(5R,2E)-5-(tert-butyl-dimethyl-silyloxy)-hex-2-enoic acid | 133522-13-1

• 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: (5R,2E)-5-(tert-butyl-dimethyl-silyloxy)-hex-2-enoic acid
• 英文别名: (-)-(5R,2E)-5-(tert-butyldimethylsilyloxy)hexenoic acid；(R,E)-5-((tert-butyldimethylsilyl)oxy)hex-2-enoic acid；(2E,5R)-5-t-butyldimethylsiloxy-2-hexenoic acid；(R)-5-t-Butyldimethylsiloxy-2-hexenoic acid；(E,5R)-5-[tert-butyl(dimethyl)silyl]oxyhex-2-enoic acid
• CAS: 133522-13-1
• 化学式: C₁₂H₂₄O₃Si
• 分子量: 244.406
• InChiKey: DAHNOIMDEUNRHA-TTZKWOQHSA-N

物化性质

• 沸点：
  312.7±25.0 °C(Predicted)
• 密度：
  0.949±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.43
• 重原子数：
  16
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (5R,2E)-5-(tert-butyl-dimethyl-silyloxy)-hex-2-enoic acid 在 4-二甲氨基吡啶 、 lithium hydroxide 、 四丁基氟化铵 、 三乙胺 、 N,N'-二环己基碳二亚胺 、 苯甲酸 作用下， 以 四氢呋喃 、 乙醚 、 二氯甲烷 、 甲苯 为溶剂， 反应 129.5h， 生成 (3E,6R,9E,11R,12R,14R)-11,12-(isopropylidenedioxy)-6,14-dimethyl-1,7-dioxacyclotetradeca-3,9-diene-2,8-dione
  参考文献：
  名称：

  A Short and Enantioselective Synthesis of Colletodiol

  摘要：

  以交叉耦合偏析和 Sharpless 二羟基化反应为关键步骤，实现了 12 步对映体选择性合成可乐定。

  DOI：

  10.1055/s-2005-871562
• 作为产物：
  描述：

  (R)-4-<(tert-butyldimethylsilyl)oxy>-1-pentene 在 2,6-二甲基吡啶 、 甲醇 、 sodium periodate 、 四氧化锇 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 lithium hydroxide 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 水 、 甲苯 为溶剂， 反应 4.25h， 生成 (5R,2E)-5-(tert-butyl-dimethyl-silyloxy)-hex-2-enoic acid
  参考文献：
  名称：

  通过脯氨酸催化的α-氨基羟化和山口大内酯化法 合成（-）-（6 R，11 R，14 S）-Collallallol †

  摘要：

  以高度非对映选择性的方式以高总收率实现了14元大环内酯（-）-（6 R，11 R，14 S）-Collallallol的简单有效合成。使用脯氨酸催化的α-氨氧基化反应生成立体异构中心，并使用Yamaguchi方案构建环。

  DOI：

  10.1039/c6ra08484b

文献信息

• Chiral Synthesis of (−)-Colletol Based on Palladium-Catalyzed Reductive Cleavage of Alkenyloxiranes with Formic Acid
  作者：Isao Shimizu、Tetsuya Omura

  DOI：10.1246/cl.1993.1759

  日期：1993.10

  Total synthesis of (−)-colletol was achieved using palladium-catalyzed hydrogenolysis of optically active (E)-4,5-epoxy-2-alkenoates to (E)-5-hydroxy-2-alkenoates with formic acid as a key step for preparation of the intermediate hydroxy ester segments.

  (-)-colletol 的全合成是通过钯催化氢解旋光 (E)-4,5-epoxy-2-alkenoates 为 (E)-5-hydroxy-2-alkenoates 与甲酸作为关键步骤用于制备中间羟基酯链段。
• Total Synthesis of Grahamimycin A₁
  作者：Kazuo Ohta、Osamu Miyagawa、Hironori Tsutsui、Oyo Mitsunobu

