α-(3-chloro)-N-phenylnitrone | 32019-33-3

• 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: α-(3-chloro)-N-phenylnitrone
• 英文别名: N-(3-chlorobenzylidene)aniline oxide；1-(3-chlorophenyl)-N-phenylmethanimine oxide
• CAS: 32019-33-3
• 化学式: C₁₃H₁₀ClNO
• 分子量: 231.681
• InChiKey: ATVSMXSJLWNDKF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  28.8
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  α-(3-chloro)-N-phenylnitrone 在 potassium tert-butylate 作用下， 以 四氢呋喃 、 氯仿 为溶剂， 反应 4.08h， 生成 5-(3-chloro)-5-phenylaminocyclopent-2-enone
  参考文献：
  名称：

  LIC-KOR促进硝酮反应性：高共轭亚胺和仲胺的立体选择性合成

  摘要：

  在LIC-KOR碱，烷基锂（LIC）和氧化钾（KOR）的等摩尔混合物的存在下，金属化的烷氧基-1,3-二烯和α-芳基-N-苯基硝酮的反应性，（Schlosser，1994）[1]已经研究过了。涉及E1cb过程的级联反应立体选择性地提供乙氧基-N-苯基-1-芳基戊-2,4-二烯-1-亚胺。它们的酸性水解使得能够以高收率合成拟肽的5-芳基-5-苯基氨基环戊烯酮。

  DOI：

  10.1016/j.tetlet.2015.08.087
• 作为产物：
  描述：

  硝基苯 在 氯化铵 、 锌 作用下， 以 氯仿 、 水 为溶剂， 生成 α-(3-chloro)-N-phenylnitrone
  参考文献：
  名称：

  Synthesis and evaluation of novel 4-[(3H,3aH,6aH)-3-phenyl)-4,6-dioxo-2-phenyldihydro-2H-pyrrolo[3,4-d]isoxazol-5(3H,6H,6aH)-yl]benzoic acid derivatives as potent acetylcholinesterase inhibitors and anti-amnestic agents

  摘要：

  The present study was designed to synthesize and evaluate pyrrolo-isoxazole benzoic acid derivatives as potential acetylcholinesterase (AChE) inhibitors for the management of Alzheimer's disease. The synthesis of pyrrolo-isoxazole benzoic acid derivatives involved ring opening cyclization of p-aminobenzoic acid with maleic anhydride to yield maleanilic acid, which in turn afforded N-arylmaleimide via ring closed cyclization. Azomethine-N-oxides were obtained by condensation of N-arylhydroxylamine with differently substituted benzaldehydes followed by refluxing of N-arylmaleimide with differently substituted azomethine-N-oxides to pyrrolo-isoxazole benzoic acid derivatives as cis- and trans-stereoisomers. The synthesized compounds were evaluated in vitro for AChE inhibitory activity in rat brain homogenate with donepezil as standard AChE inhibitor. Thereafter, the most potent test compound was evaluated for in vitro butyrylcholinesterase inhibitory activity and in vivo memory evaluation in scopolamine (0.4 mg/kg)-induced amnesia in mice by employing Morris water maze test. All pyrrolo-isoxazole benzoic acid derivatives demonstrated potent AChE inhibitory activity. Most of compounds exhibited similar activity to donepezil and four of them (7h, 7i, 8i, and 8h, IC50 = 19.1 +/- 3 1.9-17.5 +/- 1.5 nM) displayed higher inhibitory activity as compared to donepezil (21.5 +/- 3.2 nM) with compound 8ia (IC50 = 17.5 +/- 1.5 nM) being the most active one. The test compound 8ia also ameliorated scopolamine-induced amnesia in mice in terms of restoration of time spent in target quadrant (TSTQ) and escape latency time (ELT). It may be concluded that pyrrolo-isoxazole benzoic acid derivatives may be employed as potential AChE inhibitors. (C) 2011 Published by Elsevier Ltd.

  DOI：

  10.1016/j.bmc.2011.05.027

文献信息

• Catalytic Asymmetric 1,3‐Dipolar Cycloaddition of β‐Fluoroalkylated α,β‐Unsaturated 2‐Pyridylsulfones with Nitrones for Chiral Fluoroalkylated Isoxazolidines and γ‐Amino Alcohols
  作者：Xing Yang、Feng Cheng、Ying‐Da Kou、Shuai Pang、Yong‐Cun Shen、Yi‐Yong Huang、Norio Shibata

  DOI：10.1002/anie.201610605

  日期：2017.2

  across various aromatic and aliphatic nitrones in the presence of a chiral NiII/bis(oxazoline) catalyst. The process was tuned by 4 Å molecular sieves, chiral bis(oxazoline) ligands, reaction solvents, and temperature. A wide array of optically pure fluoroalkylated isoxazolidines were obtained, thus facilitating the asymmetric synthesis of an enantioenriched α‐trifluoromethylated γ‐amino alcohol in gram‐scale

