methoxy-(4-methoxy-phenyl)-acetic acid ethyl ester | 147374-18-3

• 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: methoxy-(4-methoxy-phenyl)-acetic acid ethyl ester
• 英文别名: Methoxy-(4-methoxy-phenyl)-essigsaeure-aethylester；Ethyl 2-methoxy-2-(4-methoxyphenyl)acetate
• CAS: 147374-18-3
• 化学式: C₁₂H₁₆O₄
• 分子量: 224.257
• InChiKey: LXPPDMNLALVLIS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  16
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.42
• 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：

  alkaline earth salt of/the/ methylsulfuric acid 在 sodium methylate 作用下， 生成 methoxy-(4-methoxy-phenyl)-acetic acid ethyl ester
  参考文献：
  名称：

  2-(4'-Methoxyphenyl)-2-methoxyethanol¹

  摘要：

  DOI：

  10.1021/ja01633a067

文献信息

• How Does Organic Structure Determine Organic Reactivity? Nucleophilic Substitution and Alkene-Forming Elimination Reactions of α-Carbonyl and α-Thiocarbonyl Substituted Benzyl Derivatives
  作者：John P. Richard、Shrong-Shi Lin、Jeanne M. Buccigross、Tina L. Amyes

  DOI：10.1021/ja9629064

  日期：1996.1.1

  The effect of α-(N,N-dimethylcarbamoyl) and α-(N,N-dimethylthiocarbamoyl) substituents on the rate constants for partitioning of α-substituted 1-(4-methoxyphenyl)ethyl carbocations between nucleophilic addition of 50:50 (v:v) MeOH/H2O (ks, s-1) and deprotonation by this solvent (ke, s-1) have been investigated. The data show that these α-amide and α-thioamide substituents result in 80-fold and ≥30 000-fold

  α-(N,N-二甲基氨基甲酰基)和α-(N,N-二甲基硫代氨基甲酰基)取代基对α-取代的1-(4-甲氧基苯基)乙基碳正离子在50:50亲核加成之间分配速率常数的影响( v:v) MeOH/H2O (ks, s-1) 和该溶剂的去质子化 (ke, s-1) 已被研究。数据显示，这些 α-酰胺和 α-硫代酰胺取代基分别导致溶剂捕获 4-甲氧基苄基碳正离子的 ks 减少 80 倍和≥30 000 倍，但它们导致的变化要小得多。 ke用于通过溶剂使相应的α-取代的1-（4-甲氧基苯基）乙基碳正离子去质子化。因此，α-硫代酰胺取代基对 α-取代的 1-苯乙基碳正离子在溶剂分解和消除产物的形成之间分配的巨大影响主要是由于该 α-取代基对溶剂捕获碳正离子的 ks 的影响. 实验和计算研究的结果与共同...
• APPARATUS AND PROCESS FOR PREPARING REACTIVE LIGNIN WITH HIGH YIELD FROM PLANT BIOMASS FOR PRODUCTION OF FUELS AND CHEMICALS
  申请人：Washington State University

  公开号：US20150099868A1

  公开（公告）日：2015-04-09

  Provided are methods for aqueous isolation of depolymerized lignin in high yield from a lignin-containing biomass composition, comprising positioning a lignin-containing biomass composition into a flowthrough thermal reactor chamber to provide for passage of an aqueous fluid therethrough, contacting the lignin biomass composition with the aqueous fluid under elevated temperature conditions sufficient to provide for lignin release and depolymerization, flowing the aqueous fluid through the reactor chamber under the elevated temperature conditions, to provide an output aqueous fluid comprising released depolymerized lignin, and collecting the depolymerized lignin. Particular aspects further comprise hydrogenation and/or hydrodeoxygenation (HDO) of the released depolymerized lignin with a catalyst or catalyst system for deconstruction of the released depolymerized lignin into lower molecular weight reactive lignin moieties and oligomers amenable for subsequent removal of oxygen to produce hydrocarbon fuels and/or chemicals and/or compounds. Systems for practicing the methods are also provided, along with highly purified depolymerized lignin.
• US5243066A
  申请人：——

  公开号：US5243066A

  公开（公告）日：1993-09-07
• US9518076B2
  申请人：——

  公开号：US9518076B2

  公开（公告）日：2016-12-13
• 2-(4'-Methoxyphenyl)-2-methoxyethanol¹
  作者：Fawzy G. Baddar

  DOI：10.1021/ja01633a067

  日期：1954.2