6-methyl-2-phenyl-2,3,6,7-tetrahydrobenzofuran-4(5H)-one | 92898-22-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: 6-methyl-2-phenyl-2,3,6,7-tetrahydrobenzofuran-4(5H)-one
• 英文别名: 6-methyl-2-phenyl-3,5,6,7-tetrahydro-2H-1-benzofuran-4-one
• CAS: 92898-22-1
• 化学式: C₁₅H₁₆O₂
• 分子量: 228.291
• InChiKey: HTJLRPCQTZJCCI-UHFFFAOYSA-N

物化性质

• 沸点：
  343.6±32.0 °C(Predicted)
• 密度：
  1.15±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  17
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.4
• 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：

  1-phenyl-6-methylspiro[2.5]octane-4,8-dione 在 对甲苯磺酸 作用下， 以 二氯甲烷 为溶剂， 反应 1.0h， 以93%的产率得到6-methyl-2-phenyl-2,3,6,7-tetrahydrobenzofuran-4(5H)-one
  参考文献：
  名称：

  酸催化的螺环丙烷的开环环化反应，用于2-芳基苯并呋喃骨架的构建：Cuspidan B的全合成

  摘要：

  摘要 在无金属条件下，环己烷-1,3-二酮-2-螺环丙烷的酸催化开环环化反应在室温下顺利进行，得到2-芳基-3,5,6,7-四氢-1-苯并呋喃-4 （2 H）-一的产率极高，而不会形成3-取代的异构体。所得产物通过合成上有用的2-芳基-2，3-二氢苯并呋喃中间体转化为2-芳基苯并呋喃衍生物。此外，通过使用本方法实现了cuspidan B的第一全合成。 在无金属条件下，环己烷-1,3-二酮-2-螺环丙烷的酸催化开环环化反应在室温下顺利进行，得到2-芳基-3,5,6,7-四氢-1-苯并呋喃-4 （2 H）-一的产率极高，而不会形成3-取代的异构体。所得产物通过合成上有用的2-芳基-2，3-二氢苯并呋喃中间体转化为2-芳基苯并呋喃衍生物。此外，通过使用本方法实现了cuspidan B的第一全合成。

  DOI：

  10.1055/s-0035-1561590

文献信息

• Regioselective synthesis of dihydrofurans from 2,2-dibromo-1,3-diketone and olefin using copper
  作者：Jun-ichi Yoshida、Shinji Yano、Tadahiro Ozawa、Nariyoshi Kawabata

  DOI：10.1016/s0040-4039(01)81298-3

  日期：——

  2,2-Dibromo-1,3-diketones reacted with copper powder and olefin to give 4,5-dihydrofuran derivatives in a highly regioselective fashion.

  2,2-二溴-1,3-二酮与铜粉和烯烃反应，以高度区域选择性的方式生成4,5-二氢呋喃衍生物。
• AgBF₄/[Bmim]BF₄-Catalyzed [3+2] Cycloaddition of Cyclic Diazodicarbonyl Compounds: Efficient Synthesis of 2,3-Dihydrofurans and Conversion to 3-Acylfurans
  作者：Likai Xia、Yong-Rok Lee、Sung-Hong Kim、Won-Seok Lyoo

  DOI：10.5012/bkcs.2011.32.5.1554

  日期：2011.5.20

  A novel and efficient method for the synthesis of 2,3-dihydrofurans bearing a variety of substituents on the dihydrofuran ring was achieved by the reaction of cyclic diazodicarbonyl compounds with styrene and vinyl acetate. The key strategy was AgBF/[Bmim]BF-catalyzed [3+2] cycloaddition. The synthesized dihydrofurans with an acetate group were further converted to the corresponding 3-acylfurans.

  通过环状重氮二羰基化合物与苯乙烯和乙酸乙烯酯的反应，实现了一种新型高效的二氢呋喃环上具有多种取代基的 2,3-二氢呋喃的合成方法。关键策略是 AgBF/[Bmim]BF 催化的 [3+2] 环加成。合成的具有乙酸根的二氢呋喃进一步转化为相应的 3-酰基呋喃。
• Fused dihydrofurans from the one-pot, three-component reaction of 1,3-cyclohexanedione, iodobenzene diacetate and alkenes
  作者：Dimitra Kalpogiannaki、Catherine-Irene Martini、Aggeliki Nikopoulou、John A. Nyxas、Vassiliki Pantazi、Lazaros P. Hadjiarapoglou

  DOI：10.1016/j.tet.2012.12.006

  日期：2013.2

  The one-pot, three-component reactions of substituted 1,3-cyclohexanediones, iodobenzene diacetate and alkenes, under photochemical activation, yields fused dihydrofuran derivatives in good yield via the in situ formation of iodonium ylides. (C) 2012 Elsevier Ltd. All rights reserved.
• Efficient One-Pot Synthesis of Multi-Substituted Dihydrofurans by Ruthenium(II)-Catalyzed [3+2] Cycloaddition of Cyclic or Acyclic Diazodicarbonyl Compounds with Olefins
  作者：Likai Xia、Yong Rok Lee

  DOI：10.1002/adsc.201300245

  日期：2013.8.12

  AbstractRuthenium(II)‐phosphine complexes‐catalyzed [3+2] cycloadditions were conducted to synthesize a variety of dihydrofurans by reactions of cyclic or acyclic diazodicarbonyl compounds with olefins. This method represents a direct and efficient one‐pot synthesis for multi‐substituted dihydrofurans under mild reaction conditions with an excellent regioselectivity. Furthermore, to reduce reaction times and increase yields of dihydrofurans, microwave‐assisted tris(triphenylphosphine)ruthenium(II) chloride/ 1‐butyl‐3‐methylimidazolium tetrafluoroborate Ru(PPh3)3Cl2/[Bmim]BF4}‐catalyzed reactions were also developed. The synthesized dihydrofurans can be readily converted into biologically interesting tetrahydroindoles.magnified image
• Regioselective synthesis of dihydrofurans from 2,2-dibromo 1,3-diones and olefins using copper
  作者：Junichi Yoshida、Shinji Yano、Tadahiro Ozawa、Nariyoshi Kawabata

  DOI：10.1021/jo00219a010

  日期：1985.9