2-((2-bromophenyl)amino)ethan-1-ol | 87762-20-7

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: 2-((2-bromophenyl)amino)ethan-1-ol
• 英文别名: N-(2-hydroxyethyl)-2-bromoaniline；2-(2-Bromo-phenylamino)-ethanol；2-(2-bromoanilino)ethanol
• CAS: 87762-20-7
• 化学式: C₈H₁₀BrNO
• 分子量: 216.077
• InChiKey: GFAZPFCJTBVZLC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  11
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  32.3
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-((2-bromophenyl)amino)ethan-1-ol 在 racemic-2-(di-tert-butylphosphino)-1,1′-binaphthyl 、 palladium diacetate 、 caesium carbonate 作用下， 以 甲苯 为溶剂， 反应 24.0h， 以87%的产率得到3,4-二氢-2H-1,4-苯并噁嗪
  参考文献：
  名称：

  Palladium-Catalyzed Intramolecular C−O Bond Formation

  摘要：

  A number of oxygen heterocycles were synthesized using the palladium-catalyzed intramolecular etherification of aryl halides by employing di-tert-butylphosphinobiaryl ligands. The reaction proceeds under mild conditions using weak bases such as Cs2CO3 or K3PO4. A variety of functional groups are tolerated in the reaction. and enantioenriched alcohols can be coupled without erosion of optical purity. The mildness of the reaction conditions allows for the use of polyfunctionalized substrates. This method was used as the key step in the synthesis of MKC-242, an antidepressant currently in clinical trials. The synthesis of MKC-242 was achieved in 40% overall yield from commercially available sesamol and acrylonitrile,

  DOI：

  10.1021/ja012046d
• 作为产物：
  描述：

  2-(2-bromophenoxy)acetic acid 在 18-冠醚-6 、 水 、 potassium hydride 、 N,N'-羰基二咪唑 作用下， 反应 0.6h， 生成 2-((2-bromophenyl)amino)ethan-1-ol
  参考文献：
  名称：

  Alkoxide-accelerated Smiles rearrangements. Synthesis of N-(2-hydroxyethyl)anilines from N-(2-hydroxyethyl)(aryloxy)acetamides

  摘要：

  DOI：

  10.1021/jo00173a076

文献信息

• Palladium-Catalyzed Aminomethylation and Cyclization of Enynol to O-Heterocycle Confined 1,3-Dienes
  作者：Houjian Yu、Bangkui Yu、Haocheng Zhang、Hanmin Huang

  DOI：10.1021/acs.orglett.1c01019

  日期：2021.5.21

  electrophilicity of the allylpalladium intermediates enables the regioselectively intramolecular 1,2-addition of enynol in the presence of aminal. This aminomethylation and cyclization reaction via C–N bond activation and intramolecular nucleophilic addition provides a rare example for the synthesis of O-containing heterocycle-confined 1,3-dienes, which is of synthetic potential for further derivatization. The method

  烯丙基钯中间体的亲电性的合理调节可在存在缩醛胺的情况下使烯醇的区域选择性地分子内1,2-加成。通过C–N键激活和分子内亲核加成反应进行的氨甲基化和环化反应为合成含O的杂环限定的1,3-二烯提供了一个罕见的例子，它具有进一步衍生化的合成潜力。该方法具有广泛的底物通用性以及官能团相容性，并且有效地提供了具有5个，6个和8元的具有各种官能团的含O杂环的所需产物的广泛范围。
• Chemoselective Palladium-Catalyzed Direct C-H Arylation of 5-Carboxyimidazoles: Unparalleled Access to Fused Imidazole-Based Tricycles Containing Six-, Seven- or Eight-Membered Rings
  作者：Jérémy Thireau、Cédric Schneider、Christine Baudequin、Sandrine Gaurrand、Patrick Angibaud、Lieven Meerpoel、Vincent Levacher、Olivier Querolle、Christophe Hoarau

  DOI：10.1002/ejoc.201700297

  日期：2017.5.3

  without CuI assistance in 1,4-dioxane as a low-polarity solvent was explored. The method was suitable for the synthesis of fused imidazole-based tricyclic systems incorporating medium-sized rings, including, for the first time, eight-membered rings, which are valuable in modern drug design.