  在手性Ni II的存在下，2-吡啶基砜和氟烷基化的基团活化的烯烃在各种芳族和脂肪族硝基上进行了高效的非对映和对映选择性的1,3-偶极环加成反应/双（恶唑啉）催化剂。该过程通过4Å分子筛，手性双（恶唑啉）配体，反应溶剂和温度进行调节。获得了大量光学上纯的氟代烷基化的异恶唑烷，从而促进了对映体富集的对映体富集的克级α-三氟甲基化γ-氨基醇和1,3-氧杂恶嗪-2-酮的三氟甲基化衍生物的合成，具有潜在的药用价值。根据一种加合物的绝对构型和一些对照实验，建立了立体化学模型，以解释观察到的内选择性和对映选择性。
• Conversion of nitrosobenzenes to isoxazolidines: an efficient cascade process utilizing reactive nitrone intermediates
  作者：Jun Yong Kang、Alejandro Bugarin、Brian T. Connell

  DOI：10.1039/b806374e

  日期：——

  Reactive nitrones can be generated directly in situ by an unusual reaction of nitrosobenzene with styrene.

  反应性氮烯可以通过亚硝基苯与苯乙烯的不寻常反应在原位直接生成。
• Synthesis of 2,3-Disubstituted <i>NH</i> Indoles via Rhodium(III)-Catalyzed C–H Activation of Arylnitrones and Coupling with Diazo Compounds
  作者：Xin Guo、Jianwei Han、Yafeng Liu、Mingda Qin、Xueguo Zhang、Baohua Chen

  DOI：10.1021/acs.joc.7b02105

  日期：2017.11.3

  arylnitrones and diazo compounds by C–H activation/[4 + 1] annulation with a C(N2)–C(acyl) bond cleavage is reported, and 2,3-disubstituted NH indoles are directly synthesized in up to a 94% yield. A variety of functional groups are applicable to this reaction to give the corresponding products with high selectivity. Compared to other previously reported Rh(III)-catalyzed synthesis of homologous series, this method

  据报道，铑通过C–H活化/ [4 +1]环解和C（N 2）–C（酰基）键裂解而在芳基硝基化合物和重氮化合物之间进行了分子间偶联，并且2,3-二取代的NH吲哚是直接的合成率高达94％。多种官能团可用于该反应，以产生具有高选择性的相应产物。与其他先前报道的Rh（III）催化的同源系列合成相比，该方法更简单，更通用，更有效。
• Rhodium(II)- and Copper(II)-Catalyzed Reactions of Enol Diazoacetates with Nitrones: Metal Carbene versus Lewis Acid Directed Pathways
  作者：Yu Qian、Xinfang Xu、Xiaochen Wang、Peter J. Zavalij、Wenhao Hu、Michael P. Doyle

  DOI：10.1002/anie.201202525

  日期：2012.6.11

  A complimentary cat.: Copper(II) hexafluoroantimonate catalyzes the formal [3+3] cycloaddition of Lewis acid activated nitrones and vinyl diazoacetates to produce 3,6‐dihydro‐1,2‐oxazines in yields of up to 96 % and diastereoselectivities greater than 25:1 (see scheme). This process compliments the metal carbene pathway that is catalyzed by rhodium(II) species.

  一只免费的猫。：六氟锑酸铜（II）催化路易斯酸活化的硝酮和乙烯基重氮乙酸酯的正式[3 + 3]环加成反应，生成3,6-二氢-1,2-恶嗪，收率高达96％，非对映选择性大于25：1 （请参阅方案）。此过程补充了铑（II）物种催化的金属卡宾途径。
• <scp>Ming‐Phos</scp>/Gold(I)‐Catalyzed Stereodivergent Synthesis of Highly Substituted Furo[3,4‐<i>d</i>][1,2]oxazines^†
  作者：Lujia Zhou、Bing Xu、Danting Ji、Zhan‐Ming Zhang、Junliang Zhang

  DOI：10.1002/cjoc.202000034

  日期：2020.6

  A gold(I)‐catalyzed asymmetric intermolecular tandem [3+3]‐cyclization reaction of 2‐(1‐alkynyl)‐2‐ alken‐1‐ones with nitrones has been developed by using Ming‐Phos as a chiral ligand. This method enables access to the stereodivergent synthesis of highly substituted furo[3,4‐d][1,2]oxazines in excellent efficiency and stereoselectivity (up to 99% yield, 99% ee, >20 : 1 dr).

  通过使用Ming-Phos作为手性配体开发了金（I）催化的2-（1-炔基）-2-链烯-1-酮与硝酮的不对称分子间串联[3 + 3]环化反应。该方法能够以优异的效率和立体选择性（高达99％的收率，99％ee，> 20：1 dr）获得高度取代的呋喃[3,4- d ] [1,2]恶嗪的立体发散性合成。