1-((dodecyloxy)methyl)-4-methoxybenzene | 121505-91-7

• 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-((dodecyloxy)methyl)-4-methoxybenzene
• 英文别名: 1-[(Dodecyloxy)methyl]-4-methoxybenzene；1-(dodecoxymethyl)-4-methoxybenzene
• CAS: 121505-91-7
• 化学式: C₂₀H₃₄O₂
• 分子量: 306.489
• InChiKey: RDAKBJJYLNQVRG-UHFFFAOYSA-N

物化性质

• 沸点：
  392.3±17.0 °C(Predicted)
• 密度：
  0.917±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  7.1
• 重原子数：
  22
• 可旋转键数：
  14
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.7
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-((dodecyloxy)methyl)-4-methoxybenzene 在 N,N,N,N-tetraethylammonium tetrafluoroborate 作用下， 以 甲醇 为溶剂， 以90%的产率得到十二烷醇
  参考文献：
  名称：

  流动电解池中对甲氧基苄基醚的电化学脱保护

  摘要：

  对-甲氧基苄基（PMB）醚的电化学脱保护是在未分开的电化学流动反应器中的MeOH溶液中进行的，从而产生未掩蔽的醇和对甲氧基苯甲醛二甲基乙缩醛的副产物。电化学方法消除了对化学氧化剂的需求，并且可以回收和再利用添加的电解质（BF 4 NEt 4）。该方法一次通过即可应用于高转化率的17种基材，产率高达92％，生产率高达7.5 gh –1。在一些其他常见的醇保护基的存在下，也选择性地除去了PMB保护基。

  DOI：

  10.1021/acs.orglett.7b00641
• 作为产物：
  描述：

  dodecyl tert-butyldimethylsilyl ether 在 2,5-bis(perfluorobutyl)-1,4-benzoquinone 、 sodium hydride 作用下， 以 水 、 N,N-二甲基甲酰胺 、 乙腈 、 mineral oil 为溶剂， 反应 30.0h， 生成 1-((dodecyloxy)methyl)-4-methoxybenzene
  参考文献：
  名称：

  氟苯醌的合成，性质及其在甲硅烷基醚的脱保护中的应用†

  摘要：

  制备具有三氟甲基，全氟丁基和全氟己基的1，4-苯醌衍生物，并将其用于甲硅烷基醚的脱保护。通过测量氟与有机溶剂之间的分配系数来检查这些化合物的氟特性。苯醌衍生物显示出显着的氟特征，表明它们可以使用氟/有机双相体系从反应混合物中回收。通过循环伏安法估计氟苯醌的氧化能力，发现这些化合物是强氧化剂。氟苯醌用于甲硅烷基醚的氧化脱甲硅烷基化反应，以高收率提供脱保护的醇。此外，

  DOI：

  10.1039/c4ob00783b

文献信息

• Dehydration Reactions in Water. Surfactant-type Brønsted Acid-catalyzed Dehydrative Etherification, Thioetherification, and Dithioacetalization in Water
  作者：Shu Kobayashi、Shinya Iimura、Kei Manabe

  DOI：10.1246/cl.2002.10

  日期：2002.1

  Dehydration reactions such as etherification, thioetherification, and dithioacetalization are efficiently catalyzed by a surfactant-type Bronsted acid in water.

  醚化、硫醚化和二硫代缩醛等脱水反应在水中由表面活性剂型布朗斯台德酸有效催化。
• Selective synthesis of unsymmetrical ethers from different alcohols catalyzed by sodium bisulfite
  作者：Jun-Lai Yu、Hui Wang、Kai-Feng Zou、Jia-Rui Zhang、Xiang Gao、Dan-Wei Zhang、Zhan-Ting Li

