1-(2,5-dimethyl-5-phenyl-4,5-dihydro-furan-3-yl)-ethanone | 54023-32-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 1-(2,5-dimethyl-5-phenyl-4,5-dihydro-furan-3-yl)-ethanone
• 英文别名: 1-(2,5-dimethyl-5-phenyl-4H-furan-3-yl)-ethanone；1-(2,5-dimethyl-2-phenyl-3H-furan-4-yl)ethanone
• CAS: 54023-32-4
• 化学式: C₁₄H₁₆O₂
• 分子量: 216.28
• InChiKey: VBLCRYREYWPZIP-UHFFFAOYSA-N

物化性质

• 沸点：
  160-165 °C(Press: 0.998 Torr)
• 密度：
  1.066±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 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：

  乙酰丙酮 在 哌啶 作用下， 反应 24.0h， 生成 1-(2,5-dimethyl-5-phenyl-4,5-dihydro-furan-3-yl)-ethanone
  参考文献：
  名称：

  亲电子烯烃的酸催化闭环反应

  摘要：

  用硫酸或二甲基甲酰胺-氯化氢或对甲苯磺酸处理α-酰基-α，β-不饱和酮产生3-酰基-2-烷基-4，5-二氢呋喃。类似地环化α-酰基-α，β-不饱和酯，最初得到3-烷氧基羰基-2-烷基-4，5-二氢呋喃，将其在进一步与硫酸反应后转化为2-酰基丁醇化物。

  DOI：

  10.1016/0040-4020(82)80073-2

文献信息

• A facile synthesis of dihydrofurans utilizing silver(I)/Celite promoted oxidative cycloaddition of 1,3-dicarbonyl compounds to alkenes
  作者：Yong Rok Lee、Byung So Kim

  DOI：10.1016/s0040-4039(97)00315-8

  日期：1997.3

  An efficient synthesis of dihydrofurans has been carried out starting from 1,3-dicarbonyl compounds

  从1,3-二羰基化合物开始有效合成二氢呋喃
• CAN-Mediated Oxidative Free Radical Reactions in an Ionic Liquid
  作者：Gregory Bar、Fabien Bini、Andrew F. Parsons

  DOI：10.1081/scc-120015703

  日期：2003.3

  Abstract Cerium(IV) ammonium nitrate-mediated oxidative radical reactions are carried out in the presence of ionic liquids, including 1-butyl-3-methylimidazolium tetrafluoroborate, for the first time. The presence of the ionic liquid not only increases the rate and yield of reactions in dichloromethane but also extends the range of 1,3-dicarbonyl precursors, which can be utilized in these carbon–carbon

  摘要 硝酸铈(IV)铵介导的氧化自由基反应首次在离子液体存在下进行，包括1-丁基-3-甲基咪唑鎓四氟硼酸盐。离子液体的存在不仅提高了二氯甲烷中反应的速率和产率，而且扩大了 1,3-二羰基前体的范围，可用于这些碳 - 碳键形成反应。
• Oxidative Addition of 1,3-Dicarbonyl Compounds to Conjugated Olefins
  作者：Maxim G. Vinogradov、Alexander E. Kondorsky、Gennady I. Nikishin

  DOI：10.1055/s-1988-27465

  日期：——

  A convenient one step synthesis of the 5-aryl- or 5-(1-alkenyl)-4,5-dihydrofurans from 1,3-dicarbonyl compounds and conjugated olefins in the presence of copper(II) chloride/pyridine or copper(II) chloride/pyridine/oxygen is reported.

  据报道，在氯化铜（II）/吡啶或氯化铜（II）/吡啶/氧存在下，可方便地一步合成 1,3-二羰基化合物和共轭烯烃为原料的 5-芳基或 5-（1-烯基）-4,5-二氢呋喃。
• The Facile Synthesis of Dihydrofurans by the Oxidation of Olefins with Tris(2,4-pentanedionato)manganese(III)
  作者：Hiroshi Nishino

  DOI：10.1246/bcsj.58.1922

  日期：1985.7

  Eleven olefins were oxidized with tris(2,4-pentanedionato)manganese(III) at the reflux temperature to give the corresponding 3-acetyl-2-methyl-4,5-dihydrofurans in good yields. The oxidation of 9-benzylidene-9,10-dihydroanthracene under the same reaction conditions did not produce the corresponding dihydrofuran, but 9-[α-(1-acetyl-2-hydroxy-1-propenyl)benzylidene]-9,10-dihydroanthracene. When 1,1-diphenylethene

  在回流温度下用三(2,4-戊二酮)锰(III)氧化十一种烯烃，以良好的产率得到相应的3-乙酰基-2-甲基-4,5-二氢呋喃。9-苯亚甲基-9,10-二氢蒽在相同反应条件下氧化不产生相应的二氢呋喃，而是9-[α-(1-乙酰-2-羟基-1-丙烯基)苯亚甲基]-9,10-二氢蒽。当1,1-二苯基乙烯在室温下被氧化时，3-乙酰基-2-氢过氧-2-甲基-5,5-二苯基四氢呋喃以高产率获得。溶剂和添加剂对二氢呋喃收率的影响，其他（2,4-戊二酮）金属配合物的可比反应性，如 Co(III)、Cr(III)、Fe(III) 和 Cu(II) )，并讨论了反应机理。
• Electronic and steric effects in the addition of electrophilic 1,3-dicarbonylalkyl radicals to styrenes
  作者：Enrico Baciocchi、Renzo Ruzziconi

  DOI：10.1021/jo00015a037

  日期：1991.7

  The addition reactions of 1,3-dicarbonylalkyl radicals to ring-substituted styrenes have been kinetically investigated in MeOH and/or MeCN. It has been observed that the rate effect of ring substituents is nearly identical in the reactions of MeCOCHCOMe (1), MeOCOCHCOMe (2) and MeOCOCHCOOMe (4), the rho-value, in MeOH being -0.96, -1.01 and -1.06, respectively. Since the three radicals are relatively strong oxidants and have similar reduction potentials, an important contribution of the charge transfer structure RCOCHCORCH2CHAr.+ to the addition transition state is suggested. It has also be found that in the reactions of 1 and 4 with alpha-alkyl-substituted styrenes the rate of addition is strongly influenced by the nature of the alkyl group, decreasing in the order: Me > Et > (i)Pr > (t)Bu. The observed effects are much larger than those reported for the corresponding reactions of the nucleophilic cyclohexyl radical. It is suggested that the alpha-alkyl substituents exert an effect of steric inhibition of resonance thereby ring delocalization of the charge and/or unpaired electron in the transition state is significantly reduced. Delocalization may be more important in the reactions of 1 and 4 than in those of the cyclohexyl radical since it is possible that the former utilizes a transition state occurring later along the reaction coordinate and/or characterized by a larger extent of charge transfer.