3a,4-dihydro-6-(3-methoxyphenyl)-1H-cyclopenta[c]furan-5(3H)-one | 1241072-82-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 3a,4-dihydro-6-(3-methoxyphenyl)-1H-cyclopenta[c]furan-5(3H)-one
• CAS: 1241072-82-1
• 化学式: C₁₄H₁₄O₃
• 分子量: 230.263
• InChiKey: ZHGBPLATMDHFAW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.07
• 重原子数：
  17.0
• 可旋转键数：
  2.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  35.53
• 氢给体数：
  0.0
• 氢受体数：
  3.0

反应信息

• 作为产物：
  描述：

  3-(3-甲氧基苯基)-2-丙炔-1-醇 在 bis(1,5-cyclooctadiene)diiridium(I) dichloride 、 sodium hydride 、 R-(+)-1,1'-联萘-2,2'-双二苯膦 作用下， 以 四氢呋喃 、 1,4-二氧六环 为溶剂， 反应 48.0h， 生成 3a,4-dihydro-6-(3-methoxyphenyl)-1H-cyclopenta[c]furan-5(3H)-one
  参考文献：
  名称：

  Iridium-catalyzed cascade decarbonylation/highly enantioselective Pauson–Khand-type cyclization reactions

  摘要：

  An easily accessible chiral iridium-BINAP complex can effect the cooperative processes of decarbonylation of an aldehyde and cascaded enantioselective Pauson-Khand-type reaction. A survey of ligands revealed that atropisomeric aryl-diphosphine ligands were superior to chiral alkyl-diphosphines in this dual catalysis. Applying the reaction conditions of [IrCl(COD)](2)/(S)-BINAP complex with nonylaldehyde as a CO surrogate at 100 degrees C in anhydrous dioxane solvent, various 1,6-enynes were transformed to the corresponding optically active bicyclic cyclopentenones with excellent enantioselectivities (up to 98% ee). (c) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2006.03.036

文献信息

• Utilization of Aldoses as a Carbonyl Source in Cyclocarbonylation of Enynes
  作者：Keiichi Ikeda、Tsumoru Morimoto、Kiyomi Kakiuchi

  DOI：10.1021/jo1012288

  日期：2010.9.17

  The reaction of enynes with acetyl-masked aldoses in the presence of a rhodium(I) catalyst resulted in cyclocarbonylation, thus avoiding the direct use of carbon monoxide, to afford bicyclic cyclopentenones. In rhodium catalysis, aldoses serve as a carbon monoxide equivalent by donating their carbonyl moieties on the acyclic aldehyde form to enynes. A variety of aldoses, including d-glucose, d-mannose

  在铑（I）催化剂存在下，烯炔与乙酰基掩盖的醛糖的反应导致环羰基化，从而避免了直接使用一氧化碳，得到双环环戊烯酮。在铑催化中，醛糖通过将其在无环醛形式上的羰基部分提供给烯炔而充当一氧化碳当量。可以使用多种醛糖，包括d-葡萄糖，d-甘露糖，d-半乳糖，d-木糖和d-核糖，作为羰基来源。使用该方法，各种烯类都以22-67％的收率被环羰基化。不对称变体也以中等至高对映选择性进行。
• Iridium-catalyzed cascade decarbonylation/highly enantioselective Pauson–Khand-type cyclization reactions
  作者：Fuk Yee Kwong、Hang Wai Lee、Wai Har Lam、Liqin Qiu、Albert S.C. Chan

  DOI：10.1016/j.tetasy.2006.03.036

  日期：2006.4

  An easily accessible chiral iridium-BINAP complex can effect the cooperative processes of decarbonylation of an aldehyde and cascaded enantioselective Pauson-Khand-type reaction. A survey of ligands revealed that atropisomeric aryl-diphosphine ligands were superior to chiral alkyl-diphosphines in this dual catalysis. Applying the reaction conditions of [IrCl(COD)](2)/(S)-BINAP complex with nonylaldehyde as a CO surrogate at 100 degrees C in anhydrous dioxane solvent, various 1,6-enynes were transformed to the corresponding optically active bicyclic cyclopentenones with excellent enantioselectivities (up to 98% ee). (c) 2006 Elsevier Ltd. All rights reserved.