(1R,3S)-4-methylenespiropent-1-ylmethanol | 321857-32-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (1R,3S)-4-methylenespiropent-1-ylmethanol
• 英文别名: [(1R,3S)-4-methylenespiropentyl]methanol；(1R,3S)-4-methylenespiropentylmethanol；[(3S,5R)-2-methylidenespiro[2.2]pentan-5-yl]methanol
• CAS: 321857-32-3
• 化学式: C₇H₁₀O
• 分子量: 110.156
• InChiKey: CNTUITHGMNLOOZ-BQBZGAKWSA-N

物化性质

• 沸点：
  167.3±9.0 °C(Predicted)
• 密度：
  1.09±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  8
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.71
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (1R,3S)-4-methylenespiropent-1-ylmethanol 在 氢氧化钾 、 苄基三乙基氯化铵 、 4-甲基苯磺酸吡啶 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 生成 (1R,3S,4R)-(5,5-dibromodispiro[2.0.2.1]hept-1-yl)methanol
  参考文献：
  名称：

  对映体纯的高级[n-2]三角烷基二甲醇衍生物和[n]三角烷烃（n> / = 7）的收敛途径。

  摘要：

  DOI：

  10.1002/anie.200461166
• 作为产物：
  描述：

  乙酸乙烯酯 、 (rac-4-methylenespiropentyl)methanol 在 Lipase PS 作用下， 以 乙醚 为溶剂， 反应 12.0h， 生成 (1R,3S)-4-methylenespiropent-1-ylmethanol 、 [(1S,3R)-4-methylenespiropent-1-yl]methyl acetate
  参考文献：
  名称：

  The First Enantiomerically Pure [n]Triangulanes and Analogues: σ-[n]Helicenes with Remarkable Features

  摘要：

  (M)-(-)- and (P)-(+)-Thspiro-[2.0.0.2.1.1]nonanes [(M)- and (P)-3] as well as (M)-(-)- and (P)-(+)-tetraspiro[2.0.0.0.2.1.1.1]undecanes [(M)- and (P)4]-enantiomerically pure unbranched [4]- and [5]triangulanes-have been prepared starting from racemic bicyclopropylidenecarboxylic [(1RS)-12] and exo-dispiro[2.0.2.1]heptane-1-carboxylic [(lRS,3SR)-13] acids. The optical resolutions of rac-12 and rac-13 furnished enantiomerically pure acids (S)-(+)12, (R)-(-)-12, (1R,3S)-(-)-13, and (1S,3R)-(+)-13. The ethyl ester (R)-25 of the acid (R)-(-)-12 was cyclopropanated to give carboxylates (1R,3R)-26 and (1R,3S)-26. The ester (IR,3S)-26 and acids (1R,3S)-13 and (IS,3R)-13 were converted into enantiomerically pure methylene[3]triangulanes (S)-(-)and (R)-(+)-28. An alternative approach consisted of an enzymatic deracemization of endo-[(1SR,3SR)-dispiro[2.0.2. 1]heptyl] methanol (rac-20) or anti- [(1SR.3RS)-4-methylenespiropentyl]methanol (rac-18). This afforded (S)-(-)- and (R)-(+)-28 (starting from rac-20), as well as enantiomerically pure (M)-(-)- and (P)-(+)-l,4-dimethylenespiropentanes [(M)- and (P)-23] starting from rac-18. The methylenetriangulanes (S)-(-)- and (R)-(+)-28 were cyclopropanated furnishing (M)- and (P)-3. The rhodium-catalyzed cycloaddition of ethyl diazoacetate onto (S)-(-)- and (R)(+)-28 yielded four diastereomeric ethyl trispiro[2.0.0.2.1.1]nonane-1-carboxylates in approximately equal proportions. The enantiomerically pure esters (1R,3S,4S)- and (1S,3R,4R)-30 were isolated by careful distillation and then transformed into [5]triangulanes (M)and (P)-4 using the same sequence of reactions Lis applied for (M)- and (P)-3. The structures of the key intermediates (R)-12 and rac-31 were confirmed by X-ray analyses. Although [4]- and [5]triangulanes have no chromophore which would lead to any significant absorption above 200 nm. they have remarkably high specific rotations even at 589 nm with [alpha](20)(1)) = -192.7 [(M)-3, c=1.18, CHCl3)] or + 373.0 [(P)-4, c=1.18, CHCl3]. This remarkable optical rotatation is in line with their helical arrangement of sigma bonds, as confirmed by a full valence space single excitation configuration interaction treatment (SCI) in conjunction with DFT computations at the B3LYP/TZVP//B3LYP/6-31 +G(d,p) level of theory which reproduce the ORD very well. Thus, it is appropriate to call the helically shaped unbranched [n]triangulanes the "sigma-[n]helicenes", representing the sigma-bond analogues of the aromatic [n]helicenes.

  DOI：

  10.1002/1521-3765(20020215)8:4<828::aid-chem828>3.0.co;2-y

文献信息

• Syntheses and Properties of Enantiomerically Pure Higher (n ≥ 7) [n−2]Triangulanedimethanols and σ-[n]Helicenes
  作者：Armin de Meijere、Alexander F. Khlebnikov、Sergei I. Kozhushkov、Dmitrii S. Yufit、Olga V. Chetina、Judith A. K. Howard、Takuya Kurahashi、Kazutoshi Miyazawa、Daniel Frank、Peter R. Schreiner、B. Christopher Rinderspacher、Mari Fujisawa、Chiyo Yamamoto、Yoshio Okamoto

  DOI：10.1002/chem.200600111

  日期：2006.7.24

  lower members (n=4, 5) of the sigma-[n]helicenes. For the higher ones (n=7, 9, 15) the computed specific rotations turn out increasingly larger than the experimental values. The remarkable increase of the specific rotation with an increasing number of three-membered rings is proportional neither to the molecular weight nor to the number of cyclopropane rings in these sigma-[n]helicenes.

