2-(3,5-dimethoxyphenyl)-N-methoxy-N-methylacetamide | 195001-43-5

• 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: 2-(3,5-dimethoxyphenyl)-N-methoxy-N-methylacetamide
• CAS: 195001-43-5
• 化学式: C₁₂H₁₇NO₄
• 分子量: 239.271
• InChiKey: AVGDXGYLWFDVPB-UHFFFAOYSA-N

物化性质

• 沸点：
  343.9±52.0 °C(Predicted)
• 密度：
  1.118±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  17
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  48
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-(3,5-dimethoxyphenyl)-N-methoxy-N-methylacetamide 在 potassium tert-butylate 、 sodium hydride 、 对甲苯磺酸 作用下， 以 四氢呋喃 、 乙醚 为溶剂， 反应 10.0h， 生成 6-(3',5'-dimethoxyphenyl)-2,6-dimethyl-3-methoxycyclohex-2-enone
  参考文献：
  名称：

  Use of Conjugated Dienones in Cyclialkylations:  Total Syntheses of Arucadiol, 1,2-Didehydromiltirone, (±)-Hinokione, (±)-Nimbidiol, Sageone, and Miltirone

  摘要：

  Functionalized hydrophenanthrenes can be prepared using a cyclialkylation-based strategy. These annulations are highly dependent on the directing effects of the arene substitutents and on conformational considerations. The utility of this methodology was featured in the syntheses of six diterpenoids.

  DOI：

  10.1021/jo970570q
• 作为产物：
  描述：

  (3,5-二甲氧基苯基)乙酸 在 氯化亚砜 、 potassium carbonate 、 N,N-二甲基甲酰胺 作用下， 以 水 、 甲苯 为溶剂， 反应 3.0h， 生成 2-(3,5-dimethoxyphenyl)-N-methoxy-N-methylacetamide
  参考文献：
  名称：

  铑，银和金的连续催化熔融二氢呋喃合成

  摘要：

  为了快速合成多环苯并稠合的二氢呋喃，开发了三级联反应法。第一步是α-芳基重氮酮与烯烃的铑催化环丙烷化。随后是银催化的扩环反应生成二氢呋喃，然后金催化环化反应形成苯并稠合的二氢呋喃。

  DOI：

  10.1021/ol2016548

文献信息

• ‘Wake-Up Call of A Sleeping Beauty’: Straightforward Synthesis of Functionalized β-(2-Pyridyl) Ketones from 2,6-Lutidine
  作者：Laure Bouchez、Cyril Gerbeaux、Marion Rusch、Maude Patoor、Madeleine Livendahl、Neil Press

  DOI：10.1055/s-0036-1588154

  日期：2017.6

  β-(2-Pyridyl) ketones are a unique class of heterocycles with valuable physicochemical properties and emerging relevance as pharmacophores. Herein we report a one-step process for the preparation of various substituted β-(2-pyridyl) ketones from the common starting material, 2,6-lutidine. Furthermore, we demonstrate the utility of this building block by synthesizing of a small set of antimalarial natural

  β-(2-吡啶基) 酮是一类独特的杂环化合物，具有有价值的理化性质和作为药效团的新兴相关性。在本文中，我们报告了一种从常见起始材料 2,6-二甲基吡啶制备各种取代 β-(2-吡啶基) 酮的一步法。此外，我们通过合成一小组抗疟天然产物来证明该构件的实用性。
• Gold-catalyzed construction of two adjacent quaternary stereocenters via sequential C–H functionalization and aldol annulation
  作者：Zhunzhun Yu、Haile Qiu、Lu Liu、Junliang Zhang

  DOI：10.1039/c5cc08880a

  日期：——

  A novel gold-catalyzed intermolecular C–H functionalization and aldol cyclization for the construction of two adjacent quaternary centers is presented.

  一种新颖的金催化的分子间C-H官能化和醛缩环化反应，用于构建两个相邻的四季胺中心。
• Alcohol Dehydrogenase‐Triggered Oxa‐Michael Reaction for the Asymmetric Synthesis of Disubstituted Tetrahydropyrans and Tetrahydrofurans
  作者：Harry Eastman、James Ryan、Beatriz Maciá、Vittorio Caprio、Elaine O'Reilly

  DOI：10.1002/cctc.201900658

  日期：2019.8.21

  oxanes) and tetrahydrofurans, in excellent conversion, yield and high enantiomeric and diastereomeric excess. To highlight the utility of the methodology, we report the synthesis of an analogue of the fungal antioxidant brocaketone A. Also described is the preparation of the (–)‐(R,R)‐enantiomer of the natural product, (+)‐(S,S)‐(cis‐6‐methyltetrahydropyran‐2‐yl)acetic acid.

  醇脱氢酶介导的不对称还原反应和随后的分子内oxa-Michael反应已经开发出来，用于制备四氢吡喃（或恶烷）和四氢呋喃，具有优异的转化率，收率和高对映异构体和非对映异构体过量。为了强调该方法的实用性，我们报告了真菌抗氧化剂溴酸甲壳素A的类似物的合成。还描述了天然产物（-）-（R，R）-对映异构体（+）-（S，S）-（顺式-6-甲基四氢吡喃-2-基）乙酸。
• Copper‐Catalyzed Aza‐Sonogashira Cross‐Coupling To Form Ynimines: Development and Application to the Synthesis of Heterocycles
  作者：Rémi Lavernhe、Rubén O. Torres‐Ochoa、Qian Wang、Jieping Zhu

  DOI：10.1002/anie.202110901

  日期：2021.11.2

  AbstractNitrogen‐substituted alkynes, such as ynamines and ynamides, are versatile synthetic building blocks. Ynimines bearing additional nucleophilic and electrophilic centers relative to ynamines and ynamides are expected to have high synthetic potential. However, their chemical reactivity remains unexplored owing mainly to the lack of synthetic accessibility. We report herein a versatile copper‐catalyzed synthesis of ynimines from readily available O‐acetyl ketoximes and terminal alkynes. A wide range of O‐acetyl ketoximes derived from diaryl ketones, aryl alkyl ketones and dialkyl ketones underwent cross‐coupling with a diverse set of terminal alkynes to afford the ynimines in good to excellent yields. An unprecedented [5+1] heteroannulation reaction exploiting the reactivity of the ynimine generated in situ was subsequently developed for the synthesis of medicinally important heterocycles, including isoquinolines, azaindoles, azabenzofurans, azabenzothiophenes and carbolines.
• Use of Conjugated Dienones in Cyclialkylations:  Total Syntheses of Arucadiol, 1,2-Didehydromiltirone, (±)-Hinokione, (±)-Nimbidiol, Sageone, and Miltirone
  作者：George Majetich、Shuang Liu、Jing Fang、David Siesel、Yong Zhang

  DOI：10.1021/jo970570q

  日期：1997.10.1

  Functionalized hydrophenanthrenes can be prepared using a cyclialkylation-based strategy. These annulations are highly dependent on the directing effects of the arene substitutents and on conformational considerations. The utility of this methodology was featured in the syntheses of six diterpenoids.