1,4-dioxan-2-yl 2-bromobenzoate | 1610377-97-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 1,4-dioxan-2-yl 2-bromobenzoate
• CAS: 1610377-97-3
• 化学式: C₁₁H₁₁BrO₄
• 分子量: 287.11
• InChiKey: AFYPHNZDALKCDF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  44.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  1,4-二氧六环 、 邻溴苄胺 在 叔丁基过氧化氢 、 四丁基碘化铵 作用下， 以 水 为溶剂， 反应 8.0h， 以61%的产率得到1,4-dioxan-2-yl 2-bromobenzoate
  参考文献：
  名称：

  Generation of bis-Acyl Ketals from Esters and Benzyl Amines Under Oxidative Conditions

  摘要：

  Treatment of benzylamines with esters at an elevated temperature are expected to give amides. However, in the presence of TBAI/TBHP, esters possessing a methylene carbon alpha-to oxygen with benzylamines provide bis-esters rather than the expected amides. Benzylamines under oxidative conditions generate less nucleophilic carboxylates, which couples at the sp(3) C-H bonds of esters and cyclic ethers to give bis-acyl ketals and alpha-acyloxy ethers, respectively.

  DOI：

  10.1021/jo502903d

文献信息

• Synthesis of α-acyloxy ethers via direct esterification of carboxylic acids with ethers under metal-organic framework catalysis
  作者：Phuong T.M. Ha、Thuan D. Le、Son H. Doan、Tung T. Nguyen、Nhan T.H. Le、Nam T.S. Phan

  DOI：10.1016/j.tet.2017.08.040

  日期：2017.10

  verified, and α-acyloxy ethers were not produced via the contribution of leached iron species. The framework catalyst was reutilized many times for the transformation without a remarkable decline in catalytic activity. According to our best knowledge, this is the first heterogeneous catalytic approach towards the synthesis of α-acyloxy ethers via direct esterification of carboxylic acids with C(sp3)H bonds

  合成了铁有机骨架MOF-235，并将其用作通过具有C（sp 3）H键的羧酸直接酯化合成α-酰氧基醚的有效多相催化剂。在直接酯化反应中，铁基骨架显示出比许多均相催化剂和各种MOF更高的催化生产率。α酰氧基醚的生成被显着地由氧化剂，和二-调节叔过氧化丁酯是最好的候选物。验证了多相催化作用，并且通过浸出铁物种的贡献未产生α-酰氧基醚。骨架催化剂被多次转化用于转化，而催化活性没有明显下降。据我们所知，这是通过具有C（sp 3）H键的羧酸直接酯化合成α-酰氧基醚的第一种非均相催化方法。
• Ultrasound-promoted synthesis of a copper–iron-based catalyst for the microwave-assisted acyloxylation of 1,4-dioxane and cyclohexene
  作者：Pablo Macías-Benítez、Alfonso Sierra-Padilla、M. Pilar Yeste、José María Palacios-Santander、Laura Cubillana-Aguilera、José M. Gatica、Hilario Vidal、Francisco M. Guerra、F. Javier Moreno-Dorado

  DOI：10.1039/d2ob02117j

  日期：——

  A copper–iron-based catalyst has been prepared by a low-temperature co-precipitation and sonication method. The use of high-energy ultrasound reduces the time required for the preparation process from one workweek to one day with respect to the catalysts obtained by conventional coprecipitation and thermal treatment methods. The resulting material has been characterized at compositional, textural, structural

  采用低温共沉淀和超声法制备了铜-铁基催化剂。相对于通过常规共沉淀和热处理方法获得的催化剂，高能超声的使用将制备过程所需的时间从一个工作周减少到一天。所得材料已通过 ICP-AES、BET、SEM-EDS、XRD、TEM 和 FTIR 等技术在成分、结构、结构和化学水平上进行了表征。该材料在微波辐射下对 1,4-二恶烷和环己烯的酰氧基化反应显示出催化活性。在优化催化剂合成的同时，使用微波可以在清洁度、产率和时间方面显着改善反应结果。
• Copper-Catalyzed Esterification of Alkylbenzenes with Cyclic Ethers and Cycloalkanes via C(sp³)–H Activation Following Cross-Dehydrogenative Coupling
  作者：Saroj Kumar Rout、Srimanta Guin、Wajid Ali、Anupal Gogoi、Bhisma K. Patel

  DOI：10.1021/ol5011906

  日期：2014.6.6

  A copper-catalyzed cross-dehydrogenative coupling strategy has been developed for the synthesis of two classes of esters from simple solvents. The reaction of methylarenes with cyclic ethers resulted in alpha-acyloxy ethers involving four sp(3) C-H cleavages, while treatment of methylarenes with cycloalkanes led to the formation of allyl esters at the expense of six consecutive sp(3) C-H bonds.