3,4-dimethoxybenzyl benzoate | 101538-31-2

• 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: 3,4-dimethoxybenzyl benzoate
• 英文别名: (3,4-dimethoxyphenyl)methyl benzoate
• CAS: 101538-31-2
• 化学式: C₁₆H₁₆O₄
• 分子量: 272.301
• InChiKey: AVVUKAFKMLDGOH-UHFFFAOYSA-N

物化性质

• 沸点：
  389.9±27.0 °C(Predicted)
• 密度：
  1.153±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  20
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  44.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  Tebbe's reagent 、 3,4-dimethoxybenzyl benzoate 在 吡啶 作用下， 以 甲苯 为溶剂， 反应 40.0h， 以80.5 mg的产率得到2-phenyl-4-(3,4-dimethoxyphenyl)-1-butene
  参考文献：
  名称：

  超越 Tebbe 烯烃：酯直接转化为酮或烯烃

  摘要：

  已经开发出通过 Tebbe 试剂的专有作用将酯直接、有效且操作简单的转化为酮或烯烃。该转化利用 Tebbe 试剂的双重特性，即在各种取代的乙烯基醚反应中作为亚甲基化试剂和重排催化剂。由此产生的转化涉及连续的亚甲基化和重排反应，它为酮或烯烃的合成提供了高度的选择性。还审查了所开发方法的范围和局限性。

  DOI：

  10.1055/s-0039-1691594
• 作为产物：
  描述：

  3,4-二甲氧基苯甲醛 在 sodium tetrahydroborate 、 三乙胺 作用下， 以 乙醚 、 异丙醇 为溶剂， 反应 28.0h， 生成 3,4-dimethoxybenzyl benzoate
  参考文献：
  名称：

  Esters of benzoic, 5-arylisoxazole-3-carboxylic and 4,5-dichloroisothiazole-3-carboxylic acids

  摘要：

  DOI：

  10.1134/s107036321406019x

文献信息

• Zn-Catalyzed<i>tert</i>-Butyl Nicotinate-Directed Amide Cleavage as a Biomimic of Metallo-Exopeptidase Activity
  作者：Clarence C. D. Wybon、Carl Mensch、Charlie Hollanders、Charlène Gadais、Wouter A. Herrebout、Steven Ballet、Bert U. W. Maes

  DOI：10.1021/acscatal.7b02599

  日期：2018.1.5

  A two-step catalytic amide-to-ester transformation of primary amides under mild reaction conditions has been developed. A tert-butyl nicotinate (tBu nic) directing group is easily introduced onto primary amides via Pd-catalyzed amidation with tert-butyl 2-chloronicotinate. A weak base (Cs2CO3 or K2CO3) at 40–50 °C can be used provided that 1,1′-bis(dicyclohexylphosphino)ferrocene is selected as ligand

  已经开发了在温和的反应条件下伯酰胺的两步催化酰胺转化为酯的方法。甲叔丁基烟酸甲酯（吨卜NIC）指示组很容易通过Pd催化的酰胺化与引入到伯酰胺叔丁基2-氯烟。如果选择1,1'-双（二环己基膦基）二茂铁作为配体，则可以使用40–50°C的弱碱（Cs 2 CO 3或K 2 CO 3）。所述吨卜NIC活化酰胺随后允许的Zn（OAc）2催化的醇解nonsolvolytic在吨在中性反应条件下于40–60°C的BuOAc。激活机制是仿生的：在引导基团中吡啶的C3酯取代基构成了适合Zn螯合的反式构象异构体，C═O酰胺-Zn-N引导基团，并且Zn配位醇还被激活为亲核试剂通过氢键与催化剂的乙酸酯配体键合。另外，乙酸盐配体有助于分子内O至N质子转移。化学选择性相对于其他官能团以及与具有挑战性的反应伙伴（如肽，糖和固醇）的相容性说明了这种两步酰胺裂解方法的合成适用性。该Ť卜NIC酰胺在裂解前不需要纯化。初步实验
• Ester Formation via Symbiotic Activation Utilizing Trichloroacetimidate Electrophiles
  作者：Nivedita S. Mahajani、Rowan I. L. Meador、Tomas J. Smith、Sarah E. Canarelli、Arijit A. Adhikari、Jigisha P. Shah、Christopher M. Russo、Daniel R. Wallach、Kyle T. Howard、Alexandra M. Millimaci、John D. Chisholm

