ethyl (6R,7R)-4,5-dihydroxy-2,4-octadienoate | 143192-07-8

• 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 (6R,7R)-4,5-dihydroxy-2,4-octadienoate
• 英文别名: ethyl (2E,4E,6R,7R)-6,7-dihydroxyocta-2,4-dienoate
• CAS: 143192-07-8
• 化学式: C₁₀H₁₆O₄
• 分子量: 200.235
• InChiKey: XAOBHDNHGNOFFL-SFFUMFFGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  14
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  66.8
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  (E,E)-2,4-己二烯醛 在 四氧化锇 、 (DHQ)2-PHAL 甲基磺酰胺 、 potassium carbonate 、 potassium hexacyanoferrate(III) 作用下， 以 水 、 叔丁醇 为溶剂， 生成 ethyl (6R,7R)-4,5-dihydroxy-2,4-octadienoate
  参考文献：
  名称：

  De Novo Asymmetric Synthesis of Anamarine and Its Analogues

  摘要：

  The enantioselective synthesis of anamarine has been achieved in 21 steps. The route relies on enantio- and regioselective Sharpless dihydroxylation of dienoate ester and zinc borohydride reduction to establish the C-8-C-11 stereochemistry. A diastereoselective Leighton allylation established the desired C-5 stereochemistry. The route has also been used to prepare two diastereoisomers of anamarine in 14 steps.

  DOI：

  10.1021/jo051681p

文献信息

• Remote steric effect on the regioselectivity of Sharpless asymmetric dihydroxylation
  作者：Yan Zhang、George A. O'Doherty

  DOI：10.1016/j.tet.2005.03.119

  日期：2005.6

  Studies on the regioselectivities for the Sharpless asymmetric dillydroxylation (AD) of conjugated dienoates, trienoates, dienones and dienamides are described. Excellent regioselectivities were obtained in straight chain dienoates, all trienoates, ketones damicles. The remote branched iso-propyl and tert-butyl groups of dienoates greatly lowered the normally excellent regiocontrol. This observation is rationalized in terms of substrate conformational changes, and the steric interaction between the branched methyl group of iso-propyl ortertbutyl groups and the ethyl group Oil the (DHQD)(2)PHAL ligand. (c) 2005 Elsevier Ltd. All rights reserved.
• Xu, Daqiang; Crispino, Gerard A.; Sharpless, K. Barry, Journal of the American Chemical Society, 1992, vol. 114, # 19, p. 7570 - 7571
  作者：Xu, Daqiang、Crispino, Gerard A.、Sharpless, K. Barry

  DOI：——

  日期：——
• Enantioselective Synthesis of 10-<i>e</i><i>pi</i>-Anamarine via an Iterative Dihydroxylation Sequence
  作者：Dong Gao、George A. O'Doherty

  DOI：10.1021/ol047322i

  日期：2005.3.1

  The enantioselective syntheses of 10-epi-anamarine and 5,10-epi,epi-anamarine have been achieved in 13 to 14 steps. The route relies upon an enantio- and regioselective Sharpless dihydroxylation of either dienoates or trienoates to establish the C-8 to C-11 stereochemistry. A diastereoselective Leighton allylation established the desired C-5 stereochemistry. The route also relies upon a ring-closing metathesis to establish the alpha,beta-unsaturated lactones.
• De Novo Asymmetric Synthesis of Anamarine and Its Analogues
  作者：Dong Gao、George A. O'Doherty

  DOI：10.1021/jo051681p

  日期：2005.11.1

  The enantioselective synthesis of anamarine has been achieved in 21 steps. The route relies on enantio- and regioselective Sharpless dihydroxylation of dienoate ester and zinc borohydride reduction to establish the C-8-C-11 stereochemistry. A diastereoselective Leighton allylation established the desired C-5 stereochemistry. The route has also been used to prepare two diastereoisomers of anamarine in 14 steps.