4-ethylbenzyl acetate | 67035-84-1

• 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-ethylbenzyl acetate
• 英文别名: p-ethylbenzyl acetate；acetic acid-(4-ethyl-benzyl ester)；Essigsaeure-(4-aethyl-benzylester)；1-Acetoxymethyl-4-aethyl-benzol；(4-Aethyl-benzyl)-acetat；p-Ethylbenzylacetat；(4-Ethylphenyl)methyl acetate
• CAS: 67035-84-1
• 化学式: C₁₁H₁₄O₂
• 分子量: 178.231
• InChiKey: IMQVSQQYENMRCT-UHFFFAOYSA-N

物化性质

• 沸点：
  130-132 °C(Press: 15 Torr)
• 密度：
  1.018±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  13
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4-ethylbenzyl acetate 在 chromium(III) oxide 、 calcium carbonate 作用下， 生成 4’-(acetoxymethyl)acetophenone
  参考文献：
  名称：

  The Use of Liquid Phase Oxidation for the Preparation of Nuclearly Substituted Styrenes. III. p-Vinylbenzyl Acetate

  摘要：

  DOI：

  10.1021/ja01200a017
• 作为产物：
  描述：

  对乙基苯甲酸 在 lithium aluminium tetrahydride 作用下， 以 吡啶 为溶剂， 生成 4-ethylbenzyl acetate
  参考文献：
  名称：

  Fischer, Alfred; Henderson, George N., Canadian Journal of Chemistry, 1981, vol. 59, p. 2314 - 2327

  摘要：

  DOI：

文献信息

• Copper-Catalyzed Late-Stage Benzylic C(sp3)–H Trifluoromethylation
  作者：Haiwen Xiao、Zhonglin Liu、Haigen Shen、Benxiang Zhang、Lin Zhu、Chaozhong Li

  DOI：10.1016/j.chempr.2019.02.006

  日期：2019.4

  Direct trifluoromethylation of C(sp3)–H bonds, especially in late stages, remains a formidable challenge. Herein, we describe the copper-catalyzed benzylic C(sp3)–H trifluoromethylation. With Cu(I) or Cu(II) as the catalyst, (bpy)Zn(CF3)2 (bpy = 2,2′-bipyridine) as the CF3 source, and NFSI (or Selectfluor) as the oxidant, site-selective benzylic C(sp3)–H trifluoromethylation is successfully implemented

  C（sp 3）–H键的直接三氟甲基化，尤其是在后期阶段，仍然是一个艰巨的挑战。在这里，我们描述了铜催化的苄基C（sp 3）–H三氟甲基化。以Cu（I）或Cu（II）为催化剂，以（bpy）Zn（CF 3）2（bpy = 2,2'-联吡啶）作为CF 3源，以NFSI（或Selectfluor）作为氧化剂选择性苄基C（sp 3）–H三氟甲基化已在温和条件下成功高效地实施。该协议不仅展示了广泛的底物范围和广泛的官能团兼容性，而且还允许对天然产物或药物衍生物进行有效的后期C（sp 3）–H三氟甲基化。
• PSMA BINDING LIGAND-LINKER CONJUGATES AND METHODS FOR USING
  申请人：Purdue Research Foundation

  公开号：US20160067341A1

  公开（公告）日：2016-03-10

  Described herein are prostate specific membrane antigen (PSMA) binding conjugates that are useful for delivering therapeutic, diagnostic and imaging agents. Also described herein are pharmaceutical composition containing them and methods of using the conjugates and compositions. Also described are processes for manufacture of the conjugates and the compositions containing them.

  本文描述了用于传递治疗、诊断和成像剂的前列腺特异性膜抗原（PSMA）结合共轭物。本文还描述了含有它们的药物组合物以及使用这些共轭物和组合物的方法。还描述了用于制造这些共轭物和含有它们的组合物的过程。
• ANTIMICROBIAL CATIONIC POLYCARBONATES
  申请人：CORPORATION INTERNATIONAL BUSINESS MACHINES

  公开号：US20140301968A1

  公开（公告）日：2014-10-09

  Antimicrobial cationic polymers having one or two cationic polycarbonate chains were prepared by organocatalyzed ring opening polymerization. One antimicrobial cationic polymer has a polymer chain consisting essentially of cationic carbonate repeat units linked to one or two end groups. The end groups can comprise a covalently bound form of biologically active compound such as cholesterol. Other antimicrobial cationic polymers have a random copolycarbonate chain comprising a minor mole fraction of hydrophobic repeat units bearing a covalently bound form of a vitamin E and/or vitamin D2. The cationic polymers exhibit high activity and selectivity against Gram-negative and Gram-positive microbes and fungi.

