3-(2'-chloroethyl)-2-oxocyclopentanecarboxylate

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3-(2'-chloroethyl)-2-oxocyclopentanecarboxylate
• 英文别名: Ethyl 3-(2-chloroethyl)-2-oxocyclopentane-1-carboxylate
• 化学式: C₁₀H₁₅ClO₃
• 分子量: 218.68
• InChiKey: VVIPQEQHVIVHSY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  14
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3-(2'-chloroethyl)-2-oxocyclopentanecarboxylate 在 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 四氢呋喃 为溶剂， 以87%的产率得到ethyl 3,3a,4,5-tetrahydro-2H-cyclopenta[b]furan-6-carboxylate
  参考文献：
  名称：

  Efficient Synthesis of Furan-2-ylacetates, 7-(Alkoxycarbonyl)benzofurans, and 7-(Alkoxycarbonyl)-2,3-dihydrobenzofurans Based on Cyclization Reactions of Free and Masked Dianions:  A “Cyclization/Dehydrogenation” Strategy

  摘要：

  A variety of furan-2-ylacetates have been prepared by dehydrogenation of monocyclic 2-alkylidene-tetrahydrofurans, which are readily available by cyclizations of open-chained 1,3-dicarbonyl dianions with 1-bromo-2-chloroethane. 5'H-[2,3']Bifuranyl-2'-ones are available based on sequential "cyclization/dehydrogenation" reactions of alpha-acetyl-gamma-butyrolactones. A variety of 7-(alkoxycarbonyl)-benzofarans and 7-(alkoxycarbonyl)-2,3-dihydrobenzofurans were prepared by a cyclization/ dehydrogenation strategy. These reactions rely on cyclizations of 2-oxocycloalkane-1-carboxylate/derived 1,3-dicarbonyl dianions ("free dianions") or 1,3-bis-silyl enol ethers ("masked dianions") with various 1,2-dielectrophiles.

  DOI：

  10.1021/jo051767i
• 作为产物：
  描述：

  2-氧代环戊羧酸乙酯 、 1-溴-2-氯乙烷 在 lithium diisopropyl amide 作用下， 以 四氢呋喃 为溶剂， 反应 42.0h， 以41%的产率得到3-(2'-chloroethyl)-2-oxocyclopentanecarboxylate
  参考文献：
  名称：

  Efficient Synthesis of Furan-2-ylacetates, 7-(Alkoxycarbonyl)benzofurans, and 7-(Alkoxycarbonyl)-2,3-dihydrobenzofurans Based on Cyclization Reactions of Free and Masked Dianions:  A “Cyclization/Dehydrogenation” Strategy

  摘要：

  A variety of furan-2-ylacetates have been prepared by dehydrogenation of monocyclic 2-alkylidene-tetrahydrofurans, which are readily available by cyclizations of open-chained 1,3-dicarbonyl dianions with 1-bromo-2-chloroethane. 5'H-[2,3']Bifuranyl-2'-ones are available based on sequential "cyclization/dehydrogenation" reactions of alpha-acetyl-gamma-butyrolactones. A variety of 7-(alkoxycarbonyl)-benzofarans and 7-(alkoxycarbonyl)-2,3-dihydrobenzofurans were prepared by a cyclization/ dehydrogenation strategy. These reactions rely on cyclizations of 2-oxocycloalkane-1-carboxylate/derived 1,3-dicarbonyl dianions ("free dianions") or 1,3-bis-silyl enol ethers ("masked dianions") with various 1,2-dielectrophiles.

  DOI：

  10.1021/jo051767i

文献信息

• Efficient Synthesis of Furan-2-ylacetates, 7-(Alkoxycarbonyl)benzofurans, and 7-(Alkoxycarbonyl)-2,3-dihydrobenzofurans Based on Cyclization Reactions of Free and Masked Dianions:  A “Cyclization/Dehydrogenation” Strategy
  作者：Esen Bellur、Peter Langer

  DOI：10.1021/jo051767i

  日期：2005.11.1

  A variety of furan-2-ylacetates have been prepared by dehydrogenation of monocyclic 2-alkylidene-tetrahydrofurans, which are readily available by cyclizations of open-chained 1,3-dicarbonyl dianions with 1-bromo-2-chloroethane. 5'H-[2,3']Bifuranyl-2'-ones are available based on sequential "cyclization/dehydrogenation" reactions of alpha-acetyl-gamma-butyrolactones. A variety of 7-(alkoxycarbonyl)-benzofarans and 7-(alkoxycarbonyl)-2,3-dihydrobenzofurans were prepared by a cyclization/ dehydrogenation strategy. These reactions rely on cyclizations of 2-oxocycloalkane-1-carboxylate/derived 1,3-dicarbonyl dianions ("free dianions") or 1,3-bis-silyl enol ethers ("masked dianions") with various 1,2-dielectrophiles.