  对化学选择性 Pd 催化的 N-苄基化 5-羧基咪唑与卤化物在作为低极性溶剂的 1,4-二恶烷中有或没有 CuI 辅助的分子间和分子内直接 C-H 芳基化进行了广泛的研究。该方法适用于合成包含中等大小环的稠合咪唑基三环系统，包括首次在现代药物设计中有价值的八元环。
• Palladium-Catalyzed Intramolecular Carbene Insertion into C(sp³ )−H Bonds
  作者：Daniel Solé、Francesco Mariani、M.-Lluïsa Bennasar、Israel Fernández

  DOI：10.1002/anie.201602020

  日期：2016.5.23

  palladium‐catalyzed carbene insertion into C(sp3)−H bonds leading to pyrrolidines was developed. The coupling reaction can be catalyzed by both Pd0 and PdII, is regioselective, and shows a broad functional group tolerance. This reaction is the first example of palladium‐catalyzed C(sp3)−C(sp3) bond assembly starting from diazocarbonyl compounds. DFT calculations revealed that this direct C(sp3)−H bond functionalization

  开发了钯催化的卡宾插入C（sp 3）-H键导致吡咯烷。偶合反应可被Pd 0和Pd II催化，具有区域选择性，并显示出宽泛的官能团耐受性。该反应是从重氮羰基化合物开始的钯催化的C（sp 3）-C（sp 3）键组装的第一个例子。DFT计算表明，这种直接的C（sp 3）-H键官能化反应涉及前所未有的一致的金属化-去质子化步骤。
• A Modular Strategy for the Synthesis of Macrocycles and Medium-Sized Rings via Cyclization/Ring Expansion Cascade Reactions
  作者：Illya Zalessky、Jack M. Wootton、Jerry K. F. Tam、Dominic E. Spurling、William C. Glover-Humphreys、James R. Donald、Will E. Orukotan、Lee C. Duff、Ben J. Knapper、Adrian C. Whitwood、Theo F. N. Tanner、Afjal H. Miah、Jason M. Lynam、William P. Unsworth

  DOI：10.1021/jacs.4c00659

  日期：2024.2.28

  and medium-sized rings are important in many scientific fields and technologies but are hard to make using current methods, especially on a large scale. Outlined herein is a strategy by which functionalized macrocycles and medium-sized rings can be prepared using cyclization/ring expansion (CRE) cascade reactions, without resorting to high dilution conditions. CRE cascade reactions are designed to operate

  大环和中型环在许多科学领域和技术中都很重要，但使用现有方法很难制造，尤其是大规模制造。本文概述了一种策略，通过该策略可以使用环化/扩环（CRE）级联反应来制备官能化大环和中等大小的环，而不需要采用高稀释条件。 CRE 级联反应专门通过动力学有利的 5-7 元环环化步骤进行操作；这意味着避免了通常与经典的端到端大环化反应相关的问题。已经开发出一种模块化合成方法，以促进所需线性前体的简单组装，然后可以使用九种 CRE 方案之一将其转化为极其广泛的官能化大环化合物和中等大小的环。
• 10.1021/acs.orglett.4c01017
  作者：Hafeez, Saleem、Sharma, Ruchi、Jain, Swati、Sihag, Naveen、Bhartiya, Hemaang、Singh, Jitendra、Reddy, S. Rajagopala、Yadav, M Ramu

  DOI：10.1021/acs.orglett.4c01017

  日期：——

  We have demonstrated a Pd(0)-catalyzed Heck/C(sp3)–H activation cascade for the synthesis of spirocyclopropyl oxindoles in high yields from easily accessible ortho-bromoacrylamides. The formation of spirocyclopropyl oxindole is guided by an unconventional four-membered palladacycle through C(sp3)–H activation. The reaction exhibits a wide range of substrate scope and operates efficiently with a mere

  我们已经展示了 Pd(0) 催化的 Heck/C(sp 3 )–H 活化级联，用于从易于获得的邻溴丙烯酰胺中高产率合成螺环丙基羟吲哚。螺环丙基羟吲哚的形成是由非常规四元钯环通过 C(sp 3 )–H 活化引导的。该反应表现出广泛的底物范围，并且仅用 0.5 mol% 的 Pd 催化剂即可有效运行。此外，微波条件的使用有利于反应快速完成。此外，这种螺环丙烷化策略可以与[3 + 2]环加成结合产生螺吡咯烷羟吲哚，为制备(±)-horsfiline和(±)-coerulescine等生物碱提供了有价值的方法。