ethyl (E,R)-5-hydroxy-3-oxo-7-phenylhept-6-enoate | 735287-46-4

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂醇
• 英文名称: ethyl (E,R)-5-hydroxy-3-oxo-7-phenylhept-6-enoate
• 英文别名: ethyl (E,5R)-5-hydroxy-3-oxo-7-phenylhept-6-enoate
• CAS: 735287-46-4
• 化学式: C₁₅H₁₈O₄
• 分子量: 262.306
• InChiKey: NWNVDMRKXHDQDL-XEHSLEBBSA-N

物化性质

• 沸点：
  446.1±45.0 °C(Predicted)
• 密度：
  1.150±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  19
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  63.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  ethyl (E,R)-5-hydroxy-3-oxo-7-phenylhept-6-enoate 在 Grubbs catalyst first generation 、 titanium(IV) isopropylate 、 4-二甲氨基吡啶 、 2-iodoxybenzoic acid 、 camphor-10-sulfonic acid 、 (R)-1,1'-Bi-2-naphthol 、 二异丁基氢化铝 、 溶剂黄146 、 三乙胺 、 silver(l) oxide 、 tetramethylammonium triacetoxyborohydride 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 二甲基亚砜 、 乙腈 为溶剂， 反应 43.0h， 生成 隐甲藻
  参考文献：
  名称：

  通过不对称的醛醇缩合反应全合成（-）-双甘氨酸A和（+）-cryptofolione

  摘要：

  基于从Chan's二烯开始的不对称醛醇缩合反应，已经描述了两个独特的吡喃酮骨架双皂甙A和隐叶酮的立体选择性合成。合成策略包括对映选择性Mukaiyama羟醛，非对映选择性还原δ-羟基-β-酮酸酯，一连串的脱保护序列以及分子内的oxa-Michael反应以获得双桥皂苷A以及使用闭环易位反应形成不对称的烯丙基化和内酯形成获得隐氟利酮。

  DOI：

  10.1016/j.tetlet.2010.12.070
• 作为产物：
  描述：

  (3R,4E)-3-(tert-butyldimethylsilanyloxy)-5-phenylpent-4-enal 在 tin(ll) chloride 四丁基氟化铵 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 2.67h， 生成 ethyl (E,R)-5-hydroxy-3-oxo-7-phenylhept-6-enoate
  参考文献：
  名称：

  Application of the Cosford cross-coupling protocol for the stereoselective synthesis of (R)-(+)-goniothalamin, (R)-(+)-kavain and (S)-(+)-7,8-dihydrokavain

  摘要：

  An efficient and versatile synthetic method has been developed and utilized for the stereoselective synthesis of (R)-(+)goniothalamin 1, (R)-(+)-kavain 2 and (S)-(+)-7,8-dihydrokavain 3. Application of the Cosford protocol and direct conversion of aldehydes to P-keto-esters are the key steps in our approach. (c) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2006.09.122

文献信息

• Chemoenzymatic synthesis of enantiomerically enriched kavalactones
  作者：Ahmed Kamal、Tadiparthi Krishnaji、G.B. Ramesh Khanna

  DOI：10.1016/j.tetlet.2006.09.155

  日期：2006.12

  methyl-3-hydroxy-5-phenylpentanoate and (6E)-ethyl 5-hydroxy-3-oxo-7-phenylhept-6-enoate is described in high enantiomeric excess and good yields. The effect of different lipases in different solvents has been screened using different acylating agents. This protocol has been extended for the preparation of enantiomerically pure biologically important kavalactones.

  甲基-3-羟基-5-苯基戊和（6的脂肪酶介导的动力学拆分ë） -乙基-5-羟基-3-氧代-7-苯基庚-6-烯酸甲酯在高对映体过量和良好的产率进行说明。已经使用不同的酰化剂筛选了不同脂肪酶在不同溶剂中的作用。该方案已被扩展用于制备对映体纯的生物学上重要的卡伐内酯。
• Versatile Asymmetric Synthesis of the Kavalactones:  First Synthesis of (+)-Kavain
  作者：Thomas E. Smith、Mabel Djang、Alan J. Velander、C. Wade Downey、Kathleen A. Carroll、Sophie van Alphen

  DOI：10.1021/ol0493960

  日期：2004.7.1

  Three asymmetric pathways to the kavalactones have been developed. The first method is chiral auxiliary-based and utilizes aldol reactions of N-acetyl thiazolidinethiones followed by a malonate displacement/decarboxylation reaction. The second approach uses the asymmetric catalytic Mukaiyama additions of dienolate nucleophile equivalents developed by Carreira and Sato. Finally, tin-substituted intermediates, prepared by either of these routes, can serve as advanced general precursors of kavalactone derivatives via Pd(0)-catalyzed Stille couplings with aryl halides.
• Total synthesis of cryptomoscatone F1 through an asymmetric aldol approach
  作者：Perla Ramesh、Atla Raju、Nitin W. Fadnavis

  DOI：10.1016/j.tetasy.2015.09.011

  日期：2015.12

  A stereoselective total synthesis of naturally occurring styryl lactone, cryptomoscatone F1 is described. A Mukaiyama asymmetric aldol reaction, Brown's asymmetric allylation, Maruoka asymmetric allylation, and cross metathesis were used as the key steps. (C) 2015 Elsevier Ltd. All rights reserved.
• Total synthesis of (−)-diospongin A and (+)-cryptofolione via asymmetric aldol reaction
  作者：Rayala Naveen Kumar、H.M. Meshram

  DOI：10.1016/j.tetlet.2010.12.070

  日期：2011.3

  Stereoselective synthesis of two distinctive pyranone skeletons diospongin A and cryptofolione has been described based on an asymmetric aldol reaction starting from Chan’s diene. The synthetic strategy involves the enantioselective Mukaiyama aldol, diastereoselective reduction of δ-hydroxy-β-keto ester, a tandem sequence of deprotection, and intramolecular oxa-Michael reaction to obtain diospongin

  基于从Chan's二烯开始的不对称醛醇缩合反应，已经描述了两个独特的吡喃酮骨架双皂甙A和隐叶酮的立体选择性合成。合成策略包括对映选择性Mukaiyama羟醛，非对映选择性还原δ-羟基-β-酮酸酯，一连串的脱保护序列以及分子内的oxa-Michael反应以获得双桥皂苷A以及使用闭环易位反应形成不对称的烯丙基化和内酯形成获得隐氟利酮。
• Application of the Cosford cross-coupling protocol for the stereoselective synthesis of (R)-(+)-goniothalamin, (R)-(+)-kavain and (S)-(+)-7,8-dihydrokavain
  作者：Gowravaram Sabitha、K. Sudhakar、J.S. Yadav

  DOI：10.1016/j.tetlet.2006.09.122

  日期：2006.11

  An efficient and versatile synthetic method has been developed and utilized for the stereoselective synthesis of (R)-(+)goniothalamin 1, (R)-(+)-kavain 2 and (S)-(+)-7,8-dihydrokavain 3. Application of the Cosford protocol and direct conversion of aldehydes to P-keto-esters are the key steps in our approach. (c) 2006 Elsevier Ltd. All rights reserved.