  （P）-（+）-Hexaspiro [2.0.0.0。0.0.2.1.1.1.1.1]十五烷[（P）-17]以及（M）-（-）-和（P）-（+）-八倍体[2.0.0.0.0.0.0.0.2.1.1.1。 1.1.1.1]从外消旋THP保护的（亚甲基环丙基）甲醇6开始制备[[M]-和（P）-25]对映体纯的直链[7]-和[9]三角烷的壬二烷[6]。所有重要的中间体以及关键中间体的绝对构型均通过X射线晶体结构分析确定。对n = 7、9的对映体纯线性[n]三角烷酮的这种新的收敛方法也已在针对[15]三角烷的两个变体中进行了测试。新制备的化合物的一些最突出和出乎意料的特征是二醇（P）-14，（E）-（3S，3'S，4S，4'S，5R，5'R）-的自组装显着模式21，（P）-（+）-22，和（E）-31处于固态，通过分子间氢键的构架，取决于各自的结构，导致纳米管-[（P）-14，（P）-（+）-22和（E）-31
• Miyazawa; Yufit; Howard, European Journal of Organic Chemistry, 2000, # 24, p. 4109 - 4117
  作者：Miyazawa、Yufit、Howard、De Meijere

  DOI：——

  日期：——
• A Convergent Route to Enantiomerically Pure Higher [n?2]Triangulanedimethanol Derivatives and [n]Triangulanes (n?7)
  作者：Armin de Meijere、Alexander F. Khlebnikov、Sergei I. Kozhushkov、Kazutoshi Miyazawa、Daniel Frank、Peter R. Schreiner、B. Christopher Rinderspacher、Dmitrii S. Yufit、Judith A. K. Howard

  DOI：10.1002/anie.200461166

  日期：2004.12.3
• The First Enantiomerically Pure [n]Triangulanes and Analogues: σ-[n]Helicenes with Remarkable Features
  作者：Armin de Meijere、Alexander F. Khlebnikov、Sergei I. Kozhushkov、Rafael R. Kostikov、Peter R. Schreiner、Alexander Wittkopp、Christopher Rinderspacher、Henning Menzel、Dmitrii S. Yufit、Judith A. K. Howard

  DOI：10.1002/1521-3765(20020215)8:4<828::aid-chem828>3.0.co;2-y

  日期：2002.2.15

  (M)-(-)- and (P)-(+)-Thspiro-[2.0.0.2.1.1]nonanes [(M)- and (P)-3] as well as (M)-(-)- and (P)-(+)-tetraspiro[2.0.0.0.2.1.1.1]undecanes [(M)- and (P)4]-enantiomerically pure unbranched [4]- and [5]triangulanes-have been prepared starting from racemic bicyclopropylidenecarboxylic [(1RS)-12] and exo-dispiro[2.0.2.1]heptane-1-carboxylic [(lRS,3SR)-13] acids. The optical resolutions of rac-12 and rac-13 furnished enantiomerically pure acids (S)-(+)12, (R)-(-)-12, (1R,3S)-(-)-13, and (1S,3R)-(+)-13. The ethyl ester (R)-25 of the acid (R)-(-)-12 was cyclopropanated to give carboxylates (1R,3R)-26 and (1R,3S)-26. The ester (IR,3S)-26 and acids (1R,3S)-13 and (IS,3R)-13 were converted into enantiomerically pure methylene[3]triangulanes (S)-(-)and (R)-(+)-28. An alternative approach consisted of an enzymatic deracemization of endo-[(1SR,3SR)-dispiro[2.0.2. 1]heptyl] methanol (rac-20) or anti- [(1SR.3RS)-4-methylenespiropentyl]methanol (rac-18). This afforded (S)-(-)- and (R)-(+)-28 (starting from rac-20), as well as enantiomerically pure (M)-(-)- and (P)-(+)-l,4-dimethylenespiropentanes [(M)- and (P)-23] starting from rac-18. The methylenetriangulanes (S)-(-)- and (R)-(+)-28 were cyclopropanated furnishing (M)- and (P)-3. The rhodium-catalyzed cycloaddition of ethyl diazoacetate onto (S)-(-)- and (R)(+)-28 yielded four diastereomeric ethyl trispiro[2.0.0.2.1.1]nonane-1-carboxylates in approximately equal proportions. The enantiomerically pure esters (1R,3S,4S)- and (1S,3R,4R)-30 were isolated by careful distillation and then transformed into [5]triangulanes (M)and (P)-4 using the same sequence of reactions Lis applied for (M)- and (P)-3. The structures of the key intermediates (R)-12 and rac-31 were confirmed by X-ray analyses. Although [4]- and [5]triangulanes have no chromophore which would lead to any significant absorption above 200 nm. they have remarkably high specific rotations even at 589 nm with [alpha](20)(1)) = -192.7 [(M)-3, c=1.18, CHCl3)] or + 373.0 [(P)-4, c=1.18, CHCl3]. This remarkable optical rotatation is in line with their helical arrangement of sigma bonds, as confirmed by a full valence space single excitation configuration interaction treatment (SCI) in conjunction with DFT computations at the B3LYP/TZVP//B3LYP/6-31 +G(d,p) level of theory which reproduce the ORD very well. Thus, it is appropriate to call the helically shaped unbranched [n]triangulanes the "sigma-[n]helicenes", representing the sigma-bond analogues of the aromatic [n]helicenes.