(6E,8S,9R,10S)-8,9-(isopropylidenedioxy)-8-(methoxycarbonyl)-10-methyl-4-methylene-6-dodecen-1-al | 148586-37-2

• 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: (6E,8S,9R,10S)-8,9-(isopropylidenedioxy)-8-(methoxycarbonyl)-10-methyl-4-methylene-6-dodecen-1-al
• 英文别名: methyl (4S,5R)-5-[(2S)-butan-2-yl]-2,2-dimethyl-4-[(E)-4-methylidene-7-oxohept-1-enyl]-1,3-dioxolane-4-carboxylate
• CAS: 148586-37-2
• 化学式: C₁₉H₃₀O₅
• 分子量: 338.444
• InChiKey: QREUMRWHSPREEJ-UPLWXXMRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  24
• 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：
  61.8
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (6E,8S,9R,10S)-8,9-(isopropylidenedioxy)-8-(methoxycarbonyl)-10-methyl-4-methylene-6-dodecen-1-al 在 sodium chlorite 作用下， 以89%的产率得到(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：

  Total synthesis of alternaric acid

  摘要：

  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.

  DOI：

  10.1016/s0040-4039(00)77605-2
• 作为产物：
  描述：

  衣康酸二甲酯 在 bis(dibenzylideneacetone)-palladium⁽⁰⁾ 吡啶 、 咪唑 、 4-二甲氨基吡啶 、 sodium amalgam 、 lithium aluminium tetrahydride 、 三氯化铝 、 草酰氯 、 三丁基膦 、 二苯基二硒醚 、 四丁基氟化铵 、 水 、 双氧水 、 sodium hydride 、 对甲苯磺酸 、 溶剂黄146 、 二甲基亚砜 、 三乙胺 、 1,2-双(二苯基膦)乙烷 、 sodium chloride 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 甲醇 、 乙醚 、 正己烷 、 二氯甲烷 、 二甲基亚砜 、 乙酸乙酯 、 N,N-二甲基甲酰胺 、 苯 为溶剂， 反应 117.91h， 生成 (6E,8S,9R,10S)-8,9-(isopropylidenedioxy)-8-(methoxycarbonyl)-10-methyl-4-methylene-6-dodecen-1-al
  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

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.