2-碘环戊烷-1-酮 | 69381-32-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 2-碘环戊烷-1-酮
• 英文名称: 2-iodocyclopentanone
• 英文别名: α-iodocyclopentanone；2-iodo-1-cyclopentanone；2-iodocyclopent-2-one；1-iodocyclopentanone；2-Iodocyclopentan-1-one
• CAS: 69381-32-4
• 化学式: C₅H₇IO
• 分子量: 210.014
• InChiKey: FORJQEYPYONHAR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  7
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-碘环戊烷-1-酮 在 sodium tetrahydroborate 、 Burkholderia cepacia Amano PS lipase 作用下， 以 甲醇 、 甲基叔丁基醚 为溶剂， 反应 16.0h， 生成 (1R,2S)-2-iodocyclopentyl acetate
  参考文献：
  名称：

  Enzymatic preparation of (1S,2R)- and (1R,2S)-stereoisomers of 2-halocycloalkanols

  摘要：

  The stereoisomers of cis-2-halocycloalkanols were resolved by a kinetically controlled transesterification with vinyl acetate in the presence of lipases in organic media. High enantioselectivities (ee >98%) and good isolated yields were obtained for all substrates using the appropriate lipase. Burkholderia cepacia lipase was the most efficient enzyme for the resolution of these substrates. The enantiomeric purities of the compounds were defined by derivatization with Mosher's acid and the absolute configurations were determined by chemical correlation. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2012.11.011
• 作为产物：
  描述：

  环戊烯 在 iodonium di-sym-collidine tetrafluoroborate 、 二甲基亚砜 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 以62%的产率得到2-碘环戊烷-1-酮
  参考文献：
  名称：

  Syntheses of α-lodocarbonyl Compounds Using Bis(sym-collidine)lodine(I) Tetrafluoroborate/Dimethyl Sulfoxide

  摘要：

  DOI：

  10.1055/s-1986-31757

文献信息

• m-Iodosylbenzoic Acid as a Convenient Recyclable Hypervalent Iodine Oxidant for the Synthesis of α-Iodo Ketones by Oxidative Iodination of Ketones
  作者：Mehman Yusubov、Viktor Zhdankin、Rosa Yusubova、Tatyana Funk、Ki-Whan Chi、Andreas Kirschning

  DOI：10.1055/s-0030-1258223

  日期：2010.11

  A convenient procedure for the preparation of α-iodo ketones by oxidative iodination of ketones using iodine and m-iodosylbenzoic acid as a recyclable hypervalent iodine oxidant is reported. Various ketones and β-dicarbonyl compounds can be iodinated by this reagent system under mild conditions affording the respective α-iodo-substituted carbonyl compounds in excellent yields. The final products of

  使用用于通过酮的氧化碘化制备α碘酮的方便方法碘和中号作为可回收高价碘氧化剂报道-iodosylbenzoic酸。该试剂体系可以在温和的条件下碘化各种酮和β-二羰基化合物，从而以优异的产率提供各自的α-碘取代的羰基化合物。碘化的最终产物可方便地从由副产物简单处理分离与阴离子交换树脂的Amberlite IRA 900 HCO 3 -和蒸发溶剂后以良好的纯度分离出来。高价碘氧化剂的还原形式m通过用盐酸水溶液处理，然后用乙酸乙酯萃取，可以以91-95％的收率从Amberlite树脂中回收-碘苯甲酸。 卤化-碘-酮-亚碘酰苯-米-iodosylbenzoic酸-高价碘
• Efficient microwave induced direct α-halogenation of carbonyl compounds
  作者：Jong Chan Lee、Jin Young Park、So Young Yoon、Yong Hun Bae、Seung Jun Lee

  DOI：10.1016/j.tetlet.2003.10.133

  日期：2004.1

  A novel and direct method for the synthesis of α-halocarbonyl compounds using sequential treatment of carbonyl compounds with [hydroxy(tosyloxy)iodo]benzene followed by magnesium halides under solvent-free microwave irradiation conditions is described.

  描述了一种新颖的直接合成α-卤代羰基化合物的方法，该方法是在无溶剂微波辐射条件下依次用[羟基（甲苯磺酰氧基）碘]苯和卤化镁依次处理羰基化合物。
• Halogenation of Carbonyl Compounds by an Ionic Liquid, [AcMIm]X, and Ceric Ammonium Nitrate (CAN)
  作者：Brindaban C. Ranu、Laksmikanta Adak、Subhash Banerjee

  DOI：10.1071/ch07061

  日期：——

  An ionic liquid, acetylmethylimidazolium halide ([AcMIm]X), in combination with ceric ammonium nitrate promotes halogenations of a wide variety of ketones and 1,3-keto esters at the α-position. The ionic liquid acts here as reagent as well as reaction medium, and thus the reaction does not require any organic solvent or conventional halogenating agent. The reaction is completely arrested when the radical

  离子液体乙酰甲基咪唑鎓卤化物 ([AcMIm]X) 与硝酸铈铵结合可促进多种酮和 1,3-酮酯在 α 位的卤化。离子液体在此既充当试剂又充当反应介质，因此该反应不需要任何有机溶剂或常规卤化剂。当使用自由基猝灭剂 TEMPO 时，反应完全停止。还提出了一种似是而非的激进机制。
• Oxidation of 2-Substituted Cycloalkanones with Cerium(IV) Sulfate Tetrahydrate in Alcohols and Acetic Acid
  作者：Liangyou He、C. Akira Horiuchi

  DOI：10.1246/bcsj.72.2515

  日期：1999.11

  The reaction of 2-substituted cycloalkanones with cerium(IV) sulfate tetrahydrate (CS) in alcohols and acetic acid gave the corresponding alkyl esters of oxo acids (80—96%) and oxo acids (78—96%), respectively, by oxidative cleavage of the C(R)–C=O bond. In the case of 2-iodocycloalkanones in methanol, the dimethyl ester was obtained in good yield. A treatment of 5α-cholestan-3-one with CS in methanol

  2-取代环烷酮与四水合硫酸铈 (CS) 在醇和乙酸中反应，分别通过氧化反应生成相应的含氧酸 (80-96%) 和含氧酸 (78-​​96%) 烷基酯C(R)–C=O 键的断裂。在甲醇中的 2-碘环烷酮的情况下，以良好的收率获得二甲酯。在甲醇中用 CS 处理 5α-cholestan-3-one 以良好的收率产生 2,3-seco 衍生物的 2-缩醛 3-酯。还讨论了铈 (IV) 和铜 (II) 盐的影响。
• Multifunctionalization of Unactivated Cyclic Ketones via an Electrochemical Process: Access to Cyclic α-Enaminones
  作者：Kangfei Hu、Peng Qian、Ji-Hu Su、Zhibin Li、Jiawei Wang、Zhenggen Zha、Zhiyong Wang

  DOI：10.1021/acs.joc.8b02930

  日期：2019.2.1

  The multifunctionalization of unactivated cyclic ketones was developed via an electrochemically intermolecular α-amination under metal-free conditions. The reaction can be carried out smoothly with a broad scope of the aromatic amines substrates under mild conditions, affording a variety of α-enaminones with good to excellent yields in one step.

  通过在无金属条件下进行电化学分子间α胺化反应，开发了未活化环酮的多功能化。该反应可在温和条件下与多种芳香胺底物一起平稳进行，一步即可得到各种具有良好产率或优异产率的α-烯酮。