(E)-7-[(4S,5R)-5-[(2S)-butan-2-yl]-4-methoxycarbonyl-2,2-dimethyl-1,3-dioxolan-4-yl]-4-methylidenehept-6-enoic acid | 148586-28-1

• 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: (E)-7-[(4S,5R)-5-[(2S)-butan-2-yl]-4-methoxycarbonyl-2,2-dimethyl-1,3-dioxolan-4-yl]-4-methylidenehept-6-enoic acid
• CAS: 148586-28-1
• 化学式: C₁₉H₃₀O₆
• 分子量: 354.444
• InChiKey: KJFKPHGYHQIDMN-HSIKFQBDSA-N

物化性质

• 沸点：
  454.7±45.0 °C(predicted)
• 密度：
  1.101±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  25
• 可旋转键数：
  10
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.68
• 拓扑面积：
  82.1
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  (E)-7-[(4S,5R)-5-[(2S)-butan-2-yl]-4-methoxycarbonyl-2,2-dimethyl-1,3-dioxolan-4-yl]-4-methylidenehept-6-enoic acid 在 4-二甲氨基吡啶 、 lithium hydroxide 、 N,N'-二环己基碳二亚胺 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 为溶剂， 反应 36.83h， 生成 (4S,5R)-5-((S)-sec-Butyl)-4-[(E)-7-((R)-4-hydroxy-6-methyl-2-oxo-5,6-dihydro-2H-pyran-3-yl)-4-methylene-7-oxo-hept-1-enyl]-2,2-dimethyl-[1,3]dioxolane-4-carboxylic acid
  参考文献：
  名称：

  Total Synthesis and Stereochemistry of Alternaric Acid

  摘要：

  Determination of the stereochemistry and the total synthesis of alternaric acid 1 has been achieved. The stereostructure of 1 has been elucidated by stereoselective synthesis of four diastereoisomers of the C(9)-C(14) fragment 6, which had been obtained as a degradation product during structural studies. Key reactions of the total synthesis of 1 include the Julia olefination of tertiary aldehyde 6 and phenylsulfone 7 and novel one-pot construction of 3-acyl-4-hydroxy-5,6-dihydro-2-pyrone via Fries-type rearrangement of the O-enol acyl group of beta-keto-delta-valerolactone toward the a-position of the delta-lactone. The absolute configuration of alternaric acid has been shown to be that illustrated in structure 1. The modified Fries-type rearrangement method has also been extended to the synthesis of some other compounds containing a tricarbonylmethane structure.

  DOI：

  10.1021/jo00096a016
• 作为产物：
  描述：

  (S)-2-甲基丁醛 在 (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride 、 potassium phosphate 、 ammonium hexafluorophosphate 、 四氧化锇 、 9-borabicyclo[3.3.1]nonane dimer 、 2-硝基苯基丝氰酸酯 、 (cyclooctadienyl)(cyclopentadienyl)ruthenium chloride 、 三丁基膦 、 甲基磺酰胺 、 camphor-10-sulfonic acid 、 双氧水 、 溴 、 碳酸氢钠 、 potassium carbonate 、 氟化氢吡啶 、 氢化奎尼定 1,4-(2,3-二氮杂萘)二醚 、 三乙胺 、 potassium hexacyanoferrate(III) 作用下， 以 甲醇 、 二氯甲烷 、 丙酮 、 叔丁醇 为溶剂， 反应 234.5h， 生成 (E)-7-[(4S,5R)-5-[(2S)-butan-2-yl]-4-methoxycarbonyl-2,2-dimethyl-1,3-dioxolan-4-yl]-4-methylidenehept-6-enoic acid
  参考文献：
  名称：

