3-butyl-4-(phenylselanyl)-1H-isochromen-1-one | 1314961-21-1

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 异香豆素及其衍生物
• 英文名称: 3-butyl-4-(phenylselanyl)-1H-isochromen-1-one
• 英文别名: 3-Butyl-4-phenylselanylisochromen-1-one
• CAS: 1314961-21-1
• 化学式: C₁₉H₁₈O₂Se
• 分子量: 357.311
• InChiKey: UNJNVCRRAYQOHS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.79
• 重原子数：
  22
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.21
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  碘苯 在 selenium 、 copper(II) oxide 、 tetrabutylammonium tetrafluoroborate 、 potassium hydroxide 作用下， 以 二甲基亚砜 、 乙腈 为溶剂， 反应 0.08h， 生成 3-butyl-4-(phenylselanyl)-1H-isochromen-1-one
  参考文献：
  名称：

  在无金属和无氧化剂的情况下，由邻-（1-炔基）苯甲酸酯连续电化学合成异香豆素衍生物。

  摘要：

  通过使用连续电化学微反应器引发邻-（1-炔基）苯甲酸酯和自由基的氧化环化反应来合成异香豆素的非氧化剂和无金属策略。这种高效，清洁的连续电合成方法不仅避免了分批过程中复杂的气体保护操作和副产物的产生，而且还帮助克服了难于批量生产金属催化和电催化的规模扩大的难题，并具有潜在的应用前景。中试规模的实验。

  DOI：

  10.1002/chem.202001766

文献信息

• Synthesis of 4-Selanyl- and 4-Tellanyl-1<i>H</i>-isochromen-1-ones Promoted by Diorganyl Dichalcogenides and Oxone
  作者：Helen A. Goulart、José S. S. Neto、Angelita M. Barcellos、Krigor B. Silva、Maiara C. de Moraes、Raquel G. Jacob、Eder J. Lenardão、Thiago Barcellos、Gelson Perin

  DOI：10.1021/acs.joc.1c00271

  日期：2021.10.15

  A new method was developed for the synthesis of 4-chalcogenyl-1H-isochromen-1-ones through the 6-endo-dig electrophilic cyclization of 2-alkynylaryl esters and diorganyl dichalcogenides under ultrasound irradiation. The reactions were performed under mild conditions, using Oxone as a green oxidant to promote the cleavage of the chalcogen–chalcogen bond in diorganyl diselenides and ditellurides to generate

  开发了一种通过2-炔基芳基酯和二有机基二硫属元素化物在超声辐照下 6- endo - dig亲电环化反应合成 4-chalcogenyl- 1H - isochromen -ones的新方法。该反应在温和的条件下进行，使用 Oxone 作为绿色氧化剂来促进二有机二硒化物和二碲化物中硫属元素 - 硫属元素键的断裂，从而原位生成亲电子物质。30-70 分钟后，总共有 25 种化合物被选择性地获得，产率从良好到极好（74-95%）。该程序扩展到制备 5 H-硒酚[3,2 - c ] isochromen -5-ones。此外，首次将 4-chalcogenyl-1 H-isochromen-1-ones 被用作硫化反应中的底物，在无溶剂条件下使用劳森试剂和微波辐射，仅在 15 分钟内就以高达 99% 的产率获得了硫代衍生物。
• In Situ Formation of RSCl/ArSeCl and Their Application to the Synthesis of 4-Chalcogenylisocumarins/Pyrones from <i>o</i>-(1-Alkynyl)benzoates and (<i>Z</i>)-2-Alken-4-ynoates
  作者：Linlin Xing、Yong Zhang、Bing Li、Yunfei Du

  DOI：10.1021/acs.orglett.9b01046

  日期：2019.5.17

  diorganyl disulfides or diselenides with PhICl2 in acetonitrile was found for the first time to lead to the in situ formation of organosulfenyl chloride or selenenyl chloride, which enables the regioselective intramolecular chalcogenylacyloxylation of alkynes resulting in the formation of 4-chalcogenylisocumarins/pyrones in good to excellent yields under metal-free conditions.

  首次发现二有机基二硫化物或二硒化物与PhICl 2在乙腈中的反应导致原位形成有机亚磺酰氯或亚硒基氯，这使炔的区域选择性分子内硫属半乳糖基酰氧基化反应导致形成4-硫属元素基异cumarins /吡喃酮。在无金属条件下的收率好至极好。
• Regioselective Synthesis of Isochromenones by Iron(III)/PhSeSePh-Mediated Cyclization of 2-Alkynylaryl Esters
  作者：Adriane Sperança、Benhur Godoi、Simone Pinton、Davi F. Back、Paulo H. Menezes、Gilson Zeni

  DOI：10.1021/jo201211s

  日期：2011.8.19

  A series of 4-Se-(Te, S)-isochromenones and 3-substituted isochromenones were synthesized in good yields via FeCl3-mediated cyclization of alkynylaryl esters with different diorganyl dichalcogenides. This methodology was carried out at room temperature, using inexpensive and environmentally friendly iron salts as metallic source and under air atmosphere. The reaction showed to be tolerant to a range of substituents bonded into the aromatic ring of the diorganyl dichalcogenides as well as to alkyl groups directly bonded to the chalcogen atom. Alternatively, the cyclization reaction of 2-alkynylaryl esters with FeCl3, in the absence of diorganyl dichalcogenide, gave the isochromenones without the chalcogen moiety in the structure. This approach proved to be highly regioselective, providing only six-membered ring products, once the possible five-membered products were not observed in any experiments.
• Visible-light-promoted selenylation/cyclization of o-(1-alkynyl) benzoates to access seleno-substituted isocoumarins
  作者：Mei-Lin Ren、Xi-Rui Gong、Yan-Yan Chen、Yan-Li Xu

  DOI：10.1039/d4ob01010h

  日期：——

  A simple and efficient method to access 4-selenyl-isocoumarin derivatives through visible-light-promoted selenylation/cyclization of o-(1-alkynyl) benzoates has been developed.