4-bromo-N-[(1S)-1-phenylethyl]benzamide | 220306-70-7

• 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-bromo-N-[(1S)-1-phenylethyl]benzamide
• 英文别名: (S)-4-bromo-N-(1-phenylethyl)benzamide；4-bromo-N-(1-phenyl-ethyl)-benzamide
• CAS: 220306-70-7
• 化学式: C₁₅H₁₄BrNO
• 分子量: 304.186
• InChiKey: HYHSCLDDJSDEQE-NSHDSACASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.133
• 拓扑面积：
  29.1
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  4-bromo-N-[(1S)-1-phenylethyl]benzamide 在 四(三苯基膦)钯 、 正丁基锂 、 potassium carbonate 作用下， 以 四氢呋喃 、 水 、 甲苯 为溶剂， 反应 16.5h， 生成 (S)-3',5'-diformyl-4'-hydroxy-N-(1-phenylethyl)-[1,1'-biphenyl]-4-carboxamide
  参考文献：
  名称：

  ‘Double chiral’ new members of calixsalen family

  摘要：

  Synthesis and X-ray diffraction studies on the first examples of 'double chiral' calixsalens are presented. In these molecules, one can clearly distinguish two chiral zones. The first one is made by the macrocycle base, whereas the second chiral zone is set up of the additional chirality elements in the tail of the molecule. The 'double chiral' calixsalens are formed through cyclocondensation between chiral vicinal diamine of trans-1,2-diaminocyclohexane type and chiral C-5 substituted 2-hydroxyisophthalaldehyde derivatives. The absolute configuration of the dialdehyde did not affect the yield of the macrocyclization reaction. The presence of secondary amides in the tail part of the macrocycle leads to formation of hydrogen bonding network in the solid state, while sterical hindrance preserve interdigitation, thus, 'double chiral' calixsalens do not form aggregates typical for other calixsalens. (C) 2017 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2017.08.021
• 作为产物：
  描述：

  4-溴苯甲酸 在 氯化亚砜 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 5.0h， 生成 4-bromo-N-[(1S)-1-phenylethyl]benzamide
  参考文献：
  名称：

  ‘Double chiral’ new members of calixsalen family

  摘要：

  Synthesis and X-ray diffraction studies on the first examples of 'double chiral' calixsalens are presented. In these molecules, one can clearly distinguish two chiral zones. The first one is made by the macrocycle base, whereas the second chiral zone is set up of the additional chirality elements in the tail of the molecule. The 'double chiral' calixsalens are formed through cyclocondensation between chiral vicinal diamine of trans-1,2-diaminocyclohexane type and chiral C-5 substituted 2-hydroxyisophthalaldehyde derivatives. The absolute configuration of the dialdehyde did not affect the yield of the macrocyclization reaction. The presence of secondary amides in the tail part of the macrocycle leads to formation of hydrogen bonding network in the solid state, while sterical hindrance preserve interdigitation, thus, 'double chiral' calixsalens do not form aggregates typical for other calixsalens. (C) 2017 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2017.08.021

文献信息

• Regio- and Stereoselective (SN2) N-, O-, C- and S-Alkylation Using Trialkyl Phosphates
  作者：Amit Banerjee、Tomohiro Hattori、Hisashi Yamamoto

  DOI：10.1055/a-1504-8366

  日期：2023.1

  Bimolecular nucleophilic substitution (SN2) is one of the most well-known fundamental reactions in organic chemistry to generate new molecules from two molecules. In principle, a nucleophile attacks from the back side of an alkylating agent having a suitable leaving group, most commonly a halide. However, alkyl halides are expensive, very harmful, toxic and not so stable, which makes them problematic

  双分子亲核取代 (SN2) 是有机化学中最著名的基本反应之一，用于从两个分子生成新分子。原则上，亲核试剂从具有合适离去基团（最常见的是卤化物）的烷化剂的背面攻击。然而，烷基卤价格昂贵、非常有害、有毒且不稳定，这使得它们在实验室使用中存在问题。相比之下，磷酸三烷基酯价格低廉、易于获得且在室温、空气中稳定且易于处理，但很少用作有机合成中的烷基化剂。在这里，我们描述了一种使用现成的磷酸三烷基酯对各种 N-、O-、C- 和 S-亲核试剂进行亲核烷基化的温和、直接和强大的方法。反应以优异的收率顺利进行，和定量产量在许多情况下，并涵盖广泛的底物。此外，通过手性中心构型的反转（高达 98% ee）实现了仲烷基的罕见立体选择性转移。
• Negishi Cross-Couplings Compatible with Unprotected Amide Functions
  作者：Georg Manolikakes、M.Sc. Zhibing Dong、Herbert Mayr、Jinshan Li、Paul Knochel

  DOI：10.1002/chem.200802349

  日期：2009.1.26

  Mild mannered: Unprotected amides and sulfonamides containing aryl bromides and iodides undergo, in the presence of S‐PHOS, smooth Negishi cross‐couplings with various zinc organometallic reagents, allowing the preparation of pharmaceutically relevant molecules (see scheme; S‐PHOS=2‐dicyclohexylphosphino‐2′,6′‐dimethoxybiphenyl).

  温和的态度：在S‐PHOS存在下，未保护的包含芳基溴化物和碘化物的酰胺和磺酰胺会与各种锌有机金属试剂进行平滑的Negishi交叉偶联，从而可制备药学上相关的分子（参见方案; S‐PHOS = 2‐二环己基膦基2'，6'-二甲氧基联苯）。
• Enantioselective Intermolecular Radical Amidation and Amination of Benzylic C−H Bonds via Dual Copper and Photocatalysis
  作者：Xuemeng Chen、Zhong Lian、Søren Kramer

  DOI：10.1002/anie.202217638

  日期：2023.3.20

  A method for enantioselective intermolecular benzylic C−H amidation and amination is reported. This dehydrogenative C−N bond formation displays broad substrate scope and good atom economy, is amenable to late-stage C−H functionalization, and enables easy access to 15N-labeling from cheap [15N]-NH4Cl.

  报道了一种对映选择性分子间苄基 C−H 酰胺化和胺化的方法。这种脱氢 C−N 键形成显示出广泛的底物范围和良好的原子经济性，适用于后期 C−H 功能化，并且能够从廉价的 [ 15 N]-NH 4 Cl轻松获得15 N-标记。
• ‘Double chiral’ new members of calixsalen family
  作者：Małgorzata Petryk、Agnieszka Janiak、Marcin Kwit

  DOI：10.1016/j.tetasy.2017.08.021

  日期：2017.10

  Synthesis and X-ray diffraction studies on the first examples of 'double chiral' calixsalens are presented. In these molecules, one can clearly distinguish two chiral zones. The first one is made by the macrocycle base, whereas the second chiral zone is set up of the additional chirality elements in the tail of the molecule. The 'double chiral' calixsalens are formed through cyclocondensation between chiral vicinal diamine of trans-1,2-diaminocyclohexane type and chiral C-5 substituted 2-hydroxyisophthalaldehyde derivatives. The absolute configuration of the dialdehyde did not affect the yield of the macrocyclization reaction. The presence of secondary amides in the tail part of the macrocycle leads to formation of hydrogen bonding network in the solid state, while sterical hindrance preserve interdigitation, thus, 'double chiral' calixsalens do not form aggregates typical for other calixsalens. (C) 2017 Elsevier Ltd. All rights reserved.