Bis(tetrahydropyranyl)ether | 71033-27-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 氧烷类
• 英文名称: Bis(tetrahydropyranyl)ether
• 英文别名: Di-(α-Tetrahydropyranyloxy)-1,2-ethan；1,2-bis-tetrahydropyran-2-yloxy-ethane；1,2-Bis-tetrahydropyran-2-yloxy-aethan；2,2'-[Ethane-1,2-diylbis(oxy)]bis(tetrahydro-2h-pyran)；2-[2-(oxan-2-yloxy)ethoxy]oxane
• CAS: 71033-27-7
• 化学式: C₁₂H₂₂O₄
• 分子量: 230.304
• InChiKey: YUAPGYIENVWPIK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  16
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  36.9
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  3,4-二氢-2H-吡喃 、 乙二醇 在 N,N,N’,N’-tetrabromobenzene-1,3-disulfonamide 作用下， 反应 0.28h， 以92%的产率得到Bis(tetrahydropyranyl)ether
  参考文献：
  名称：

  聚（N-溴-N-乙基-苯-1,3-二磺酰胺），N，N，N'，N'-四溴苯-1,3-二磺酰胺是将醇类转化为THP醚和醛类的新有效试剂恶唑啉化合物

  摘要：

  本文涉及使用聚（N-溴-N-乙基-苯-1,3-二磺酰胺），N，N，N'轻松地从伯醇，仲醇和叔醇制备THP醚和由各种醛类制备恶唑啉化合物的方法，N'-四溴苯-1,3-二磺酰胺[TBBDA]是在环境条件下没有过度氧化的新型高效试剂。

  DOI：

  10.1007/bf03246014

文献信息

• Silica‐Gel‐Supported Aluminium Chloride: A Stable, Efficient, Selective, and Reusable Catalyst for Tetrahydropyranylation of Alcohols and Phenols
  作者：Kaveh Parvanak Borujeni

  DOI：10.1080/00397910600764725

  日期：2006.9

  Abstract A simple, effective, and highly chemoselective method to form 2‐tetrahydropyranyl ethers of alcohols and phenols in the presence of silica‐gel‐supported aluminium chloride as a heterogeneous Lewis acid catalyst is described. The catalyst can be easily recovered and reused without appreciable change in its efficiency.

  摘要描述了一种在硅胶负载的氯化铝作为多相路易斯酸催化剂存在下形成醇和酚的 2-四氢吡喃基醚的简单、有效和高度化学选择性的方法。催化剂可以很容易地回收和再利用，而不会明显改变其效率。
• Poly(N-bromo-N-ethyl-benzene-1,3-disulfonamide), N,N,N′,N′-tetrabromobenzene-1,3-disulfonamide as new efficient reagents for conversion of alcohols to THP ethers and aldehydes to oxazoline compounds
  作者：R. Ghorbani-Vaghei、S. Akbari-Dadamahaleh、M. Amiri

  DOI：10.1007/bf03246014

  日期：2010.6

  paper is concerned with an easy preparation of THP ethers from primary, secondary and tertiary alcohols and oxazoline compounds from various aldehydes using poly(N-bromo-N-ethyl-benzene-1,3-disulfonamide), N,N,N′,N′-tetrabromobenzene-1,3-disulfonamide [TBBDA] as new and efficient reagents under ambient conditions without over-oxidation.

  本文涉及使用聚（N-溴-N-乙基-苯-1,3-二磺酰胺），N，N，N'轻松地从伯醇，仲醇和叔醇制备THP醚和由各种醛类制备恶唑啉化合物的方法，N'-四溴苯-1,3-二磺酰胺[TBBDA]是在环境条件下没有过度氧化的新型高效试剂。
• Generally Applicable Organocatalytic Tetrahydropyranylation of Hydroxy Functionalities with Very Low Catalyst Loading
  作者：Peter Schreiner、Mike Kotke

  DOI：10.1055/s-2007-965917

  日期：2007.3

  This paper presents the first acid-free, organocatalytic tetrahydropyran and 2-methoxypropene protection of alcohols, phenols, and other ROH derivatives utilizing privileged N,N′-bis[3,5-bis(trifluoromethyl)phenyl]thiourea and a polystyrene-bound analogue. The reactions are broadly applicably (also on preparative scale), in particular, to acid-sensitive substrates such as aldol products, hydroxy esters, acetals, silyl-protected alcohols, and cyanohydrins. The catalytic efficiency is truly remarkably with turnover numbers of 100,000 and turnover frequencies of up to 5700 h-1 at catalyst loadings down to 0.001 mol%. The computationally supported mechanistic interpretation emphasizes the hydrogen bond assisted heterolysis of the alcohol and concomitant preferential stabilization of the oxyanion hole in the transition state.

  本文介绍了首个无酸、有机催化的四氢吡喃和2-甲氧基丙烯对醇、酚及其他ROH衍生物的保护方法，利用了特权的N,N'-双[3,5-双(三氟甲基)苯基]硫脲及其聚苯乙烯结合类似物。这些反应广泛适用于（包括制备规模）对酸敏感的底物，如醛醇产物、羟基酯、缩醛、硅烷保护的醇和氰醇。催化效率非常高，转化数达到10万，转化频率高达每小时5700次，催化剂负载量低至0.001 mol%。通过计算支持的机理解释强调了氢键辅助的醇异裂和过渡态中氧阴离子穴的优先稳定。
• Mild and Efficient Chemoselective Tetrahydropyranylation of Alcohols Using Brønsted Acidic Ionic Liquid as Catalyst Under Solvent-Free Conditions
  作者：Abdol R. Hajipour、Zahra Nasresfahani

  DOI：10.1080/00397911.2010.551286

  日期：2012.7.1

  Abstract A straightforward and efficient method for preparation of morpholinium bisulfate ([mroH]HSO4) as a novel acidic ionic liquid is reported. The application of this efficient and inexpensive acidic ionic liquid catalyst for tetrahydropyranylation of alcohols under mild and solvent-free conditions at room was investigated. GRAPHICAL ABSTRACT

  摘要 报道了一种制备新型酸性离子液体吗啉硫酸氢盐 ([mroH]HSO4) 的简单有效的方法。研究了这种高效廉价的酸性离子液体催化剂在室温温和无溶剂条件下用于醇四氢吡喃化反应的应用。图形概要
• Chemoselective tetrahydropyranylation of alcohols and phenols using polystyrene supported aluminium chloride as a catalyst
  作者：Bahman Tamami、Kaveh Parvanak Borujeny

  DOI：10.1016/j.tetlet.2003.11.056

  日期：2004.1

  A simple, efficient and highly chemoselective method for tetrahydropyranylation of alcohols and phenols has been developed by their reaction with 3,4-dihydro-2H-pyran at room temperature in the presence of a catalytic amount of polystyrene supported AlCl3. The method is also highly selective for monoprotection of symmetrical diols.

  通过在室温下在催化量的聚苯乙烯负载的AlCl 3存在下，它们与3,4-二氢-2 H-吡喃反应，开发了一种简单，有效且高度化学选择性的醇和酚四氢吡喃基化方法。该方法对于对称二醇的单保护也是高度选择性的。