(B)-γ-2-methoxyethoxymethoxyallyldiisocampheylborane | 139609-23-7

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: (B)-γ-2-methoxyethoxymethoxyallyldiisocampheylborane
• 英文别名: [(Z)-3-(2-methoxyethoxymethoxy)prop-2-enyl]-bis[(1R,2S,3R,5R)-2,6,6-trimethyl-3-bicyclo[3.1.1]heptanyl]borane
• CAS: 139609-23-7
• 化学式: C₂₇H₄₇BO₃
• 分子量: 430.479
• InChiKey: WJQBQIWLGRPMNG-RTYVTGNWSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.78
• 重原子数：
  31
• 可旋转键数：
  10
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.93
• 拓扑面积：
  27.7
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (B)-γ-2-methoxyethoxymethoxyallyldiisocampheylborane 在 RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 吡啶 、 sodium hydroxide 、 四氧化锇 、 N-甲基吲哚酮 、 双氧水 作用下， 以 水 、 丙酮 、 甲苯 为溶剂， 反应 9.0h， 生成 (3S,4R,5S,6S)-3,4-dihydroxy-5-methoxyethoxymethoxy-6-phenyltetrahydropyran-2-one
  参考文献：
  名称：

  Diastereoselective Dihydroxylation and Regioselective Deoxygenation of Dihydropyranones:  A Novel Protocol for the Stereoselective Synthesis of C₁−C₈ and C₁₅−C₂₁ Subunits of (+)-Discodermolide

  摘要：

  Diastereoselective dihydroxylation of dihydropyranones and subsequent regioselective alpha-deoxygenation provides 1,3-trans-beta-hydroxy-delta-lactones stereoselectively. This protocol has been applied for the synthesis of C-1-C-8 and C-15-C-21 subunits of (+)-discodermolide.

  DOI：

  10.1021/jo0492416
• 作为产物：
  描述：

  3-((2-methoxyethoxy)methoxy)prop-1-ene 、 (-)-B-methoxydiisopinocampheylborane 在 potassium tert-butylate 、 仲丁基锂 、 三氟化硼乙醚 作用下， 以 四氢呋喃 为溶剂， 生成 (B)-γ-2-methoxyethoxymethoxyallyldiisocampheylborane
  参考文献：
  名称：

  非对映异构体和对映异构体过量的来自氟苄腈的γ-氟苯基-GABA衍生物

  摘要：

  在甲醇存在下，通过将相应的氟化N-铝联苯二胺与B-烯丙基二ii基樟脑基硼烷进行烯丙基硼化，然后进行碱性过氧化氢处理，实现了α-氟芳基均烯丙基胺的对映选择性合成，产率为52-71％，对映选择性为76-93％。。这些aluminobenzaldimines与钾的Crotylboration乙-甲氧基乙- ë -或- Ž -crotyldiisopinocampheylborinate提供相应的β-抗或-顺式-甲基α-fluoroarylhomoallylamines，分别在高德和EE。同样，用锂B进行烷氧基烯丙基化-甲氧基B -γ-OMEMallyldiisopinocampheylborinate提供优秀的de和ee的相应的β-顺-烷氧基高烯丙基胺。通过氢硼化-氧化将这些氨基烯烃的代表转化为相应的具有光学活性的N -Boc保护的氟化氨基醇。进一步的铬介导的氧化提供了N -Boc保护的γ-氟苯

  DOI：

  10.1016/j.jfluchem.2008.10.002

文献信息

• Asymmetric synthesis of 6-(2′,3′,4′,5′,6′-pentafluorophenyl)-δ-lactones via “allyl”boranes: application for the synthesis of fluorinated analog of key pharmacophore of statin drugs
  作者：P.Veeraraghavan Ramachandran、Kamlesh J Padiya、Vivek Rauniyar、M.Venkat Ram Reddy、Herbert C Brown

  DOI：10.1016/j.jfluchem.2004.01.005

  日期：2004.4

  Asymmetric "allyl"boration of pentafluorobenzaldehyde with various alpha-pinene based "allyl"boranes provides homoallylic alcohols in high de and ee; the alcohols have been converted into delta-lactones via acryloylation, ring-closing metathesis and hydrogenation. Pentafluorophenyl analog of key pharmacophore of statin drugs has been synthesized using diastereoselective epoxidation and regioselective reduction as key steps. (C) 2004 Elsevier B.V. All rights reserved.
• Diastereoselective Dihydroxylation and Regioselective Deoxygenation of Dihydropyranones:  A Novel Protocol for the Stereoselective Synthesis of C₁−C₈ and C₁₅−C₂₁ Subunits of (+)-Discodermolide
  作者：P. Veeraraghavan Ramachandran、Bodhuri Prabhudas、J. Subash Chandra、M. Venkat Ram Reddy

  DOI：10.1021/jo0492416

  日期：2004.9.1

  Diastereoselective dihydroxylation of dihydropyranones and subsequent regioselective alpha-deoxygenation provides 1,3-trans-beta-hydroxy-delta-lactones stereoselectively. This protocol has been applied for the synthesis of C-1-C-8 and C-15-C-21 subunits of (+)-discodermolide.
• γ-Fluorophenyl-GABA derivatives from fluorobenzonitriles in high diastereomeric and enantiomeric excess
  作者：P. Veeraraghavan Ramachandran、G. Venkat Reddy、Debanjan Biswas

  DOI：10.1016/j.jfluchem.2008.10.002

  日期：2009.2

  An enantioselective synthesis of α-fluoroaryl homoallylic amines in 52–71% yields and 76–93% enantioselectivities has been achieved via the allylboration of the corresponding fluorinated N-aluminobenzaldimines with B-allyldiisopinocampheylborane in the presence of methanol, followed by alkaline hydrogen peroxide workup. Crotylboration of these aluminobenzaldimines with potassium B-methoxy B-E- or

  在甲醇存在下，通过将相应的氟化N-铝联苯二胺与B-烯丙基二ii基樟脑基硼烷进行烯丙基硼化，然后进行碱性过氧化氢处理，实现了α-氟芳基均烯丙基胺的对映选择性合成，产率为52-71％，对映选择性为76-93％。。这些aluminobenzaldimines与钾的Crotylboration乙-甲氧基乙- ë -或- Ž -crotyldiisopinocampheylborinate提供相应的β-抗或-顺式-甲基α-fluoroarylhomoallylamines，分别在高德和EE。同样，用锂B进行烷氧基烯丙基化-甲氧基B -γ-OMEMallyldiisopinocampheylborinate提供优秀的de和ee的相应的β-顺-烷氧基高烯丙基胺。通过氢硼化-氧化将这些氨基烯烃的代表转化为相应的具有光学活性的N -Boc保护的氟化氨基醇。进一步的铬介导的氧化提供了N -Boc保护的γ-氟苯