(4-bromophenyl)methylenediacetate | 55605-27-1

• 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: (4-bromophenyl)methylenediacetate
• 英文别名: 1,1-diacetoxy-1-(4-bromophenyl)methane；(4-bromophenyl)methylene diacetate；4-bromobenzaldehyde-1,1-diacetate；4-bromobenzaldehyde diacetate；4-bromobenzylidene diacetate；4-bromobenzal diacetate；[Acetyloxy-(4-bromophenyl)methyl] acetate
• CAS: 55605-27-1
• 化学式: C₁₁H₁₁BrO₄
• 分子量: 287.11
• InChiKey: VVTBYHJCOQCFAM-UHFFFAOYSA-N

物化性质

• 熔点：
  84 °C
• 沸点：
  340.0±27.0 °C(Predicted)
• 密度：
  1.467±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  16
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (4-bromophenyl)methylenediacetate 以64%的产率得到
  参考文献：
  名称：

  ARAI, GOROU, J. CHEM. SOC. JAP., CHEM. AND IND. CHEM., 1983, N 4, 551-555

  摘要：

  DOI：
• 作为产物：
  描述：

  (4-bromophenyl)magnesium bromide 在 硫酸 作用下， 生成 (4-bromophenyl)methylenediacetate
  参考文献：
  名称：

  Gattermann, Justus Liebigs Annalen der Chemie, 1912, vol. 393, p. 224

  摘要：

  DOI：

文献信息

• 2,4,4,6-Tetrabromo-2,5-cyclohexadienone (TABCO), N-Bromosuccinimide (NBS) and Bromine as Efficient Catalysts for Dithioacetalization and Oxathioacetalization of Carbonyl Compounds and Transdithioacetalization Reactions
  作者：Nasser Iranpoor、Habib Firouzabadi、Hamid Reza Shaterian、M. A. Zolfigol

  DOI：10.1080/10426500211712

  日期：2002.5.1

  6-tetrabromo-2,5-cyclohexadienone (TABCO), N-bromosuccinimide (NBS), and bromine as efficient catalysts for conversion of carbonyl compounds to their cyclic and acyclic dithioacetals and 1,3-oxathiolanes under mild reaction conditions are described. These catalysts are also used for efficient transdithioacetalization of acetals, diacetals, ketals, acylals, enamines, hydrazones, and oximes with high

  使用 2,4,4,6-四溴-2,5-环己二烯酮 (TABCO)、N-溴代琥珀酰亚胺 (NBS) 和溴作为有效催化剂将羰基化合物转化为环状和无环二硫缩醛和 1,3-描述了在温和反应条件下的硫杂环戊烷。这些催化剂还用于在硫醇存在下以高产率有效地将缩醛、二缩醛、缩酮、酰基、烯胺、腙和肟转二硫缩醛。
• Acetonyltriphenylphosphonium Bromide (ATPB): A Versatile Reagent for the Acylation of Alcohols, Phenols, Thiols and Amines and for 1,1-Diacylation of Aldehydes under Solvent-Free Conditions
  作者：Abu T. Khan、Lokman H. Choudhury、Subrata Ghosh

  DOI：10.1002/ejoc.200500066

  日期：2005.7

  A wide variety of alcohols, phenols, amines and thiols may easily be converted into the corresponding acetate derivatives by treatment with acetic anhydride (1.5–2.0 equivalents) in the presence of acetonyltriphenylphosphonium bromide (ATPB; 5 mol %) in good yields at room temperature. With the same precatalyst, both aliphatic and aromatic aldehydes can also be transformed into the corresponding gem-diacetates

  在室温下，在丙酮基三苯基溴化鏻（ATPB；5 mol%）存在下，通过用乙酸酐（1.5-2.0 当量）处理，可以很容易地将多种醇、酚、胺和硫醇转化为相应的乙酸衍生物. 使用相同的预催化剂，脂肪醛和芳香醛也可以在回流条件下转化为相应的双乙酸酯。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
• 2,6-Dicarboxypyridinium Chlorochromate. An Efficient and Selective Reagent for the Mild Deprotection of Acetals, Thioacetals, and 1,1-Diacetates to Carbonyl Compounds
  作者：Rahman Hosseinzadeh、Mahmood Tajbakhsh、Alireza Shakoori、Mohammad Yazdani Niaki

  DOI：10.1007/s00706-004-0193-7

  日期：2004.10

  chlorochromate (2,6- DCPCC ) was found to be an efficient reagent for the conversion of acetals, thioacetals, and 1,1-diacetates to their corresponding carbonyl compounds under neutral and anhydrous conditions in good to excellent yields. Selective deprotection of acetals or 1,1-diacetates in the presence of thioacetals at room temperature is also observed with this reagent.

  发现2,6-二 羧基吡啶鎓氯铬酸盐（2,6- DCPCC ）是一种在中性和无水条件下以良好或优异的收率将乙缩醛，硫缩醛和1,1-二乙酸酯转化为相应的羰基化合物的有效试剂。用该试剂在室温下也观察到在乙缩醛存在下乙缩醛或1，1-二乙酸酯的选择性脱保护。
• Indium(III)-Catalyzed Knoevenagel Condensation of Aldehydes and Activated Methylenes Using Acetic Anhydride as a Promoter
  作者：Yohei Ogiwara、Keita Takahashi、Takefumi Kitazawa、Norio Sakai

  DOI：10.1021/acs.joc.5b00011

  日期：2015.3.20

  amount of InCl3 and acetic anhydride remarkably promotes the Knoevenagel condensation of a variety of aldehydes and activated methylene compounds. This catalytic system accommodates aromatic aldehydes containing a variety of electron-donating and -withdrawing groups, heteroaromatic aldehydes, conjugate aldehydes, and aliphatic aldehydes. Central to successfully driving the condensation series is the formation

  催化量的InCl 3和乙酸酐的组合显着促进了各种醛和活化的亚甲基化合物的Knoevenagel缩合。该催化体系可容纳含有各种供电子和吸电子基团的芳族醛，杂芳族醛，共轭醛和脂族醛。成功驱动缩合反应系列的关键是双乙酸双酯中间体的形成，该中间体是在铟催化剂的帮助下由醛和酸酐就地生成的。
• An efficient method for the synthesis of acylals from aldehydes using silica-supported perchloric acid (HClO4–SiO2)
  作者：Vinod T. Kamble、Vasant S. Jamode、Neeta S. Joshi、Ankush V. Biradar、Rameshchandra Y. Deshmukh

  DOI：10.1016/j.tetlet.2006.05.125

  日期：2006.7

  The synthesis of acylals from structurally diverse aldehydes has been performed in excellent yields under solvent-free conditions using HClO4–SiO2 as a mild, convenient, reusable, and heterogeneous catalyst. The procedure is operationally simple, environmentally benign and has the advantage of enhanced atom utilization. Furthermore, the catalyst can be recovered simply and reused efficiently a number

  在无溶剂条件下，使用HClO 4 -SiO 2作为温和，方便，可重复使用的非均相催化剂，可以以优异的产率从结构多样的醛类合成酰基化合物。该程序操作简单，对环境无害，并具有增强原子利用的优点。此外，催化剂可以简单地回收并且可以有效地重复使用多次，而没有明显的活性损失。