  DOI：10.1016/j.tet.2012.10.032

  日期：2013.1

  ethers from alcohols catalyzed by sodium bisulfite is reported. The procedure enables the direct dehydration of primary, secondary, and tertiary benzylic alcohols with aliphatic alcohols in the absence of solvent to selectively produce unsymmetrical ethers in high yields with low catalyst loading. No symmetrical ethers are generated in the reactions. The etherification of a chiral secondary benzyl alcohol

  报道了一种由亚硫酸氢钠催化的醇制备不对称醚的有效方法。该方法能够在不存在溶剂的情况下将伯，仲和叔苄醇与脂肪醇直接脱水，从而以高收率和低催化剂负载选择性地生产不对称醚。反应中不生成对称的醚。手性仲苄醇与丁醇的醚化仅产生外消旋醚，表明该反应涉及碳正离子中间机理。
• Mild deprotection of PMB ethers using tert-butyl bromide
  作者：Nicolas Rival、Arantxa Albornoz Grados、Lucie Schiavo、Françoise Colobert、Gilles Hanquet

  DOI：10.1016/j.tetlet.2015.10.067

  日期：2015.12

  A convenient and high yielding method for the cleavage and scavenging of p-methoxybenzyl protecting group of several alcohols using tert-butyl bromide in refluxing acetonitrile is described. Under these mild conditions other protecting groups such as acid sensitive allyl, benzyl, and Me3CPh2Si ethers, or isopropylidene acetals were unchanged. Interestingly, a selective alkoxy-PMB cleavage was observed

  描述了一种方便且高产率的方法，该方法使用叔丁基溴化物在回流的乙腈中裂解和清除几种醇的对甲氧基苄基保护基。在这些温和的条件下，其他保护基（例如酸敏感的烯丙基，苄基和Me 3 CPh 2 Si醚或亚丙基缩醛）保持不变。有趣的是，在PMB苯氧基醚存在下观察到选择性烷氧基-PMB裂解。
• 10.1002/chem.202401815
  作者：Zhang, Qian、Zhang, Jiabin、Qian, Hui、Ma, Shengming

  DOI：10.1002/chem.202401815

  日期：——

  With Fe(NO3)3 ⋅ 9H2O and TEMPO as cocatalysts and oxygen as green oxidant, PMB ethers have been converted to carboxylic acids at room temperature with high efficiency and selectivity. Total synthesis of naturally occuring (R)-6-hydroxy-7,9-octadecadiynoic acid has been realized by applying this protocol as key step. A mechanism involving oxygen-stabilized benzylic cation has been proposed based on

  以 Fe（NO3）3 ⋅ 9H2O 和 TEMPO 为助催化剂，以氧为绿色氧化剂，PMB 醚在室温下以高效率和选择性转化为羧酸。通过将该方案作为关键步骤，已经实现了天然存在的 （R）-6-羟基-7,9-十八烷二炔酸的完全合成。基于仔细研究，已经提出了一种涉及氧稳定苄基阳离子的机制。
• Dehydration Reactions in Water. Brønsted Acid−Surfactant-Combined Catalyst for Ester, Ether, Thioether, and Dithioacetal Formation in Water
  作者：Kei Manabe、Shinya Iimura、Xiang-Min Sun、Shū Kobayashi

  DOI：10.1021/ja026241j

  日期：2002.10.1

  Dehydration reactions in water have been realized by a surfactant-type catalyst, dodecylbenzenesulfonic acid (DBSA). These reactions include dehydrative esterification, etherification, thioetherification, and dithioacetalization. In these reactions, DBSA and substrates form emulsion droplets whose interior is hydrophobic enough to exclude water molecules generated during the reactions. Detailed studies on the esterification revealed that the yields of esters were affected by temperature, amounts of DBSA used, and the substrates. Esters were obtained in high yields for highly hydrophobic substrates. On the basis of the difference in hydrophobicity of the substrates, unique selective esterification and etherification in water were attained. Furthermore, chemospecific, three-component reactions under DBSA-catalyzed conditions were also found to proceed smoothly. This work not only may lead to environmentally benign systems but also will provide a new aspect of organic chemistry in water.