2-propyl-4-ethyl-1,3-dioxolane

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氧戊环
• 英文名称: 2-propyl-4-ethyl-1,3-dioxolane
• 英文别名: 4-Ethyl-2-propyl-1,3-dioxolane
• 化学式: C₈H₁₆O₂
• 分子量: 144.214
• InChiKey: AJNFBXUIWBLLNQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  10
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  正丁醛 、 1,2-丁二醇 在 sulfamic acid functionalized polyvinyl chloride 作用下， 以99.8%的产率得到2-propyl-4-ethyl-1,3-dioxolane
  参考文献：
  名称：

  Sulfamic acid functionalized PVC: a remarkably efficient heterogeneous reusable catalyst for the acid-catalyzed reactions

  摘要：

  DOI：

  10.1007/s11164-023-05121-4

文献信息

• Production of aldehydes from 1,2-alkanediols over silica-supported WO 3 catalyst
  作者：Daolai Sun、Yasuhiro Yamada、Satoshi Sato、Satoshi Suganuma、Naonobu Katada

  DOI：10.1016/j.apcata.2016.08.029

  日期：2016.9

  Brønsted acid sites are proposed to be the active species for the formation of aldehyde. High concentrations of H2O were effective for inhibiting the intermolecular reaction and improving the selectivity to aldehydes. The dehydration of different 1,2-alkanediols was compared under different reaction conditions. The reactivity of 1,2-ethanediol was low and the product distribution was several comparing

  在二氧化硅负载的WO 3上研究了几种1,2-链烷二醇（例如1,2-乙二醇，1,2-丙二醇，1,2-丁二醇和1,2-戊二醇）的气相脱水反应，生成相应的醛。通过浸渍方法制备的催化剂，然后在320°C下煅烧。在250℃下用20％的1,2-链烷二醇水溶液进料，在WO 3 / SiO 2催化剂上可以实现高于90％的醛收率。布朗斯台德和路易斯酸位都存在于WO 3 / SiO 2催化剂上，而布朗斯台德酸位被认为是醛形成的活性物种。高浓度的H 2O对于抑制分子间反应和提高对醛的选择性是有效的。在不同的反应条件下比较了不同的1,2-链烷二醇的脱水。1,2-乙二醇的反应性低，与其他1,2-链烷二醇相比，产物分布少。生成的醛与另一种1,2-链烷二醇进行环脱水生成的环状缩醛是主要副产物，缩醛的形成受温度和1,2碳链长度的影响-链烷二醇。
• Method for production of 1,3-dioxolanes
  申请人：NIPPON SHOKUBAI CO., LTD.

  公开号：EP0413558A2

  公开（公告）日：1991-02-20

  A method for the production of a 1,3-dioxolane represented by the general formula III: wherein R¹ is hydrogen atom or an alkyl group of 1 to 5 carbon atoms and R² is hydrogen atom or an alkyl group of 1 to 2 carbon atoms or a phenyl group, which method comprises reacting an aldehyde represented by the general formula I wherein R¹ has the same meaning as defined above, with an alkylene oxide represented by the general formula II: wherein R² has the same meaning as defined above, in an alkylene glycol solvent corresponding to said alkylene oxide in the presence of at least one catalyst selected from the group consisting of bromides of alkali metals, iodides of alkali metals, bromides of alkaline earth metals, and iodides of alkaline earth metals.

  一种生产通式 III 所代表的 1，3-二氧戊环的方法： 其中 R¹ 为氢原子或 1 至 5 个碳原子的烷基，R² 为氢原子或 1 至 2 个碳原子的烷基或苯基，该方法包括使通式 I 所代表的醛与通式 II 所代表的环氧亚烷基进行反应 其中 R¹ 的含义与上述定义相同，与通式 II 所代表的氧化亚烷反应： 其中 R² 的含义与上文所定义的相同，在至少一种选自碱金属溴化物、碱金属碘化物、碱土金属溴化物和碱土金属碘化物的催化剂存在下，在与所述环氧亚烷基相对应的烷二醇溶剂中进行反应。
• THIADIAZOLE COMPOUND AND USE THEREOF
  申请人：Takyo Hayato

  公开号：US20100081693A1

  公开（公告）日：2010-04-01

  A thiadiazole compound represented by the formula (I): wherein R is a hydrogen atom, an optionally substituted C1-C7 chain hydrocarbon group etc., Z is an oxygen atom or a sulfur atom, X is a —NR 2 R 3 group etc., R 2 and R 3 each independently are a hydrogen atom, a C1-C4 alkyl group, a C3-C4 alkenyl group, a C1-C4 alkoxy group, or a phenyl group, or R 2 and R 3 bind to each other at the ends thereof to form a C2-C7 alkanediyl group, has excellent controlling effect on a noxious arthropod.
• METHODS FOR VICINAL DIOL SEPARATION
  申请人：BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY

  公开号：US20210340088A1

  公开（公告）日：2021-11-04

  The disclosure relates to methods for separating mixtures of polyols, in particular mixtures of two of more different vicinal diols having close boiling points, thus making them difficult or impossible to separate using conventional distillation techniques. The polyol mixture is reacted with an aldehyde or ketone acetalization agent to form one or more acetals as corresponding acetalization reaction products. The acetalization reaction products are more easily separable either from each other (such as via distillation) or from an unreacted vicinal diol (such as via extraction, settling, or other phase separation). After separation, hydrolysis is performed on the acetalization reaction products to recover the vicinal diols as separate, purified components. The methods provide cost-effective processes for separating different polyols originally formed in admixture.
• US5026880A
  申请人：——

  公开号：US5026880A

  公开（公告）日：1991-06-25