(4E,11R)-11-hydroxy-4-oxo-2-dodecenoic acid | 179618-46-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 酮酸及其衍生物
• 英文名称: (4E,11R)-11-hydroxy-4-oxo-2-dodecenoic acid
• 英文别名: (E,11R)-11-hydroxy-4-oxododec-2-enoic acid
• CAS: 179618-46-3
• 化学式: C₁₂H₂₀O₄
• 分子量: 228.288
• InChiKey: NQQITYFRVVORHP-AAXQSMANSA-N

物化性质

• 沸点：
  400.4±30.0 °C(Predicted)
• 密度：
  1.087±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  16
• 可旋转键数：
  9
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  74.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (4E,11R)-11-hydroxy-4-oxo-2-dodecenoic acid 在 4-二甲氨基吡啶 、 2,4,6-三氯苯甲酰氯 、 三乙胺 作用下， 生成 (+)-(12R)-12-methyloxacyclododec-3E-ene-2,5-dione
  参考文献：
  名称：

  Total synthesis of R-(+)-patulolide A and R-(−)-patulolide B: The macrolides isolated from Penicillium urticae mutant

  摘要：

  The title compounds (2E,11R)-4-oxo-2-dodecen-11-olide, 1 and (2Z,11R)-4-oxo-2-dodecen-11-olide, 2 were synthesised in optically pure forms from a nitroalkane synthon involving a chiral resolution step using goat liver lipase. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(99)00164-7
• 作为产物：
  描述：

  5-bromo-1-(2-furyl)pentane 在 CuCN 吡啶 、 N-溴代丁二酰亚胺(NBS) 、 lithium aluminium tetrahydride 、 2-甲基-2-丁烯 、 sodium perchlorate 、 magnesium 作用下， 以 四氢呋喃 、 水 、 丙酮 、 叔丁醇 为溶剂， 反应 6.5h， 生成 (4E,11R)-11-hydroxy-4-oxo-2-dodecenoic acid
  参考文献：
  名称：

  Two-step conversion of 2-substituted furans into γ-oxo-α,β-unsaturated carboxylic acids. Formal synthesis of (+)-patulolide A and (−)-pyrenophorin

  摘要：

  NBS oxidation of 2-substituted furans 9 and 15 followed by further oxidation of the enals with NaClO2 afforded the acids II and 17 in good yields, which are the intermediates of(+)-patulolide A and (-)-pyrenophorin, respectively. Copyright (C) 1996 Elsevier Science Ltd

  DOI：

  10.1016/0040-4039(96)00857-x

文献信息

• Efficient Conditions for Conversion of 2-Substituted Furans into 4-Oxygenated 2-Enoic Acids and Its Application to Synthesis of (+)-Aspicilin, (+)-Patulolide A, and (−)-Pyrenophorin
  作者：Yuichi Kobayashi、Miwa Nakano、G. Biju Kumar、Kiyonobu Kishihara

  DOI：10.1021/jo980942a

  日期：1998.10.1

  the ester 6. Stereocontrolled reduction of 6 followed by deprotection and the Yamaguchi macrocyclization furnished (+)-aspicilin. For the synthesis of (+)-patulolide (Scheme 3) and (-)-pyrenophorin (Scheme 4), the intermediates are the furans 38 and 44, which were prepared easily by the classical methods using furyllithium 33. The furan ring oxidations proceeded as well, furnishing acids 40 and 46 in

  通过在THF-丙酮-H（2）O中使用NBS /吡啶，发现2-取代的呋喃1a，b，c可以方便地转化为反式4-氧-2-烯醛2a，b，c，产率为62-87％ （<-15摄氏度，然后室温）或NBS / NaHCO（3）在丙酮-H（2）O中的溶液（<-15摄氏度，然后在添加吡啶后室温）。使用NaClO（2）进一步氧化烯类2a-c导致反式4-氧代-2-烯酸3a-c的产率很高。考虑到这种转变，我们设计了（+）-aspicilin，（+）-patulolide和（-）-pyrenophorin的合成。如路线1和2所示，在合成（+）-阿斯匹林林中，关键中间体6由其中连接有2-呋喃基的烯烃7制备。7的AD反应确保了Aspicilin的C（5）和C（6）立体化学，随后使用上述方案进行的转化获得了酯6。立体控制还原6，然后脱保护并由Yamaguchi大环化提供（+）-aspicilin。对于合成（+）-巴特洛利德
• Expedient Synthesis of (<i>R</i>)-Patulolide A
  作者：A. Sharma、S. Sankaranarayanan、S. Chattopadhyay

  DOI：10.1021/jo951339k

  日期：1996.1.1

  An efficient derivation of the title compound has been formulated from easily accessible 10-undecenoic acid(1). Thus, dodec-11-en-2-ol (3), prepared from 1, was pyranylated and subjected to bromination with NBS followed by acetolysis to furnish (2E)-1-acetoxy-11-(tetrahydropyranyloxy)-dodec-2-ene (5). Its hydrolysis, oxidation, and depyranylation afforded the (2E)-hydroxy ester (9). This, on Candida rugosa lipase-catalyzed acetylation, SeO2 oxidation, hydrolysis, and Yamaguchi macrolactonization, led to (R)-patulolide A (I) with 67.1% ee. The enantiomeric excess was improved to 97% by first resolving the alcohol 3 via porcine pancreatic lipase catalyzed acetylation and converting the corresponding (R)-acetate (13) to I as done above.