1,12-bistetrahydropyranyloxydodecane | 55009-72-8

• 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: 1,12-bistetrahydropyranyloxydodecane
• 英文别名: 2,2'-[Dodecane-1,12-diylbis(oxy)]bis(oxane)；2-[12-(oxan-2-yloxy)dodecoxy]oxane
• CAS: 55009-72-8
• 化学式: C₂₂H₄₂O₄
• 分子量: 370.573
• InChiKey: MGOGIEZMGOOVEM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.3
• 重原子数：
  26
• 可旋转键数：
  15
• 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 、 1,12-十二烷二醇 在 4-甲基苯磺酸吡啶 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 5.0h， 以26.4%的产率得到1,12-bistetrahydropyranyloxydodecane
  参考文献：
  名称：

  Studies on the terpenoids and related alicyclic compounds XXXIX. A synthesis of .ALPHA.-methylene-.GAMMA.-lactones fused to medium and large rings by intramolecular cyclization of formylated allyl halides.

  摘要：

  与α-亚甲基-γ-内酯单元融合的碳环是通过将ω-甲酰化的β-乙氧基碳酰丙烯卤化物（4a-g）在N,N-二甲基甲酰胺中与低价铬试剂（由CrCl3和LiAlH4制备）通过分子内环化反应合成的。通过这种方法，融合中环（八元环）或大环（十二元和十四元环）系统的α-亚甲基-γ-内酯（5a、c和d）以良好到相当好的产率合成。然而，预计能形成十元碳环系统的甲酰化丙烯卤化物（4b），即使在高稀释反应条件下也只给出了与二十元环单元融合的二内酯。

  DOI：

  10.1248/cpb.38.28

文献信息

• Studies on the terpenoids and related alicyclic compounds XXXIX. A synthesis of .ALPHA.-methylene-.GAMMA.-lactones fused to medium and large rings by intramolecular cyclization of formylated allyl halides.
  作者：Kiyoshi NISHITANI、Masashi ISOZAKI、Koji YAMAKAWA

  DOI：10.1248/cpb.38.28

  日期：——

  Carbocyclic rings fused to an α-methylene-γ-lactone unit were synthesized from ω-formylated β-ethoxycarbonylallyl halides (4a-g) through intramolecular cyclization by the use of a low-valent chromium reagent, prepared from CrCl3 and LiAlH4, in N, N-dimethylformamide. α-Methylene-γ-lactones fused to medium (eight-membered) or large (twelve-and fourteen-membered) ring system (5a, c and d) were synthesized by this method in good to fairly good yields. However, the formylated allyl halide (4b), expected to afford a ten-membered carbocyclic ring system, gave dilactones fused to a twenty-membered ring unit even under a high dilution reaction condition.

  与α-亚甲基-γ-内酯单元融合的碳环是通过将ω-甲酰化的β-乙氧基碳酰丙烯卤化物（4a-g）在N,N-二甲基甲酰胺中与低价铬试剂（由CrCl3和LiAlH4制备）通过分子内环化反应合成的。通过这种方法，融合中环（八元环）或大环（十二元和十四元环）系统的α-亚甲基-γ-内酯（5a、c和d）以良好到相当好的产率合成。然而，预计能形成十元碳环系统的甲酰化丙烯卤化物（4b），即使在高稀释反应条件下也只给出了与二十元环单元融合的二内酯。
• Selective Monotetrahydropyranylation of Symmetrical Diols Catalyzed by Ion-Exchange Resins
  作者：Takeshi Nishiguchi、Shizuo Fujisaki、Masahumi Kuroda、Kohtaro Kajisaki、Masahiko Saitoh

  DOI：10.1021/jo980659b

  日期：1998.11.1

  Primary and secondary symmetrical diols with 2-10 carbon atoms gave selectively monotetrahydropyranyl ethers in the reaction catalyzed by wet sulfonic acid-type ion-exchange resins in 3,4-dihydro-2H-pyran (DI-IP)/toluene or DHP/hexane. The yields of the monoethers were higher than 80% while those of the corresponding diethers were lower than 5%. In these reactions the rate of the formation of the diethers did not increase much even after most of the diols had been consumed. In the reaction of 1,10-decanediol in DHP/hexane, the yields of the monoether were increased by the addition of DMF or DMSO. Each diol was found to have a particular DHP/hydrocarbon ratio that gave the highest selectivity for the monoether. Generally, the larger the number of carbon atoms of the diols, the smaller the ratio of DHP in the solvents to give high selectivity for the monoether. This method of the selective etherification is quite simple and practical.
• Nishiguchi, Takeshi; Kawamine, Katsumi; Ohtsuka, Tomoko, Journal of the Chemical Society. Perkin transactions I, 1992, # 1, p. 153 - 156
  作者：Nishiguchi, Takeshi、Kawamine, Katsumi、Ohtsuka, Tomoko

  DOI：——

  日期：——
• NISHITANI, KIYOSHI;ISOZAKI, MASASHI;YAMAKAWA, KOJI, CHEM. AND PHARM. BULL., 38,(1990) N, C. 28-35
  作者：NISHITANI, KIYOSHI、ISOZAKI, MASASHI、YAMAKAWA, KOJI

  DOI：——

  日期：——
• Selective monotetrahydropyranylation of 1,n-diols catalyzed by aqueous acids
  作者：Takeshi Nishiguchi、Seiji Hayakawa、Yoshihiro Hirasaka、Masahiko Saitoh

  DOI：10.1016/s0040-4039(00)01742-1

  日期：2000.12

  1,n-Diols with 3-12 carbon atoms gave selectively the corresponding monotetrahydropyranyl ethers in higher yields than 80% in the reaction catalyzed by hydrogen ion in the water layer which is in contact with DHP-toluene or DHP-hexane layer. (C) 2000 Elsevier Science Ltd. All rights reserved.