cis-2-ethyl-5-methyltetrahydrofuran | 931-39-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 氧唑烯
• 英文名称: cis-2-ethyl-5-methyltetrahydrofuran
• 英文别名: cis-2-Methyl-5-ethyltetrahydrofuran；(2R,5S)-2-ethyl-5-methyloxolane
• CAS: 931-39-5；4676-62-4；4676-88-4
• 化学式: C₇H₁₄O
• 分子量: 114.188
• InChiKey: UHMJZZUFLYFOBN-NKWVEPMBSA-N

物化性质

• 沸点：
  118-119 °C(Press: 756 Torr)
• 密度：
  0.8326 g/cm3

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 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：

  庚烷-2,6-二醇 在 Amberlyst 15 作用下， 生成 cis-2,6-dimethyltetrahydropyran 、 2,6-二甲基四氢吡喃 、 trans-2-ethyl-5-methyltetrahydrofuran 、 cis-2-ethyl-5-methyltetrahydrofuran
  参考文献：
  名称：

  Carbon-13 NMR spectra of saturated heterocycles: XI—Tetrahydropyrans (oxanes)

  摘要：

  AbstractThe 13C NMR spectra of 62 oxanes (tetrahydropyrans) with and without methyl substituents at various ring positions, some of them bearing in addition (or instead) ethyl, vinyl, ethynyl, carbomethoxy and methylol substituents at C‐2, have been recorded, and the 294 resulting chemical shifts have been correlated by multiple linear regression analysis. Axial and equatorial α‐, β‐, γ‐, δ‐, gem‐ and vic‐parameters for shifts caused by methyl groups at all ring positions, and similar parameters for Et,—CHCH2,—CCH, CO2Me and CH2OH groups at C‐2, are reported. Standard deviations of the parameters are, in most cases, within 0.3 ppm and the agreement of calculated and experimental shifts is excellent. This is probably the largest parameter set of this type extant. 13C NMR spectra of a number of additional substituted tetrahydropyrans, and of 3,6‐dihydro‐2H‐pyrans and 3,4‐dihydro‐2H‐pyrans, are tabulated and discussed.

  DOI：

  10.1002/omr.1270210205

文献信息

• METHOD FOR NON-ENZYMATIC COMBINATION OF NUCLEIC ACID CHAINS
  申请人：Japan Science and Technology Agency

  公开号：EP3187584A1

  公开（公告）日：2017-07-05

  Provided, as a technique for binding a nucleic acid chain and a nucleic acid chain by a natural structure or an analogous structure thereto, is a non-enzymatic nucleic acid chain binding method, which is a method for binding a nucleic acid chain and a nucleic acid chain not via an enzymatic reaction, including a step of reacting a nucleic acid chain having a phosphorothioate group and a nucleic acid chain having a hydroxyl group or amino group in the presence of an electrophile.

  作为一种通过天然结构或类似结构结合核酸链和核酸链的技术，提供了一种非酶结合核酸链的方法，它是一种不通过酶反应结合核酸链和核酸链的方法，包括在亲电子体存在的情况下，使具有硫代磷酸基的核酸链和具有羟基或氨基的核酸链发生反应的步骤。
• US9493500B2
  申请人：——

  公开号：US9493500B2

  公开（公告）日：2016-11-15
• Carbon-13 NMR spectra of saturated heterocycles: XI—Tetrahydropyrans (oxanes)
  作者：Ernest L. Eliel、Muthiah Manoharan、K. Michal Pietrusiewicz、Karl D. Hargrave

  DOI：10.1002/omr.1270210205

  日期：1983.2

  AbstractThe 13C NMR spectra of 62 oxanes (tetrahydropyrans) with and without methyl substituents at various ring positions, some of them bearing in addition (or instead) ethyl, vinyl, ethynyl, carbomethoxy and methylol substituents at C‐2, have been recorded, and the 294 resulting chemical shifts have been correlated by multiple linear regression analysis. Axial and equatorial α‐, β‐, γ‐, δ‐, gem‐ and vic‐parameters for shifts caused by methyl groups at all ring positions, and similar parameters for Et,—CHCH2,—CCH, CO2Me and CH2OH groups at C‐2, are reported. Standard deviations of the parameters are, in most cases, within 0.3 ppm and the agreement of calculated and experimental shifts is excellent. This is probably the largest parameter set of this type extant. 13C NMR spectra of a number of additional substituted tetrahydropyrans, and of 3,6‐dihydro‐2H‐pyrans and 3,4‐dihydro‐2H‐pyrans, are tabulated and discussed.