  钌催化的桤木烯型反应。交替酸的正式合成

  摘要：

  Alternaric acid 是一种纳摩尔真菌萌发抑制剂，以 1,4-二烯为代表，由末端亚甲基和 (E)-1,2-二取代烯烃组成。合成含有这种功能的天然产物的新策略源于钌催化末端烯烃与末端炔烃的加成。炔底物 4-戊炔酸是可商购的或可以通过乙酸叔丁酯的烷基化分两步制备。烯烃底物由市售的(S)-2-甲基-1-丁醇制备。该合成涉及通过涉及 Pd 催化的交叉偶联和不对称二羟基化来形成几何定义的三取代烯烃。钌催化偶联在没有醇保护基团的情况下进行得最好，以最大限度地提高区域选择性。这里说明的这种添加的例子有助于阐明控制区域选择性的一些重要因素。它们还说明了优异的化学选择性。天...

  DOI：

  10.1021/ja981540n

文献信息

• Total synthesis of alternaric acid
  作者：Hiroyasu Tabuchi、Taisuke Hamamoto、Shokyo Miki、Tsuyoshi Tejima、Akitami Ichihara

  DOI：10.1016/s0040-4039(00)77605-2

  日期：1993.4

  A total synthesis of alternaric acid (1) has been achieved. Key reactions include the Julia olefination of tertiary aldehyde 4 and phenylsulfone 5, and novel one-pot construction of 3-acyl-4-hydroxy-5,6-dihydropyrone via Fries type rearrangement of O-enolacyl group of beta-keto-delta-valerolactone toward alpha-position of the delta-lactone. The absolute configuration of alternaric acid has been shown to be that illustrated in structure 1.
• Total Synthesis and Stereochemistry of Alternaric Acid
  作者：Hiroyasu Tabuchi、Taisuke Hamamoto、Shokyo Miki、Tsuyoshi Tejima、Akitami Ichihara

  DOI：10.1021/jo00096a016

  日期：1994.8

  Determination of the stereochemistry and the total synthesis of alternaric acid 1 has been achieved. The stereostructure of 1 has been elucidated by stereoselective synthesis of four diastereoisomers of the C(9)-C(14) fragment 6, which had been obtained as a degradation product during structural studies. Key reactions of the total synthesis of 1 include the Julia olefination of tertiary aldehyde 6 and phenylsulfone 7 and novel one-pot construction of 3-acyl-4-hydroxy-5,6-dihydro-2-pyrone via Fries-type rearrangement of the O-enol acyl group of beta-keto-delta-valerolactone toward the a-position of the delta-lactone. The absolute configuration of alternaric acid has been shown to be that illustrated in structure 1. The modified Fries-type rearrangement method has also been extended to the synthesis of some other compounds containing a tricarbonylmethane structure.
• Ruthenium-Catalyzed Alder Ene Type Reactions. A Formal Synthesis of Alternaric Acid
  作者：Barry M. Trost、Gary D. Probst、Andreas Schoop

  DOI：10.1021/ja981540n

  日期：1998.9.1

  by involving Pd-catalyzed cross-coupling and asymmetric dihydroxylation. The ruthenium-catalyzed coupling proceeds best in the absence of alcohol protecting groups to maximize regioselectivity. The examples of this addition illustrated herein help elucidate some of the important factors controlling regioselectivity. They also illustrate the excellent chemoselectivity. T...

  Alternaric acid 是一种纳摩尔真菌萌发抑制剂，以 1,4-二烯为代表，由末端亚甲基和 (E)-1,2-二取代烯烃组成。合成含有这种功能的天然产物的新策略源于钌催化末端烯烃与末端炔烃的加成。炔底物 4-戊炔酸是可商购的或可以通过乙酸叔丁酯的烷基化分两步制备。烯烃底物由市售的(S)-2-甲基-1-丁醇制备。该合成涉及通过涉及 Pd 催化的交叉偶联和不对称二羟基化来形成几何定义的三取代烯烃。钌催化偶联在没有醇保护基团的情况下进行得最好，以最大限度地提高区域选择性。这里说明的这种添加的例子有助于阐明控制区域选择性的一些重要因素。它们还说明了优异的化学选择性。天...