反式-1-甲氧基-2-甲基环戊烷 | 81640-15-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 反式-1-甲氧基-2-甲基环戊烷
• 英文名称: cis-1-Methoxy-2-methylcyclopentane
• 英文别名: cis-2-methoxy-1-methylcyclopentane；cis-Methyl-(2-methyl-cyclopentyl)-aether；(1R,2S)-1-methoxy-2-methylcyclopentane
• CAS: 81640-15-5；81640-16-6；89794-33-2
• 化学式: C₇H₁₄O
• 分子量: 114.188
• InChiKey: HMMJMDWGCVGCCK-NKWVEPMBSA-N

物化性质

• 沸点：
  121.2±8.0 °C(Predicted)
• 密度：
  0.85±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  8
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  2-甲基环戊酮 在 sodium hydroxide 、 双氧水 、 L-Selectride 、 sodium hydride 作用下， 以 四氢呋喃 为溶剂， 反应 3.0h， 生成 反式-1-甲氧基-2-甲基环戊烷
  参考文献：
  名称：

  Cyclization of (4-Methoxy-5-hexenyl)lithium

  摘要：

  The cyclization of (4-methoxy-5-hexenyl)lithium (1), which was prepared by lithium-iodine exchange between 3-methoxy-6-iodo-1-hexene (2) and 1.75 molar equiv of t-BuLi in diethyl ether-n-pentane solution at -78 degrees C, has been investigated in a variety of solvent systems. The isomeric composition of the cis- and trans-1-methoxy-2-methylcyclopentane produced upon cyclization of 1 followed by quench with MeOH has been found to be dramatically dependent on the solvent system in which the isomerization is conducted.

  DOI：

  10.1021/jo00101a010

文献信息

• Treasures from the Free Radical Renaissance Period – Miscellaneous hexenyl radical kinetic data
  作者：Athelstan L. J. Beckwith、Carl H. Schiesser

  DOI：10.1039/c0ob00708k

  日期：——

  Rate constant data and Arrhenius parameters have been determined for a series of substituted hexenyl radicals of differing electronic and steric demand. Electron-withdrawing groups (CF3, CO2Et) directly attached to the radical centre slighly accelerate 5-exo ring-closure (kcis + ktrans ∼ 2.1 × 105 s−1 at 25°) relative to donating groups (OMe; 1.6 × 105 s−1 at 25°). Sterically demanding groups (tert-Bu)

  已针对一系列具有不同电子和空间需求的取代己烯基确定了速率常数数据和Arrhenius参数。相对于捐赠基团（OMe ），直接连接至自由基中心的吸电子基团（CF 3，CO 2 Et）缓慢促进5- exo闭环（25°时k cis + k trans〜2.1 ×10 5 s -1） ；在25°时为1.6×10 5 s -1）。如预期的那样，对空间要求较高的组（叔-Bu ）减慢环化过程（1×10 5 s -1）。这些观察结果与5 - exo闭环的活化能的细微变化是一致的。有趣的是，溶剂的性质似乎对该化学有重大影响，随着溶剂极性的增加，顺式/反式立体选择性有时会提高。除了包含CF 3（吸电子）基团的系统显示出环化/捕获速率常数（k c / k H）增加外，k c / k H普遍下降。记录随着溶剂极性增加的比率；据推测，这些变化主要是由于所用各种溶剂中k H的变化引起的。
• Stereochemistry of the cyclization of alkoxy-substituted 5-hexenyllithiums: effect of solvent and lithium iodide on diastereoselectivity
  作者：William F. Bailey、Xinglong Jiang

  DOI：10.1016/j.tet.2005.01.042

  日期：2005.3

  The stereochemistry of the cyclization of 4-methoxy-5-hexenyllithium, 4-(methoxymethoxy)-5-hexenyllithium, 4-tert-butoxy-5-hexenyllithium, and 3-methoxy-5-hexenyllithium, each of which was generated from the corresponding iodide by low-temperature lithium–iodine exchange, has been studied in a variety of solvent systems. The results of these studies demonstrate that the stereochemical outcome of the

  4-甲氧基-5-己烯基锂，4-（甲氧基甲氧基）-5-己烯基锂，4-叔丁氧基-5-己烯基锂和3-甲氧基-5-己烯基锂环化的立体化学通过低温锂-碘交换得到相应的碘化物，已在多种溶剂系统中进行了研究。这些研究的结果表明，烷氧基取代的5-己烯基锂环化的立体化学结果可能会受到进行闭环的介质的深刻影响。这些通常具有显着溶剂作用的病因归因于某些亲硫性配体竞争性络合碘化锂盐的能力，碘化锂盐是作为用于制备有机锂的交换反应的副产物而存在的。
• Intramolecular cyclizations of orgamometallic compounds IV. Heteroatom influence on cyclizations of organolithium compounds
  作者：Michael J. Smith、Stanley E. Wilson

  DOI：10.1016/s0040-4039(01)82995-6

  日期：1981.1

  Alkoxyl groups in alkenyllithiums can influence the stereochemistry of cyclization. The presence of n-butyllithium increases the stereoselectivity such that only one stereochemistry results; the presence of TMEDA negates the heteroatom's influence so that only the other stereochemistry results. Yields are 33% to 44%.

  烯基锂中的烷氧基可影响环化的立体化学。正丁基锂的存在增加了立体选择性，使得仅产生一种立体化学；反之，TMEDA的存在消除了杂原子的影响，因此仅产生其他立体化学。产率为33％至44％。
• DERIVATIVES OF N-(ARYLAMINO) SULFONAMIDES AS INHIBITORS OF MEK
  申请人：Maderna Andreas

  公开号：US20080058340A1

  公开（公告）日：2008-03-06

  This invention concerns N-(2-arylamino) aryl sulfonamides, which are inhibitors of MEK and are useful in treatment of cancer and other hyperproliferative diseases.

  这项发明涉及N-(2-芳基氨基)芳基磺酰胺，它们是MEK的抑制剂，可用于治疗癌症和其他过度增殖性疾病。
• DERIVATIVES OF N-(ARYLAMINO) SULFONAMIDES INCLUDING POLYMORPHS AS INHIBITORS OF MEK AS WELL AS COMPOSITIONS, METHODS OF USE AND METHODS FOR PREPARING THE SAME
  申请人：Vernier Jean-Michel

  公开号：US20110060049A1

  公开（公告）日：2011-03-10

  This invention concerns N-(2-arylamino) aryl sulfonamide compounds which are inhibitors of MEK including crystalline polymorphic forms which exhibit a specific powder x-ray diffraction profile and/or a specific differential scanning calorimetry profile. This invention also concerns pharmaceutical compositions comprising the compounds described herein and methods of use of the compounds and compositions described herein, including the use in the treatment and/or prevention of cancer, hyperproliferative diseases and inflammatory conditions. The invention also concerns methods of making the compounds and compositions described herein.

  本发明涉及N-(2-芳基氨基)芳基磺酰胺化合物，其是MEK抑制剂，包括具有特定粉末X射线衍射谱和/或特定差示扫描量热谱的晶体多态形式。本发明还涉及包含所述化合物的制药组合物及所述化合物和组合物的使用方法，包括在治疗和/或预防癌症、高增殖性疾病和炎症疾病中的使用。本发明还涉及制备所述化合物和组合物的方法。