5-[1,1'-联苯]-4-基-2-苯基恶唑 | 852-36-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 5-[1,1'-联苯]-4-基-2-苯基恶唑
• 中文别名: [1,1'-联苯基]-4-羧酸,2'-硝基-
• 英文名称: 5-([1,1'-Biphenyl]-4-yl)-2-phenyloxazole
• 英文别名: 5-(biphenyl-4-yl)-2-phenyl-oxazole；2-phenyl-4-(biphenyl-4-yl)oxazole；5-biphenyl-4-yl-2-phenyloxazole；5-biphenyl-4-yl-2-phenyl-oxazole；5-Biphenyl-4-yl-2-phenyl-oxazol；5-(1,1'-biphenyl)-4-yl-2-phenyloxazole；2-phenyl-5-(4-phenylphenyl)-1,3-oxazole
• CAS: 852-36-8
• 化学式: C₂₁H₁₅NO
• mdl: MFCD00051185
• 分子量: 297.356
• InChiKey: GCQCIPNRUROCBG-UHFFFAOYSA-N

物化性质

• 熔点：
  152-154 °C
• 沸点：
  507.4±48.0 °C(Predicted)
• 密度：
  1.137±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  6.3
• 重原子数：
  23
• 可旋转键数：
  3
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  26
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 海关编码：
  2934999090

反应信息

• 作为产物：
  描述：

  N-(2-([1,1’-biphenyl]-4-yl)-2-oxoethyl)benzamide 生成 5-[1,1'-联苯]-4-基-2-苯基恶唑
  参考文献：
  名称：

  Hayes et al., Journal of the American Chemical Society, 1952, vol. 74, p. 1106

  摘要：

  DOI：

文献信息

• Synthesis of Substituted Oxazoles by Visible-Light Photocatalysis
  作者：Tanmay Chatterjee、Ji Young Cho、Eun Jin Cho

  DOI：10.1021/acs.joc.6b00989

  日期：2016.8.19

  A simple and practical method for the synthesis of substituted oxazoles has been developed using readily available α-bromoketones and benzylamines by visible-light photocatalysis at room temperature. The process, which requires 1 mol % of [Ru(bpy)3]Cl2 photocatalyst with K3PO4 and CCl3Br, is effective for accessing a variety of valuable oxazole compounds. The synthetic utility of our protocol was also

  已经开发了一种简单而实用的合成取代的恶唑的方法，该方法使用易得的α-溴代酮和苄胺，在室温下通过可见光光催化进行合成。该方法需要1摩尔％的具有K 3 PO 4和CCl 3 Br的[Ru（bpy）3 ] Cl 2光催化剂，可有效地获得各种有价值的恶唑化合物。我们的协议的合成效用也通过制备天然产物texaline得到了证明。
• One-Pot Friedel−Crafts/Robinson−Gabriel Synthesis of Oxazoles Using Oxazolone Templates
  作者：Manasi Keni、Jetze J. Tepe

  DOI：10.1021/jo0501590

  日期：2005.5.1

  We report herein a one-pot synthesis of 2,4,5-trisubstituted oxazoles via a Friedel−Crafts/Robinson−Gabriel synthesis using a general oxazolone template. Treatment of the oxazolone template with a range of aromatic nucleophiles provided the highly substituted oxazoles in good yields.

  我们在这里报告了使用一般的恶唑酮模板通过Friedel-Crafts / Robinson-Gabriel合成一锅合成2,4,5-三取代的恶唑。用一系列芳族亲核试剂处理恶唑酮模板可提供高收率的恶唑，并具有良好的收率。
• Metal-Free sp3 C–H Functionalization: PABS/I2-Promoted Synthesis of Polysubstituted Oxazole Derivatives from Arylethanones and 2-Amino-2-alkyl/arylacetic Acid
  作者：Guosheng Huang、Ting Hu、Hao Yan、Xingxing Liu、Chaoyang Wu、Yuxing Fan、Jing Huang

  DOI：10.1055/s-0035-1560660

  日期：——

  nonmetal-catalyzed process for the synthesis of polysubstituted oxazoles from inexpensive and readily available α-amino acids and methyl ketones is established. This reaction is proposed to achieve oxidative cleavage of C(sp 3 )–H bonds, followed by decarboxylation and annulation. The mild reaction conditions employed in both cases enable the tolerance of a wide range of functional groups as well as high reaction

  建立了一种由廉价且容易获得的 α-氨基酸和甲基酮合成多取代恶唑的非金属催化方法。该反应旨在实现 C(sp 3 )-H 键的氧化裂解，然后进行脱羧和环化。在这两种情况下采用的温和反应条件能够耐受广泛的官能团以及高反应效率。
• Visible-Light 2,4-Dinitrophenol-Mediated Photoannulation of α-Azidochalcones into 2,5-Diaryloxazoles
  作者：Uma Devi Newar、Satheesh Borra、Ram Awatar Maurya

  DOI：10.1021/acs.orglett.2c01691

  日期：2022.6.24

  photoannulation of α-azidochalcones into 2,5-diaryloxazoles was developed. The carbon–carbon double bond of α-azidochalcone was cleaved, leading to the formation of new C–O and C–N bonds in the photoannulation. Control experiments were carried out, and a plausible mechanism of the photoannulation was proposed. The scope of the reaction was studied by synthesizing a series of 2,5-diaryloxazoles including two

  开发了一种新型高效的可见光 2,4-二硝基苯酚 (2,4-DNP) 介导的 α-叠氮查尔酮光环化成 2,5-二芳基恶唑。α-叠氮查尔酮的碳碳双键被裂解，导致在光环化过程中形成新的 C-O 和 C-N 键。进行了对照实验，并提出了一种合理的光环化机制。通过以优异的收率合成一系列 2,5-二芳基恶唑，包括两种天然存在的恶唑（Texamine 和 Balsoxin），研究了反应的范围。
• Indium-mediated one-pot synthesis of benzoxazoles or oxazoles from 2-nitrophenols or 1-aryl-2-nitroethanones
  作者：Jung June Lee、Jihye Kim、Young Moo Jun、Byung Min Lee、Byeong Hyo Kim

  DOI：10.1016/j.tet.2009.08.059

  日期：2009.10

  One-pot reduction-triggered heterocyclizations from 2-nitrophenols to benzoxazoles and from 1-aryl-2-nitroethanones to oxazoles were investigated. In the presence of indium/AcOH in benzene at reflux, 2-nitrophenols and R-C(OMe)(3) (R=H, Me, Ph) produced excellent yields of corresponding benzoxazoles within an hour. Similarly, 1-aryl-2-nitroethanones and Ph-C(OMe)(3) in the presence of indiurn/AcOH in acetonitrile transformed into the corresponding oxazoles with good yields. (c) 2009 Elsevier Ltd. All rights reserved.