  DOI：10.1021/acs.joc.9b00745

  日期：2019.6.21

  Trichloroacetimidates are useful reagents for the synthesis of esters under mild conditions that do not require an exogenous promoter. These conditions avoid the undesired decomposition of substrates with sensitive functional groups that are often observed with the use of strong Lewis or Brønsted acids. With heating, these reactions have been extended to benzyl esters without electron-donating groups. These inexpensive

  三氯乙亚氨酸酯是在温和条件下合成酯的有用试剂，不需要外源促进剂。这些条件避免了带有敏感官能团的底物发生不希望的分解，这种分解通常在使用强路易斯酸或布朗斯台德酸的情况下观察到。通过加热，这些反应已扩展为不具有给电子基团的苄基酯。这些廉价且方便的方法应在复杂基质中酯的形成中找到应用。
• Cross-Dehydrogenating Coupling of Aldehydes with Amines/R-OTBS Ethers by Visible-Light Photoredox Catalysis: Synthesis of Amides, Esters, and Ureas
  作者：Ganesh Pandey、Suvajit Koley、Ranadeep Talukdar、Pramod Kumar Sahani

  DOI：10.1021/acs.orglett.8b02537

  日期：2018.9.21

  A straightforward synthesis of amides, ureas, and esters is reported by visible-light cross-dehydrogenating coupling (CDC) of aldehydes (or amine carbaldehydes) and amines/R-OTBS ethers by photoredox catalysis. The reaction is found to be general and high yielding. A plausible mechanistic pathway has been proposed for these transformations and is supported by appropriate controlled experiments.

  通过光氧化还原催化醛（或胺甲醛）和胺/ R-OTBS醚的可见光交叉脱氢偶联（CDC），报道了酰胺，脲和酯的直接合成。发现该反应是一般的且高收率的。已经为这些转化提出了一种可行的机理途径，并得到了适当的受控实验的支持。
• Inhibitory effects of benzyl benzoate and its derivatives on angiotensin II-induced hypertension
  作者：Osamu Ohno、Mao Ye、Tomoyuki Koyama、Kazunaga Yazawa、Emi Mura、Hiroshi Matsumoto、Takao Ichino、Kaoru Yamada、Kazuhiko Nakamura、Tomohiro Ohno、Kohji Yamaguchi、Junji Ishida、Akiyoshi Fukamizu、Daisuke Uemura

  DOI：10.1016/j.bmc.2008.03.056

  日期：2008.8

  Hypertension is a lifestyle-related disease which often leads to serious conditions such as heart disease and cerebral hemorrhage. Angiotensin II (Ang II) plays an important role in regulating cardiovascular homeostasis. Consequently, antagonists that block the interaction of Ang II with its receptors are thought to be effective in the suppression of hypertension. In this study, we searched for plant compounds that had antagonist-like activity toward Ang II receptors. From among 435 plant samples, we found that EtOH extract from the resin of sweet gum Liquidambar styraciflua strongly inhibited Ang II signaling. We isolated benzyl benzoate and benzyl cinnamate from this extract and found that those compounds inhibited the function of Ang II in a dose-dependent manner without cytotoxicity. An in vivo study showed that benzyl benzoate significantly suppressed Ang II-induced hypertension in mice. In addition, we synthesized more than 40 derivatives of benzyl benzoate and found that the meta-methyl and 3-methylbenzyl 2'-nitrobenzoate derivatives showed about 10-fold higher activity than benzyl benzoate itself. Thus, benzyl benzoate, its derivatives, and benzyl cinnamate may be useful for reducing hypertension. (c) 2008 Elsevier Ltd. All rights reserved.
• Tiffeneau; Fuhrer, Bulletin de la Societe Chimique de France, 1914, vol. <4> 15, p. 171
  作者：Tiffeneau、Fuhrer

  DOI：——

  日期：——