(6R)-5,5,9-trimethyl-3-(2-methylpropoxy)spiro[5.5]undeca-2,9-dien-1-one | 1237493-55-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (6R)-5,5,9-trimethyl-3-(2-methylpropoxy)spiro[5.5]undeca-2,9-dien-1-one
• CAS: 1237493-55-8
• 化学式: C₁₈H₂₈O₂
• 分子量: 276.419
• InChiKey: SZAIEOYIUFPYOR-GOSISDBHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4
• 重原子数：
  20
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.72
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  (6R)-5,5-dimethyl-6-(3-methylbut-3-enyl)-3-(2-methylpropoxy)-6-prop-2-enylcyclohex-2-en-1-one 在 Stewart-Grubbs catalyst 作用下， 以 苯 为溶剂， 反应 11.5h， 以97%的产率得到(6R)-5,5,9-trimethyl-3-(2-methylpropoxy)spiro[5.5]undeca-2,9-dien-1-one
  参考文献：
  名称：

  A general enantioselective route to the chamigrene natural product family

  摘要：

  Described in this report is an enantioselective route toward the chamigrene natural product family. The key disconnections in our synthetic approach include sequential enantioselective decarboxylative allylation and ring-closing olefin metathesis to form the all-carbon quaternary stereocenter and spirocyclic core present in all members of this class of compounds. The generality of this strategy is demonstrated by the first total syntheses of elatol and the proposed structure of laurencenone B, as well as the first enantioselective total syntheses of laurencenone C and alpha-chamigrene. A brief exploration of the substrate scope of the enantioselective decarboxylative allylation/ring-closing metathesis sequence with fully substituted vinyl chlorides is also presented. (C) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2010.04.128

文献信息

• A general enantioselective route to the chamigrene natural product family
  作者：David E. White、Ian C. Stewart、Brinton A. Seashore-Ludlow、Robert H. Grubbs、Brian M. Stoltz

  DOI：10.1016/j.tet.2010.04.128

  日期：2010.6

  Described in this report is an enantioselective route toward the chamigrene natural product family. The key disconnections in our synthetic approach include sequential enantioselective decarboxylative allylation and ring-closing olefin metathesis to form the all-carbon quaternary stereocenter and spirocyclic core present in all members of this class of compounds. The generality of this strategy is demonstrated by the first total syntheses of elatol and the proposed structure of laurencenone B, as well as the first enantioselective total syntheses of laurencenone C and alpha-chamigrene. A brief exploration of the substrate scope of the enantioselective decarboxylative allylation/ring-closing metathesis sequence with fully substituted vinyl chlorides is also presented. (C) 2010 Elsevier Ltd. All rights reserved.