ethyl 5-(tert-butyldimethylsilyloxy)-2,2-dimethylpentanoate | 864719-05-1

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: ethyl 5-(tert-butyldimethylsilyloxy)-2,2-dimethylpentanoate
• 英文别名: 5-(tert-Butyl-dimethyl-silanyloxy)-2,2-dimethyl-pentanoic Acid ethyl Ester；ethyl 5-[tert-butyl(dimethyl)silyl]oxy-2,2-dimethylpentanoate
• CAS: 864719-05-1
• 化学式: C₁₅H₃₂O₃Si
• 分子量: 288.503
• InChiKey: WCCNDPWNWAMIOH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.38
• 重原子数：
  19
• 可旋转键数：
  9
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.93
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  ethyl 5-(tert-butyldimethylsilyloxy)-2,2-dimethylpentanoate 在 lithium aluminium tetrahydride 、 正丁基锂 、 四丁基氟化铵 、 pyridinium chlorochromate 作用下， 以 四氢呋喃 、 乙醚 、 二氯甲烷 为溶剂， 反应 4.0h， 生成 4,4-dimethylhex-5-enal
  参考文献：
  名称：

  Efficient Construction of the Oxatricyclo[6.3.1.0^0,0]dodecane Core of Komaroviquinone Using a Cyclization/Cycloaddition Cascade of a Rhodium Carbenoid Intermediate

  摘要：

  The rhodium(ll)-catalyzed cyclization/cycloaddition cascade of a o-carbomethoxyaryl diazo dione is described as a potential route to the oxatricyclo[6.3.1.0(0,0)]dodecane substructure of the icetexane diterpene komaroviquinone. The initially formed carbonyl ylide dipole prefers to cyclize to an epoxide at 25 degrees C but can be induced to undergo cycloaddition across the tethered pi-bond at higher temperatures.

  DOI：

  10.1021/ol0513589
• 作为产物：
  描述：

  2,2-二甲基戊-4-烯酸乙酯 在 咪唑 、 4-二甲氨基吡啶 、 9-borabicyclo[3.3.1]nonane dimer 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 反应 5.0h， 生成 ethyl 5-(tert-butyldimethylsilyloxy)-2,2-dimethylpentanoate
  参考文献：
  名称：

  Efficient Construction of the Oxatricyclo[6.3.1.0^0,0]dodecane Core of Komaroviquinone Using a Cyclization/Cycloaddition Cascade of a Rhodium Carbenoid Intermediate

  摘要：

  The rhodium(ll)-catalyzed cyclization/cycloaddition cascade of a o-carbomethoxyaryl diazo dione is described as a potential route to the oxatricyclo[6.3.1.0(0,0)]dodecane substructure of the icetexane diterpene komaroviquinone. The initially formed carbonyl ylide dipole prefers to cyclize to an epoxide at 25 degrees C but can be induced to undergo cycloaddition across the tethered pi-bond at higher temperatures.

  DOI：

  10.1021/ol0513589

文献信息

• DIHYDROPYRIMIDIN-2-ONE COMPOUNDS AND MEDICAL USE THEREOF
  申请人：JAPAN TOBACCO INC.

  公开号：US20160194290A1

  公开（公告）日：2016-07-07

  A compound of Formula [I] or a pharmaceutically acceptable salt thereof: wherein each symbol is defined as in the specification.

  化合物的结构式[I]或其药用盐：其中每个符号的定义如规范中所述。
• A Rh(II)-catalyzed cycloaddition approach toward the synthesis of komaroviquinone
  作者：Albert Padwa、Majid J. Chughtai、Jutatip Boonsombat、Paitoon Rashatasakhon

  DOI：10.1016/j.tet.2008.01.129

  日期：2008.5

  Using a rhodium (II)-catalyzed cyclization/cycloaddition sequence as the key reaction step, the icetexane core of komaroviquinone was constructed by an intramolecular dipolar-cycloaddition of a carbonyl ylide dipole across a tethered pi-bond. The ylide was arrived at by cyclization of a rhodium carbenoid intermediate onto a proximal ester group. Efforts toward the preparation of the required precursor for elaboration to the natural product are discussed. (C) 2008 Elsevier Ltd. All rights reserved.