(Z)-8-trityloxyoct-4-en-1-ol | 528840-86-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 三苯基化合物
• 英文名称: (Z)-8-trityloxyoct-4-en-1-ol
• CAS: 528840-86-0
• 化学式: C₂₇H₃₀O₂
• 分子量: 386.534
• InChiKey: TYXVYGMLDRYUDZ-UPHRSURJSA-N

物化性质

• 沸点：
  524.1±50.0 °C(Predicted)
• 密度：
  1.066±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  6
• 重原子数：
  29
• 可旋转键数：
  11
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.26
• 拓扑面积：
  29.5
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (Z)-8-trityloxyoct-4-en-1-ol 在 all(R)-3,4-bis[4-(2-Nph)-oxazolin-2-yl]-2-Me-2-Et-[1,3]-diox 、 mercury(II) trifluoroacetate 、 potassium carbonate 、 对甲苯磺酸 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 1.0h， 生成 4-(tetrahydrofuran-2-yl)butan-1-ol
  参考文献：
  名称：

  Enantioselective Mercuriocyclization of γ-Hydroxy-cis-alkenes

  摘要：

  Asymmetric mercuriocyclization of gamma-hydroxy-(Z)-alkenes has been achieved using Hg(II) complexed with tartrate-derived 4-(2-naphthyl)bisoxazoline as chiral ligand to give rise to 2-monosubstituted tetrahydrofurans in 86-95% ee. Not only the linker connecting two oxazolines but also their 4-substituents were found crucial for high enantioselectivity. In addition, tuning the ketal protecting group of tartrate as well as adding MeOH and K(2)CO(3) worked beneficially.

  DOI：

  10.1021/ja029777d
• 作为产物：
  描述：

  在 4-二甲氨基吡啶 、 4-甲基苯磺酸吡啶 、 三乙胺 作用下， 以 乙醇 、 二氯甲烷 为溶剂， 反应 28.0h， 生成 (Z)-8-trityloxyoct-4-en-1-ol
  参考文献：
  名称：

  Catalytic Enantioselective Iodocyclization of γ-Hydroxy-cis-alkenes

  摘要：

  Enantioselective iodocyclization of gamma-hydroxy-cis-alkenes has been achieved using I2 in the presence of an unprecedented catalyst system generated from (R,R)-t-Bu-salen-Co(II) complex and NCS to produce 2-monosubstituted tetrahydrofurans up to 90% ee. While NCS turned out to be the essential additive, neither (R,R)-salen-Co(II) nor (R,R)-salen-Co(III) by itself is likely to be the active species responsible for the asymmetric intramolecular iodoetherification.

  DOI：

  10.1021/ja0369921

文献信息

• Asymmetric Iodocyclization Catalyzed by Salen–CrIIICl: Its Synthetic Application to Swainsonine
  作者：Hyo Young Kwon、Chul Min Park、Sung Bae Lee、Joo-Hack Youn、Sung Ho Kang

  DOI：10.1002/chem.200701199

  日期：2008.1.18

  The previously developed enantioselective iodocyclization of gamma-hydroxy-cis-alkenes required 30 mol% of (R,R)-salen-Co(II) complex as chiral catalyst and 0.75 equivalent of N-chlorosuccinimide (NCS) as activator to produce 2-substituted tetrahydrofurans with 61 to 90% ee. Due to the considerable loading amount of the Co(II) complex, another more effective catalyst was pursued by screening (R,R)-salen-transition

  先前开发的γ-羟基-顺式烯烃的对映选择性碘环化需要30摩尔％的（R，R）-salen-Co（II）配合物作为手性催化剂和0.75当量的N-氯代琥珀酰亚胺（NCS）作为活化剂以生产2- ee为61至90％的取代四氢呋喃。由于Co（II）配合物的大量负载，通过筛选（R，R）-salen-过渡金属配合物寻求了另一种更有效的催化剂。当10摩尔％的催化剂应用0.5当量的NCS时，相应的Cr（III）Cl（84％ee），Mn（II）Cl（52％ee）和Co（II ）配合物（66％ee）。条件的完善建立了一种新的催化对映选择性碘环化方案，该方案使用碘在7摩尔％的被0活化的（R，R）-salen-Cr（III）Cl络合物存在下进行。
• Catalytic Enantioselective Iodocyclization of γ-Hydroxy-<i>cis</i>-alkenes
  作者：Sung Ho Kang、Sung Bae Lee、Chul Min Park

  DOI：10.1021/ja0369921

  日期：2003.12.1

  Enantioselective iodocyclization of gamma-hydroxy-cis-alkenes has been achieved using I2 in the presence of an unprecedented catalyst system generated from (R,R)-t-Bu-salen-Co(II) complex and NCS to produce 2-monosubstituted tetrahydrofurans up to 90% ee. While NCS turned out to be the essential additive, neither (R,R)-salen-Co(II) nor (R,R)-salen-Co(III) by itself is likely to be the active species responsible for the asymmetric intramolecular iodoetherification.
• Enantioselective Mercuriocyclization of γ-Hydroxy-<i>cis</i>-alkenes
  作者：Sung Ho Kang、Mihyong Kim

  DOI：10.1021/ja029777d

  日期：2003.4.1

  Asymmetric mercuriocyclization of gamma-hydroxy-(Z)-alkenes has been achieved using Hg(II) complexed with tartrate-derived 4-(2-naphthyl)bisoxazoline as chiral ligand to give rise to 2-monosubstituted tetrahydrofurans in 86-95% ee. Not only the linker connecting two oxazolines but also their 4-substituents were found crucial for high enantioselectivity. In addition, tuning the ketal protecting group of tartrate as well as adding MeOH and K(2)CO(3) worked beneficially.