(S)-2-((S)-1-Benzyloxymethoxy-ethyl)-2,3-dihydro-pyran-4-one | 184246-47-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃
• 英文名称: (S)-2-((S)-1-Benzyloxymethoxy-ethyl)-2,3-dihydro-pyran-4-one
• 英文别名: (2S)-2-[(1S)-1-(phenylmethoxymethoxy)ethyl]-2,3-dihydropyran-4-one
• CAS: 184246-47-7
• 化学式: C₁₅H₁₈O₄
• 分子量: 262.306
• InChiKey: YWQFSRLIXLEGQG-WFASDCNBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  19
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  44.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (S)-2-((S)-1-Benzyloxymethoxy-ethyl)-2,3-dihydro-pyran-4-one 在 吡啶 、 咪唑 、 sodium tetrahydroborate 、 sodium periodate 、 正丁基锂 、 cerium(III) chloride 、 四丁基氟化铵 、 氨 、 sodium 、 二甲基二环氧乙烷 、 四氯化锡 、 sodium hydride 、 potassium carbonate 、 戴斯-马丁氧化剂 、 三乙胺 、 2,3-二氯-5,6-二氰基-1,4-苯醌 、 lithium hexamethyldisilazane 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 7.0h， 生成 (E,2S)-3-methyl-4-(2-methyl-1,3-thiazol-4-yl)-1-[(2S,3R)-3-prop-2-enyloxiran-2-yl]but-3-en-2-ol
  参考文献：
  名称：

  Total Syntheses of Epothilones A and B

  摘要：

  Convergent, stereocontrolled total syntheses of the microtubule-stabilizing macrolides epothilones A (2) and B (3) have been achieved. Four distinct ring-forming strategies were pursued (see Scheme 1). Of these four, three were reduced to practice. In one approach, the action of a base on a substance possessing an acetate ester and a nonenolizable aldehyde brought about a remarkably effective macroaldolization see (89 --> 90 + 91; 99 --> 100 + 101), simultaneously creating the C2-C3 bond and the hydroxyl-bearing stereocenter at C-3. Alternatively, the 16-membered macrolide of the epothilones could be fashioned through a C12-C13 ring-closing olefin metathesis (e.g. see 111 --> 90 + 117; 122 --> 105 + 123) and through macrolactonization of the appropriate hydroxy acid (e.g. see 88 --> 93). The application of a stereospecific B-alkyl Suzuki coupling strategy permitted the establishment of a cis C12-C13 olefin, thus setting the stage for an eventual site-and diastereoselective epoxidation reaction (see 96 --> 2; 106 --> 3). The development of a novel cyclopropane solvolysis strategy for incorporating the geminal methyl groups of the epothilones (see 39 --> 40 --> 41), and the use of Lewis acid catalyzed diene-aldehyde cyclocondensation (LACDAC) (see 35 + 36 --> 37) and asymmetric allylation (see 10 --> 76) methodology are also noteworthy.

  DOI：

  10.1021/ja971946k
• 作为产物：
  描述：

  (S)-(benzyloxymethoxy)propanal 在 溶剂黄146 、 magnesium bromide 作用下， 以 四氢呋喃 、 水 为溶剂， 生成 (S)-2-((S)-1-Benzyloxymethoxy-ethyl)-2,3-dihydro-pyran-4-one
  参考文献：
  名称：

  Total Syntheses of Epothilones A and B

  摘要：

  Convergent, stereocontrolled total syntheses of the microtubule-stabilizing macrolides epothilones A (2) and B (3) have been achieved. Four distinct ring-forming strategies were pursued (see Scheme 1). Of these four, three were reduced to practice. In one approach, the action of a base on a substance possessing an acetate ester and a nonenolizable aldehyde brought about a remarkably effective macroaldolization see (89 --> 90 + 91; 99 --> 100 + 101), simultaneously creating the C2-C3 bond and the hydroxyl-bearing stereocenter at C-3. Alternatively, the 16-membered macrolide of the epothilones could be fashioned through a C12-C13 ring-closing olefin metathesis (e.g. see 111 --> 90 + 117; 122 --> 105 + 123) and through macrolactonization of the appropriate hydroxy acid (e.g. see 88 --> 93). The application of a stereospecific B-alkyl Suzuki coupling strategy permitted the establishment of a cis C12-C13 olefin, thus setting the stage for an eventual site-and diastereoselective epoxidation reaction (see 96 --> 2; 106 --> 3). The development of a novel cyclopropane solvolysis strategy for incorporating the geminal methyl groups of the epothilones (see 39 --> 40 --> 41), and the use of Lewis acid catalyzed diene-aldehyde cyclocondensation (LACDAC) (see 35 + 36 --> 37) and asymmetric allylation (see 10 --> 76) methodology are also noteworthy.

  DOI：

  10.1021/ja971946k

文献信息

• Studies toward a Synthesis of Epothilone A:  Use of Hydropyran Templates for the Management of Acyclic Stereochemical Relationships
  作者：Dongfang Meng、Erik J. Sorensen、Peter Bertinato、Samuel J. Danishefsky

  DOI：10.1021/jo961673w

  日期：1996.11.15