2-(4-methoxyphenyl)-5-methyloxazol-4(5H)-one | 1393357-19-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 2-(4-methoxyphenyl)-5-methyloxazol-4(5H)-one
• 英文别名: 2-(4-Methoxyphenyl)-5-methyl-1,3-oxazol-4-one；2-(4-methoxyphenyl)-5-methyl-1,3-oxazol-4-one
• CAS: 1393357-19-1
• 化学式: C₁₁H₁₁NO₃
• 分子量: 205.213
• InChiKey: GLFLUVWBNCXUGV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  47.9
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  dec-1-yn-3-one 、 2-(4-methoxyphenyl)-5-methyloxazol-4(5H)-one 在 (S)-bis[3,5-bis(trifluoromethyl)phenyl][1,5,7-triazabicyclo-[4.3.0]-non-5-ene-3-spiro-6'-(6',7'-dihydro-5'H-dibenzo[a,c]cycloheptene)-8-yl]methanol 作用下， 以 甲苯 为溶剂， 反应 48.0h， 以90%的产率得到
  参考文献：
  名称：

  Chiral Guanidine-catalyzed 1,4-Addition Reaction of 5H-Oxazol-4-ones to Alkynones

  摘要：

  使用在适当位置带有羟基的手性胍催化剂，开发了 5H-恶唑-4-酮与炔酮的不对称 1,4-加成反应，并将其应用于多种底物。该方法提供了合成上有用的具有手性季α-碳原子的烯酮取代的α-羟基酸衍生物。

  DOI：

  10.1246/cl.2012.1675

文献信息

• Highly Stereoselective Synthesis of α-Alkyl-α-Hydroxycarboxylic Acid Derivatives Catalyzed by a Dinuclear Zinc Complex
  作者：Barry M. Trost、Keiichi Hirano

  DOI：10.1002/anie.201201116

  日期：2012.6.25

  dinuclear zinc–ProPhenol catalyst enables highly enantioselective nitro‐Michael reactions with oxazol‐4(5H)‐ones as nucleophilic substrates (see scheme, Nap=2‐naphthyl). This work highlights the utility of the ProPhenol family of ligands. The modular nature of these ligands proved crucial in the optimization of reaction conditions to achieve excellent stereoselectivities.

  双核锌-ProPhenol催化剂可与作为亲核底物的恶唑-4（5 H）-酮进行高度对映选择性的硝基-迈克尔反应（请参阅方案，Nap = 2-萘基）。这项工作突出了ProPhenol配体家族的实用性。这些配体的模块性质被证明对于优化反应条件以实现出色的立体选择性至关重要。
• Cation Control of Diastereoselectivity in Iridium-Catalyzed Allylic Substitutions. Formation of Enantioenriched Tertiary Alcohols and Thioethers by Allylation of<i>5H</i>-Oxazol-4-ones and<i>5H</i>-Thiazol-4-ones
  作者：Wenyong Chen、John F. Hartwig

  DOI：10.1021/ja410650e

  日期：2014.1.8

  corresponding magnesium enolates with high diastereoselectivity. The allylation of substituted 5H-oxazol-4-ones provides rapid access to enantioenriched tertiary α-hydroxy acid derivatives unavailable through Mo-catalyzed allylic substitution. The allylation of substituted 5H-thiazol-4-ones provides a novel method to synthesize enantioenriched tertiary thiols and thioethers. The observed cation effect implies

  我们报告了由金属环铱配合物催化的取代 5H-恶唑-4-酮和 5H-噻唑-4-酮的高度非对映选择性和对映选择性烯丙基化。通过使用相应的烯醇锌，以高非对映选择性发生取代的 5H-恶唑-4-酮的对映选择性 Ir 催化烯丙基化反应；取代的 5H-噻唑-4-酮的对映选择性 Ir 催化烯丙基化与相应的镁烯醇化物一起发生，具有高非对映选择性。取代的 5H-恶唑-4-酮的烯丙基化可快速获得通过 Mo 催化的烯丙基取代无法获得的对映体富集的叔 α-羟基酸衍生物。取代的 5H-噻唑-4-酮的烯丙基化提供了一种合成富含对映体的叔硫醇和硫醚的新方法。
• Highly Enantio- and Diastereoselective [4 + 2] Cycloaddition of 5<i>H</i>-oxazol-4-ones with <i>N</i>-Maleimides
  作者：Shuai Qiu、Richmond Lee、Bo Zhu、Michelle L. Coote、Xiaowei Zhao、Zhiyong Jiang

  DOI：10.1021/acs.joc.6b01451

  日期：2016.9.2

  An organocatalytic asymmetric reaction between 5H-oxazol-4-ones and N-substituted maleimides is disclosed. Employing Takemoto's chiral tertiary amine-thiourea as the catalyst, [4 + 2] annulation reactions were performed with high chemoselectivity, leading to a series of biologically important chiral oxo-bridged piperidone-fused succinimides in good to excellent enantioselectivities (up to >99% ee) and >19:1 dr.
• Highly enantioselective α-sulfenylation of 5H-oxazol-4-ones to N-(sulfanyl)succinimides
  作者：Mei Xu、Baokun Qiao、Shaobo Duan、Hongjun Liu、Zhiyong Jiang

  DOI：10.1016/j.tet.2014.09.037

  日期：2014.11

  An unprecedented asymmetric alpha-sulfenylation of 5H-oxazol-4-ones to N-(sulfanyl)succinimides has been established, to access various alpha-sulfenylated adducts with good to excellent enantioselectivities (86-95% ee) by utilizing a cinchona alkaloid-derived squaramide as catalyst. The conditions of this alpha-sulfenylation protocol simultaneously satisfy N-(arylthio)succinimides, N-(benzylthio)succinimides, and N-(alkylthio)succinimides by tuning the substituted groups of 5H-oxazol-4-ones on the 2-position as well as additives. (C) 2014 Elsevier Ltd. All rights reserved.
• 1,4-addition reaction of 5H-oxazol-4-ones to vinyl ketones catalyzed by chiral guanidines
  作者：Akane Morita、Tomonori Misaki、Takashi Sugimura

  DOI：10.1016/j.tetlet.2014.11.079

  日期：2015.1

  In this Letter, a chiral guanidine-catalyzed 1,4-addition reaction of 5H-oxazol-4-ones to vinyl ketones is described. The 1,4-addition reaction proceeded with a high enantioselectivity using 5H-oxazol-4-ones, substituted with a 3-chloro-5-methylphenyl group, as pronucleophiles and a newly developed chiral guanidine as a catalyst. The optimized reaction conditions were also effective in achieving excellent enantioselectivity in the 1,6-addition to dienones. Subsequent solvolysis of the 1,4-addition adduct yielded the corresponding alpha-hydroxy-5-oxocarboxylates. (C) 2014 Elsevier Ltd. All rights reserved.