作者：Ailong Shao、Jirui Zhan、Na Li、Chien-Wei Chiang、Aiwen Lei

  DOI：10.1021/acs.joc.7b03195

  日期：2018.4.6

  group tolerance and excellent reaction efficiency are shown in this transformation. Meanwhile, the substrates containing heterocyclic substituents such as thienyl-, pyridinyl-, and pyrrolylbenzoic acids displayed good performance. Importantly, this reaction can be performed with good efficiency on a gram scale. A cyclic voltammetry study and density functional theory calculations could provide insight

  已经开发了一种外部无氧化剂的C–H官能化/ C–O键形成反应，用于构建伴随有定量H 2释放的苯并3,4-香豆素。在该转化中显示出高的官能团耐受性和优异的反应效率。同时，含有杂环取代基如噻吩基-，吡啶基-和吡咯基苯甲酸的底物表现出良好的性能。重要的是，该反应可以以克为单位高效地进行。循环伏安法研究和密度泛函理论计算可提供对该反应机理的深入了解。
• Cu-Catalyzed Mild C(sp²)–H Functionalization Assisted by Carboxylic Acids en Route to Hydroxylated Arenes
  作者：Joan Gallardo-Donaire、Ruben Martin

  DOI：10.1021/ja4047894

  日期：2013.6.26

  A formal Cu-catalyzed C(sp(2))-H hydroxylation assisted by benzoic acids is described. The procedure is characterized by its mild reaction conditions and wide substrate scope utilizing simple and cheap Cu catalysts, thus becoming a user-friendly and operationally simple protocol for C(sp(2))-H hydroxylation.