  DOI：10.1246/bcsj.66.523

  日期：1993.2

  grahamimycin A1 (1). The O-7–C-14 fragment [(4S,5S,7R)- or (4R,5R,7R)-7-hydroxy-4,5-isopropylidenedioxyoctanoate] was synthesized from 4,6-dideoxy-α-D-xylo -hexopyranoside. Condensation of the both fragments, followed by deprotection at the terminal hydroxyl- and carboxyl-functions afforded the seco acids of the precursors of 1. While the reaction of the seco acids having 13S-configuration with diethyl azodicarboxylate

  (3R)- 和 (3S)-3-羟基丁酸酯分别转化为 (2E,5R)- 和 (2E,5S)-5-t-丁基二甲基甲硅烷氧基-2-己烯酸，对应于 O-1-C-6 Grahamimycin A1 (1) 的片段。O-7–C-14 片段 [(4S,5S,7R)- 或 (4R,5R,7R)-7-hydroxy-4,5-isopropylidenedioxyoctanoate] 由 4,6-dideoxy-α-D-合成木糖苷。两个片段的缩合，然后在末端羟基和羧基官能团上脱保护得到前体 1 的 seco 酸。 而具有 13S-构型的 seco 酸与偶氮二羧酸二乙酯和三苯基膦的反应在低浓度下提供相应的内酯产率，具有 13R-构型的癸二酸通过 Yamaguchi 程序的大环内酯化以 56% 的产率得到所需的内酯。
• Enantioselective Syntheses of Colletodiol, Colletol, and Grahamimycin A
  作者：Thomas J. Hunter、George A. O'Doherty

  DOI：10.1021/ol0269502

  日期：2002.12.1

  [GRAPHICS]The enantioselective synthesis of colletodiol has been achieved in 11 steps from methyl 1,3,5-octatrienoate and 16 total steps from both ethyl sorbate and methyl 1,3,5-octatrienoate. The route relies upon an enantio- and regioselective Sharpless dihydroxylation and a palladium-catalyzed reduction to form a 5-hydroxy-1-enoate and an 7-hydroxy-1,3-dienoate. These esters were further functionalized, coupled, and macrolactonized to provide colletodiol after deprotection. Grahamimycin A and colletol were synthesized in one and two steps, respectively, from colletodiol.
• Formal total synthesis of grahamimycin A1
  作者：Kazuo Ohta、Oyo Mitsunobu

  DOI：10.1016/s0040-4039(00)79484-6

  日期：1991.1

  (S)-t-Butyldimethylsiloxy-2-hexenoic acid and its (R)-isomer were prepared from (S)- and (R)-3-hydroxybutanoic acid esters, respectively. Condensation of the both isomers with 2-(ptoluenesulfonyl)ethyl (4S,5S,7R)-7-hydroxy-4,5-dimethylmethylenedioxyoctanoate, synthesized from methyl 4,6-dideoxy -alpha-D-xylo-hexopyranoside, gave the corresponding esters which were converted into precursors of seco acids of grahamimycin A1 with S or R configuration at the C-6 position (grahamimycin A1 numbering). The (6S)- and (6R)-isomers were respectively subjected to macrolactonization by the use of diethyl azodicarboxylate-triphenylphosphine system or Yamaguchi procedure to afford 11, 12-dihydroxy-grahamimycin A1 whose oxidation to grahamimycin A1 has already been reported.
• Enantioselective Synthesis of the Unsymmetrical Bis(lactone) (−)-(3E,6R,9E,12S,14R)-Colletol Induced by Chiral Sulfoxides and an Approach to (+)-Colletodiol by Asymmetric Hydroxylation of an α,β-Hydroxy Lactone
  作者：Guy Solladié、Laurence Gressot、Françoise Colobert

  DOI：10.1002/(sici)1099-0690(200001)2000:2<357::aid-ejoc357>3.0.co;2-n

  日期：2000.1

  A general synthetic strategy towards the two bis(lactones) (-)-colletol (1) and (+)-colletodiol (2) is described. A common intermediate in this synthesis is the 6-membered hydroxy lactone (+)-(3R,SR)-3-hydroxy-5-hexanolide (6), readily prepared by stereoselective reduction of (+)-(SR)-methyl 3,5-dioxo -6-(p-toluenesulfinyl)hexanoate (7). Stereoselective hydroxylation of this hydroxy lactone has allowed efficient access to (+)-colletodiol(2).