(E)-4-(pyridin-4-yl)but-3-en-2-one | 94445-75-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: (E)-4-(pyridin-4-yl)but-3-en-2-one
• 英文别名: 4-(pyridin-4-yl)-3-buten-2-one；4-(4-Pyridinyl)-3-buten-2-one；(E)-4-pyridin-4-ylbut-3-en-2-one
• CAS: 94445-75-7
• 化学式: C₉H₉NO
• 分子量: 147.177
• InChiKey: JCTPLVWHJQUYBY-NSCUHMNNSA-N

物化性质

• 熔点：
  56-57 °C
• 沸点：
  125 °C(Press: 2 Torr)
• 密度：
  1.072±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  11
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  30
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (E)-4-(pyridin-4-yl)but-3-en-2-one 在 sodium hydroxide 、 硫酸 、 sodium ethanolate 、 sodium hydride 作用下， 以 乙醇 为溶剂， 反应 14.5h， 生成 7-Chloro-1-[(E)-3-dimethylamino-propylimino]-3-pyridin-4-yl-1,3,4,10-tetrahydro-2H-acridin-9-one
  参考文献：
  名称：

  Antimalarial drugs. 64. Synthesis and antimalarial properties of 1-imino derivatives of 7-chloro-3-substituted-3,4-dihydro-1,9(2H,10H)-acridinediones and related structures

  摘要：

  To improve upon the activity and properties of the 3-aryl-7-chloro-3,4-dihydro-1,9(2H,10H)-acridinediones, a variety of 1-[(alkylamino)alkylene]imino derivatives (3) were prepared and shown to be highly active antimalarial agents in both rodents and primates. Among structural modifications prepared, including N-10-alkyl and C2-substituted analogs, removal of the C-9 oxygen, and introduction of an imino side chain at C-9, the imines of the N-10-H acridinediones were the most active compounds obtained. The [3-(NN-dimethylamino)propyl]imino derivative of 7-chloro-3-(2,4-dichlorophenyl)-3,4-dihydro-1,9(2H,10H)-acridinedione (9aa) proved to be highly active in advanced studies in primates.

  DOI：

  10.1021/jm00097a001
• 作为产物：
  描述：

  ethyl 2-(4-pyridylmethylene)acetoacetate 在 盐酸 、 水 作用下， 生成 (E)-4-(pyridin-4-yl)but-3-en-2-one
  参考文献：
  名称：

  Preparation of the Pyridalacetones and the Inductive Effect of Nitrogen on the Dehydration of the Intermediate Aldols^*1

  摘要：

  DOI：

  10.1021/jo01362a037

文献信息

• Ruthenium-Catalyzed Oxidative Formal Aza-Diels-Alder Reaction: Enantioselective Synthesis of Benzo[<i>a</i> ]quinolizine-2-ones
  作者：Yuan Yao、Hai-Jie Zhu、Fang Li、Cheng-Feng Zhu、Yun-Fei Luo、Xiang Wu、Eric Assen B. Kantchev

  DOI：10.1002/adsc.201700738

  日期：2017.9.18

  11bS)‐benzo[a]quinolizine‐2‐one derivatives in good enantio‐ and diastereoselectivity by a one‐pot oxidative formal aza‐Diels–Alder reaction of 1,2,3,4‐tetrahydroisoquinolines and α,β‐unsaturated ketones is described. The reaction proceeds via tandem ruthenium‐catalyzed amine dehydrogenation using tert‐butyl hydroperoxide (TBHP) as the oxidant and a chiral thiourea‐catalyzed formal aza‐[4+2] cycloaddition, providing

