(R)-4-((triisopropylsilyl)oxy)cyclopent-2-enone | 1514902-96-5

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: (R)-4-((triisopropylsilyl)oxy)cyclopent-2-enone
• 英文别名: (R)-4-triisopropylsilyloxycyclopent-2-en-1-one；(4R)-4-tri(propan-2-yl)silyloxycyclopent-2-en-1-one
• CAS: 1514902-96-5
• 化学式: C₁₄H₂₆O₂Si
• 分子量: 254.445
• InChiKey: NJVXKMSYMSYSCQ-AWEZNQCLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.08
• 重原子数：
  17
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.79
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (R)-4-((triisopropylsilyl)oxy)cyclopent-2-enone 在 吡啶 、 碘 作用下， 以 乙醚 为溶剂， 反应 24.0h， 以85%的产率得到(R)-2-iodo-4-((triisopropylsilyl)oxy)cyclopent-2-enone
  参考文献：
  名称：

  Stereodivergent Synthesis of Enantioenriched 4-Hydroxy-2-cyclopentenones

  摘要：

  Protected 4-hydroxycyclopentenones (4-HCPs) constitute an important class of intermediates in chemical synthesis. A route to this class of compound has been developed. Key steps include Noyori reduction (which establishes the stereochemistry of the product), ring-closing metathesis, and simple functional group conversions to provide a set of substituted 4-HCPs in either enantiomeric form.

  DOI：

  10.1021/jo402539p
• 作为产物：
  描述：

  2,4-戊二酮,1,5-二氯 在 Grubbs catalyst first generation 、 正丁基锂 、 [(S)-2,2'-双(二苯基磷)-1,1'-联萘]二氯化钌(II) 、 氢气 、 pyridinium chlorochromate 作用下， 以 四氢呋喃 、 甲醇 、 正己烷 、 二氯甲烷 为溶剂， 反应 7.33h， 生成 (R)-4-((triisopropylsilyl)oxy)cyclopent-2-enone
  参考文献：
  名称：

  Stereodivergent Synthesis of Enantioenriched 4-Hydroxy-2-cyclopentenones

  摘要：

  Protected 4-hydroxycyclopentenones (4-HCPs) constitute an important class of intermediates in chemical synthesis. A route to this class of compound has been developed. Key steps include Noyori reduction (which establishes the stereochemistry of the product), ring-closing metathesis, and simple functional group conversions to provide a set of substituted 4-HCPs in either enantiomeric form.

  DOI：

  10.1021/jo402539p

文献信息

• Chemoenzymatic routes to cyclopentenols: the role of protecting groups on stereo- and enantioselectivity
  作者：Simon Specklin、Anna Dikova、Aurélien Blanc、Jean-Marc Weibel、Patrick Pale

  DOI：10.1016/j.tetlet.2014.10.105

  日期：2014.12

  lyloxycyclopent-2-en-1-one was very efficiently obtained from diacetate of cis-cyclopent-2-en-1,3-diol using enzymatic desymmetrization with CAL-B. In these sequences, TIPS proved to be the best protecting group.

  对映体（R）-4-三异丙基甲硅烷氧基环戊-2-烯-1-酮是通过短序列获得的，这些短序列包括外消旋顺式-4-三异丙基甲硅烷氧基环戊-2-烯-1-醇的酶促拆分或顺式-环戊基-的酶促脱对称化。2-en-1,3-二醇。另外，对映体（S）-4-三异丙基甲硅烷基氧基环戊-2-烯-1-酮可以通过用CAL-B酶促脱对称从顺式-环戊-2-烯-1,3-二醇的二乙酸酯中非常有效地获得。在这些序列中，TIPS被证明是最佳的保护基团。
• Stereodivergent Synthesis of Enantioenriched 4-Hydroxy-2-cyclopentenones
  作者：Gurpreet Singh、Angelica Meyer、Jeffrey Aubé

  DOI：10.1021/jo402539p

  日期：2014.1.3

  Protected 4-hydroxycyclopentenones (4-HCPs) constitute an important class of intermediates in chemical synthesis. A route to this class of compound has been developed. Key steps include Noyori reduction (which establishes the stereochemistry of the product), ring-closing metathesis, and simple functional group conversions to provide a set of substituted 4-HCPs in either enantiomeric form.