2,2-dibutyloxirane | 37399-02-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 环氧化物
• 英文名称: 2,2-dibutyloxirane
• CAS: 37399-02-3
• 化学式: C₁₀H₂₀O
• 分子量: 156.268
• InChiKey: HRFPBPXCSQCKCK-UHFFFAOYSA-N

物化性质

• 沸点：
  193.0±8.0 °C(Predicted)
• 密度：
  0.849±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  11
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  12.5
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2,2-dibutyloxirane 在 三氟化硼乙醚 作用下， 以 苯 为溶剂， 反应 0.02h， 生成 二-正丁基乙醛
  参考文献：
  名称：

  Antiarthritic and supressor cell inducing activity of azaspiranes: structure-function relationships of a novel class of immunomodulatory agents

  摘要：

  Spirogermanium (1; 8,8-diethyl-N,N-dimethyl-2-aza-8- germaspiro[4.5]decane-2-propanamine dihydrochloride) is a potent cytotoxic agent in vitro which has demonstrated limited activity in experimental animal tumor models. Subsequently, it has been reported that spirogermanium has antiarthritic and suppressor cell-inducing activity. We have synthesized a series of substituted 8-hetero-2-azaspiro[4.5]decane and 9-hetero-3-azaspiro[5.5]undecane analogues of spirogermanium to identify the heteroatom requirements for in vivo antiarthritic and suppressor cell-inducing activity. This structure-activity relationship study has identified that appropriately substituted silicon and carbon analogues of spirogermanium retain both antiarthritic and immunosuppressive activity, with the 8,8-dipropyl (carbon) analogue being among the most active. Following the identification of N,N-dimethyl-8,8-dipropyl-2-azaspiro[4.5]decane-2-propanamine++ + dihydrochloride (9) as a more active analogue than spirogermanium, a series of 8,8-dipropyl analogues with various amine substituents were synthesized. A number of these analogues had activity similar to that of 9. A correlation between activity in the adjuvant arthritic rat and the ability to induce suppressor cells (r = 0.894, p less than 0.001) suggests an association between the two pharmacologic effects. While the precise biochemical mechanism(s) for the pharmacological activity is unclear, these data suggest that compounds within this series, e.g., N,N-dimethyl-8,8-dipropyl-2-azaspiro[4.5]decane-2-propanamine++ + dihydrochloride, may provide effective therapy in diseases of autoimmune origin and/or the prevention of rejection in tissue transplantation.

  DOI：

  10.1021/jm00173a010
• 作为产物：
  描述：

  5-壬酮 在 sodium hydride 、 间氯过氧苯甲酸 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 4.0h， 生成 2,2-dibutyloxirane
  参考文献：
  名称：

  Pd(OAc)2/P(cC6H11)3-通过逆烯丙基化催化芳基卤与高烯丙醇烯丙基化

  摘要：

  在碳酸铯和钯催化剂存在下用芳基卤处理叔高烯丙醇时发生芳基卤的烯丙基化。烯丙基化反应将由以下步骤组成：（1）芳基卤化物与钯的氧化加成，（2）卤化物和高烯丙醇之间的配体交换，提供芳基（高烯丙氧基）钯，（3）钯醇盐的逆烯丙基化生成σ-烯丙基（芳基）钯，同时释放相关酮，和 (4) 生产性还原消除。由于逆烯丙基化步骤通过构象调节的六元环状过渡态以协同方式进行，因此当使用具有取代烯丙基的高烯丙醇时，烯丙基化反应具有高度的区域和立体定向性。虽然已知三芳基膦可作为钯催化的烯丙基转移反应的配体，但三环己基膦证明可以将芳基卤化物的范围显着扩展到富电子的芳基氯化物，将高烯丙醇的范围扩大到环状高烯丙醇。环状高烯丙醇的新芳基化开环反应允许以区域和立体特异性方式合成在远端具有支化或线性烯丙基芳烃部分的酮。

  DOI：

  10.1021/ja067372d

文献信息

• New Methodology for the Conversion of Epoxides to Alkenes
  作者：Feng-Ling Wu、Benjamin P. Ross、Ross P. McGeary

  DOI：10.1002/ejoc.200901264

  日期：2010.4

  Epoxides have been transformed in good yields to alkenes by a process involving (i) ring-opening of the epoxide with 2-mercaptobenzothiazole, (ii) oxidation of the derived s-hydroxy thioethers to the corresponding sulfones, and (iii) thermal or base-promoted fragmentation of these sulfones to alkenes. The stereochemistry of the starting epoxide is transfer-red faithfully to the alkene product, because