  一种通过一锅氧化1,2,3的形式正式氮杂-Diels-Alder反应制备具有良好对映异构和非对映选择性的热力学（4 R，11b S）-苯并[ a ]喹诺嗪-2-酮衍生物的方法描述了，4-四氢异喹啉和α，β-不饱和酮。该反应通过叔丁基氢过氧化物（TBHP）作为氧化剂和手性硫脲催化的正式氮杂[4 + 2]环加成反应，通过串联钌催化的胺脱氢而进行，为合成这些有价值的杂环化合物提供了分步经济的策略产品。
• Rate Dependence on Inductive and Resonance Effects for the Organocatalyzed Enantioselective Conjugate Addition of Alkenyl and Alkynyl Boronic Acids to β-Indolyl Enones and β-Pyrrolyl Enones
  作者：Amy Boylan、Thien S. Nguyen、Brian J. Lundy、Jian-Yuan Li、Ravikrishna Vallakati、Sasha Sundstrom、Jeremy A. May

  DOI：10.3390/molecules26061615

  日期：——

  Two key factors bear on reaction rates for the conjugate addition of alkenyl boronic acids to heteroaryl-appended enones: the proximity of inductively electron-withdrawing heteroatoms to the site of bond formation and the resonance contribution of available heteroatom lone pairs to stabilize the developing positive charge at the enone β-position. For the former, the closer the heteroatom is to the

  影响烯基硼酸与杂芳基连接的烯酮共轭加成反应速率的两个关键因素：感应吸电子杂原子与成键位点的接近度以及可用杂原子孤对对稳定产生的正电荷的共振贡献在烯酮β-位。对于前者，杂原子距离烯酮β-碳越近，反应越快。对于后者，苄基阳离子电荷的共振稳定性更强，可加速反应。因此，反应速率通过感应吸电子元件的更接近而增加，但如果涉及共振效应，则观察到具有给电子能力的速率增加。提出了异构底物这些趋势的证据，并且这些见解的应用允许反应条件改善与以前有问题的底物的反应性。
• An efficient, asymmetric organocatalyst-mediated conjugate addition of nitroalkanes to unsaturated cyclic and acyclic ketones
  作者：Claire E. T. Mitchell、Stacey E. Brenner、Jorge García-Fortanet、Steven V. Ley

  DOI：10.1039/b601877g

  日期：——

  5-Pyrrolidin-2-yltetrazole is a versatile organocatalyst for the asymmetric conjugate addition of nitroalkanes to enones. Using this catalyst, this transformation requires short reaction times, tolerates a broad substrate scope, and possibly proceeds via generation of an iminium species.

  5-吡咯烷-2-基四唑是一种通用的有机催化剂，用于将硝基烷烃不对称地加成成烯酮。使用这种催化剂，这种转化需要较短的反应时间，可以耐受广泛的底物范围，并且可能通过生成亚胺鎓类物质进行。
• A General Method for the Enantioselective Synthesis of α-Chiral Heterocycles
  作者：Phong Q. Le、Thien S. Nguyen、Jeremy A. May

  DOI：10.1021/ol3030605

  日期：2012.12.7

  The enantioselective formation of stereocenters proximal to unprotected heterocycles has been accomplished. Thus, vinyl boronic acids are added to heterocycle-appended enones via a modified-BINOL catalyst. Catalyst design was key to enable a general reaction. High yields and useful er’s are observed for a host of common heteroaryls.

  已经完成了在未保护的杂环附近的立体中心的对映选择性形成。因此，经由改性的BINOL催化剂将乙烯基硼酸加入到杂环加成的烯酮中。催化剂设计是实现一般反应的关键。对于许多常见的杂芳基，观察到高收率和有用的er。
• BENZAZEPIN-2(1H)-ONE DERIVATIVES
  申请人：Boyle Jessica

  公开号：US20080103130A1

  公开（公告）日：2008-05-01

  Compounds of formula (I) and pharmaceutically acceptable salts thereof are agonists at the beta-2 adrenoceptor. They are useful as feed additives for livestock animals.

  式(I)的化合物及其药用可接受的盐是β-2肾上腺素受体的激动剂。它们可用作家畜动物的饲料添加剂。