3-(1-(cyclohexylidenemethyl)vinyl)-1-oxaspiro[4.5]dec-3-ene | 459797-15-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氢呋喃
• 英文名称: 3-(1-(cyclohexylidenemethyl)vinyl)-1-oxaspiro[4.5]dec-3-ene
• 英文别名: 3-[1-(cyclohexylidenemethyl)vinyl]-1-oxaspiro[4.5]dec-3-ene；3-(3-Cyclohexylideneprop-1-en-2-yl)-1-oxaspiro[4.5]dec-3-ene
• CAS: 459797-15-0
• 化学式: C₁₈H₂₆O
• 分子量: 258.404
• InChiKey: NSEZHONDQJOOTC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.7
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  N-苯基马来酰亚胺 、 3-(1-(cyclohexylidenemethyl)vinyl)-1-oxaspiro[4.5]dec-3-ene 以 甲苯 为溶剂， 反应 5.0h， 以81%的产率得到(5aR,8aS,8bR)-4-(cyclohexylidenemethyl)-7-phenylspiro[5,5a,8a,8b-tetrahydro-3H-furo[3,4-e]isoindole-1,1'-cyclohexane]-6,8-dione
  参考文献：
  名称：

  PdCl 2 / NaI催化2,3-烯丙醇的同二聚偶合偶联环化反应：4-（1'，3'-Dien-2'-yl）-2,5-dihydrofuran衍生物的高效合成

  摘要：

  观察到PdCl 2 / NaI催化的2，3-烯丙醇的同二聚偶合-环化反应提供了通往4-（1'，3'-二烯-2'-基）-2，5-二氢呋喃衍生物的有效途径。通过使用容易获得的旋光起始原料，可以制备具有高对映体纯度的2，5-二氢呋喃。还讨论了Pd（II）催化的机理。

  DOI：

  10.1021/jo702332m
• 作为产物：
  描述：

  炔环己醇 在 二异丙胺 、 copper(I) bromide 、 palladium dichloride 作用下， 以 1,4-二氧六环 、 N,N-二甲基乙酰胺 为溶剂， 反应 4.0h， 生成 3-(1-(cyclohexylidenemethyl)vinyl)-1-oxaspiro[4.5]dec-3-ene
  参考文献：
  名称：

  Efficient Synthesis of 4-(2‘-Alkenyl)-2,5-dihydrofurans and 5,6-Dihydro-2H-pyrans via the Pd-Catalyzed Cyclizative Coupling Reaction of 2,3- or 3,4-Allenols with Allylic Halides

  摘要：

  In the absence of a base, palladium(II) catalysts, such as PdCl2, PdCl2(CH3CN)(2), Pd(OAc)(2), and [(pi-C3H5)PdCl](2), can catalyze the cyclizative coupling reaction of 2,3- or 3,4-allenols with allylic halides in DMA at room temperature to provide 2,5-dihydrofurans and 5,6-dihydro-2H-pyrans, respectively, in moderate to good yields. Under similar reaction conditions, nonsubstituted 2,3-allenol 1s affords bimolecular cyclizative coupling product 5s as the major product. The scope of the reaction and its mechanism have been studied briefly. On the basis of the experimental results, the transformation was believed to proceed via a divalent palladium-catalyzed pathway.

  DOI：

  10.1021/jo0163997

文献信息

• PdCl₂-Catalyzed Two-Component Cross-Coupling Cyclization of 2,3-Allenoic Acids with 2,3-Allenols. An Efficient Synthesis of 4-(1‘,3‘-Dien-2‘-yl)-2(5<i>H</i>)-furanone Derivatives
  作者：Shengming Ma、Zhenhua Gu

  DOI：10.1021/ja0500815

  日期：2005.5.1

  Cross-coupling cyclization reaction between 2,3-allenoic acids 1 and 2,3-allenols 2, in which two allenes functioned differently, was realized to afford 4-(1',3'-dien-2'-yl)-2(5H)-furanone derivatives 3. The reaction may proceed via an oxypalladation, insertion, and beta-hydroxide elimination process. A high E-stereoselectivity of the new formed C=C double bond was observed.

  实现了 2,3-丙烯酸 1 和 2,3-丙烯醇 2 之间的交叉偶联环化反应，其中两个丙二烯的功能不同，得到 4-(1',3'-dien-2'-yl)-2 (5H)-呋喃酮衍生物 3. 反应可以通过羟基钯化、插入和β-氢氧化物消除过程进行。观察到新形成的 C=C 双键的高 E 立体选择性。
• Efficient Synthesis of 4-(2‘-Alkenyl)-2,5-dihydrofurans and 5,6-Dihydro-2<i>H</i>-pyrans via the Pd-Catalyzed Cyclizative Coupling Reaction of 2,3- or 3,4-Allenols with Allylic Halides
  作者：Shengming Ma、Wenzhong Gao

  DOI：10.1021/jo0163997

  日期：2002.8.1

  In the absence of a base, palladium(II) catalysts, such as PdCl2, PdCl2(CH3CN)(2), Pd(OAc)(2), and [(pi-C3H5)PdCl](2), can catalyze the cyclizative coupling reaction of 2,3- or 3,4-allenols with allylic halides in DMA at room temperature to provide 2,5-dihydrofurans and 5,6-dihydro-2H-pyrans, respectively, in moderate to good yields. Under similar reaction conditions, nonsubstituted 2,3-allenol 1s affords bimolecular cyclizative coupling product 5s as the major product. The scope of the reaction and its mechanism have been studied briefly. On the basis of the experimental results, the transformation was believed to proceed via a divalent palladium-catalyzed pathway.
• PdCl₂/NaI-Catalyzed Homodimeric Coupling-Cyclization Reaction of 2,3-Allenols:  An Efficient Synthesis of 4-(1‘,3‘-Dien-2‘-yl)-2,5-dihydrofuran Derivatives
  作者：Youqian Deng、Yihua Yu、Shengming Ma

  DOI：10.1021/jo702332m

  日期：2008.1.1

  A PdCl2/NaI-catalyzed homodimeric coupling-cyclization reaction of 2,3-allenols was observed to provide an efficient route to 4-(1‘,3‘-dien-2‘-yl)-2,5-dihydrofuran derivatives. By using the easily available optically active starting materials, 2,5-dihydrofurans with high enantiopurity may be prepared. A Pd(II)-catalyzed mechanism was also discussed.

  观察到PdCl 2 / NaI催化的2，3-烯丙醇的同二聚偶合-环化反应提供了通往4-（1'，3'-二烯-2'-基）-2，5-二氢呋喃衍生物的有效途径。通过使用容易获得的旋光起始原料，可以制备具有高对映体纯度的2，5-二氢呋喃。还讨论了Pd（II）催化的机理。