  环氧化物已通过以下过程以良好的收率转化为烯烃，包括 (i) 环氧化物与 2-巯基苯并噻唑的开环，(ii) 衍生的 s-羟基硫醚氧化为相应的砜，以及 (iii) 热或碱- 促进这些砜碎裂成烯烃。由于 SN2 环氧化物开环反应和 s-烷氧基亚磺酸盐中间体的反周面 SO2 消除反应，起始环氧化物的立体化学忠实地转移到烯烃产物上。这种方法可能构成新的烯烃保护基策略的基础。© 2010 Wiley-VCH Verlag GmbH & Co. KGaA。
• Radical Titanocene Promoted Coupling of Epoxides and Vinyl Sulfones
  作者：Alfonso Fernández-Mateos、Soledad Encinas-Madrazo、Pablo Herrero-Teijón、Rosa Rubio González

  DOI：10.1002/ejoc.201403288

  日期：2015.1

  A radical coupling reaction of diverse vinyl sulfones and epoxides was mediated by Cp2TiCl (Cp = cyclopentadienyl) to provide a straightforward synthetic pathway to hydroxy sulfones. The reaction was successfully achieved by using either an excess or a catalytic amount of the TiIII reagent. The scope of the reaction was studied for several different functionalized and substituted epoxides and vinyl

  多种乙烯基砜和环氧化物的自由基偶联反应由 Cp2TiCl（Cp = 环戊二烯基）介导，以提供直接合成羟基砜的途径。通过使用过量或催化量的 TiIII 试剂成功地实现了反应。对几种不同的官能化和取代的环氧化物和乙烯基砜的反应范围进行了研究。
• Rhenium complex-catalyzed Meinwald rearrangement reactions of oxiranes
  作者：Rui Umeda、Masahito Muraki、Yuudai Nakamura、Tomoyuki Tanaka、Kyohei Kamiguchi、Yutaka Nishiyama

  DOI：10.1016/j.tetlet.2017.05.018

  日期：2017.6

  The Meinwald rearrangement reaction of oxiranes to the corresponding carbonyl compounds is efficiently catalyzed by the ReBr(CO)5 complex.

  ReBr（CO）5络合物可有效催化肟酮与相应的羰基化合物的Meinwald重排反应。
• Titanocene‐Catalyzed Radical Opening of N‐Acylated Aziridines
  作者：Yong‐Qiang Zhang、Elisabeth Vogelsang、Zheng‐Wang Qu、Stefan Grimme、Andreas Gansäuer

  DOI：10.1002/anie.201707673

  日期：2017.10.2

  Useful intermediates for intermolecular additions, reductions, and cyclizations are obtained with excellent regioselectivity via β-amido-substituted radicals catalytically generated from N-acyl aziridines. DFT calculations indicate that the ring opening is concerted rather than stepwise as previously postulated.

  通过N-酰基氮丙啶催化生成的β-酰胺基取代的基团，以极好的区域选择性获得了用于分子间加成，还原和环化的有用的中间体。DFT计算表明开环是一致的，而不是先前假定的逐步进行。
• Radical Reduction of Epoxides Using a Titanocene(III)/Water System: Synthesis of β-Deuterated Alcohols and Their Use as Internal Standards in Food Analysis
  作者：Tania Jiménez、Araceli G. Campaña、Btissam Bazdi、Miguel Paradas、David Arráez-Román、Antonio Segura-Carretero、Alberto Fernández-Gutiérrez、J. Enrique Oltra、Rafael Robles、José Justicia、Juan M. Cuerva

  DOI：10.1002/ejoc.201000487

  日期：2010.8

  comprehensive study into the Cp 2 TiCl-mediated reductive epoxide ring opening using either water as a hydrogen source or deuterium oxide as a deuterium source. The remarkable chemical profile of this reaction allows access to alcohols with anti-Markovnikov regiochemistry from different epoxides. The use of D 2 O as a deuterium source leads to an efficient synthesis of β-deuterated alcohols, including a deuterated

  我们描述了使用水作为氢源或使用氧化氘作为氘源的 Cp 2 TiCl 介导的还原性环氧化物开环的综合研究。该反应的显着化学特征允许从不同的环氧化物中获得具有抗马尔科夫尼科夫区域化学的醇。使用 D 2 O 作为氘源可有效合成 β-氘化醇，包括酪醇的氘化样品，酪醇是一种包含在橄榄叶中的生物活性化合物，已成功用作食品分析中的内标.