  具有一个或两个阳离子聚碳酸酯链的抗菌阳离子聚合物是通过有机催化的环氧开聚合制备的。其中一种抗菌阳离子聚合物具有基本由阳离子碳酸酯重复单元构成的聚合物链，与一个或两个末端基团相连。末端基团可以包括胆固醇等生物活性化合物的共价结合形式。其他抗菌阳离子聚合物具有随机共聚碳酸酯链，其中含有少量疏水重复单元，带有维生素E和/或维生素D2的共价结合形式。这些阳离子聚合物对革兰氏阴性和革兰氏阳性微生物和真菌表现出高活性和选择性。
• Copper‐Catalyzed Intermolecular Enantioselective Radical Oxidative C(sp ³ )−H/C(sp)−H Cross‐Coupling with Rationally Designed Oxazoline‐Derived N,N,P(O)‐Ligands
  作者：Lin Liu、Kai‐Xin Guo、Yu Tian、Chang‐Jiang Yang、Qiang‐Shuai Gu、Zhong‐Liang Li、Liu Ye、Xin‐Yuan Liu

  DOI：10.1002/anie.202110233

  日期：2021.12.13

  C(sp3 )-C(sp) cross-coupling of (hetero)benzylic and (cyclic)allylic C-H bonds with terminal alkynes that occurs with high to excellent enantioselectivity. Critical to the success is the rational design of chiral oxazoline-derived N,N,P(O)-ligands that not only tolerate the strong oxidative conditions which are requisite for intermolecular hydrogen atom abstraction (HAA) processes but also induce the

  C(sp3 )-H 键与容易获得的末端炔烃的分子间不对称自由基氧化 C(sp3 )-C(sp) 交叉偶联是一种很有前景的方法来形成手性 C(sp3 )-C(sp) 键，因为高原子和阶梯经济，但仍未得到充分探索。在这里，我们报告了铜催化的（杂）苄基和（环）烯丙基 CH 键与末端炔烃的不对称 C(sp3 )-C(sp) 交叉偶联，该键具有高到优异的对映选择性。成功的关键是手性恶唑啉衍生的 N,N,P(O)-配体的合理设计，它不仅能耐受分子间氢原子提取 (HAA) 过程所需的强氧化条件，而且还能诱导具有挑战性的对映控制。直接获得一系列合成有用的手性苄基炔烃和 1,4-烯炔，
• VITAMIN FUNCTIONALIZED GEL-FORMING BLOCK COPOLYMERS FOR BIOMEDICAL APPLICATIONS
  申请人：INTERNATIONAL BUSINESS MACHINES CORPORATION

  公开号：US20180117162A1

  公开（公告）日：2018-05-03

  Gel-forming block copolymers were prepared comprising i) a central hydrophilic block consisting essentially of a divalent poly(ethylene oxide) chain and ii) two peripheral monocarbonate or polycarbonate hydrophobic blocks linked to the central block by linking groups bearing one or more hydrogen bond forming *—N(H)—* groups. The hydrophobic blocks comprise one or more vitamin-bearing subunits. The gel-forming block copolymers can be used to prepare various biodegradable and/or biocompatible hydrogel and organogel drug compositions, in particular antimicrobial and/or anti-tumor drug compositions. The hydrogel compositions have utility in depot injections for drug delivery. The hydrogen bonding *—N(H)—* group(s) provide longer in vivo lifetime of the hydrogel before degradation and a more prolonged and controlled release rate of a hydrophobic drug compared to similar hydrogels prepared from poly(ethylene glycol).

  制备了包含以下组成部分的凝胶形成嵌段共聚物：i）主要由二价聚乙二醇链组成的中心亲水性块和ii）通过带有一个或多个氢键形成*—N(H)—*基团连接到中心块的两个外周单碳酸酯或多碳酸酯疏水性块。疏水性块包含一个或多个含维生素的亚单位。这些凝胶形成嵌段共聚物可用于制备各种可生物降解和/或生物相容的水凝胶和有机凝胶药物组合物，特别是抗微生物和/或抗肿瘤药物组合物。水凝胶组合物在药物输送的库存注射中具有实用性。与由聚乙二醇制备的类似水凝胶相比，氢键*—N(H)—*基团提供了凝胶在体内降解之前更长的生命周期，以及与水凝胶相比更延长和控制释放速率的疏水性药物。