1-苄基-3-甲基哌啶-2-酮 | 37672-46-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 哌啶类
• 中文名称: 1-苄基-3-甲基哌啶-2-酮
• 英文名称: 1-benzyl-3-methylpiperidin-2-one
• 英文别名: 3-methyl-1-(phenylmethyl)-2-piperidinone；2-Piperidinone, 3-methyl-1-(phenylmethyl)-
• CAS: 37672-46-1
• 化学式: C₁₃H₁₇NO
• 分子量: 203.284
• InChiKey: XNCQKVGNUJGIDK-UHFFFAOYSA-N

物化性质

• 沸点：
  360.2±21.0 °C(Predicted)
• 密度：
  1.057±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.46
• 拓扑面积：
  20.3
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  1-苄基-3-甲基哌啶-2-酮 在 sodium hydroxide 、 正丁基锂 、 臭氧 作用下， 以 甲醇 为溶剂， 反应 16.0h， 生成 N-benzyl-3-(carbomethoxymethyl)-3-methyl-2-piperidinone
  参考文献：
  名称：

  A Novel Cycloaddition Reaction of α-Diazo-γ-amido Ketones Catalyzed by Rhodium(II) Acetate. Scope and Mechanistic Details of the Process

  摘要：

  alpha-Diazo ketones containing an amido group in the gamma-position have been found to undergo a novel rhodium(II)-catalyzed cycloaddition reaction. Intramolecular cyclization of the keto carbenoid onto the oxygen atom of the amide group generates a carbonyl ylide dipole as a transient species. This highly stabilized dipole does not readily undergo 1,3-dipolar cycloaddition but rather transfers a proton to produce a cyclic ketene N,O-acetal. The ketene acetal is unstable to moisture and upon standing is readily hydrolyzed to a gamma-keto delta-lactone and an amine. In the absence of any significant amount of water, the ketene N,O-acetal undergoes conjugate addition with the activated st-bond of the dipolarophile to give a zwitterion intermediate. The anionic portion of the zwitterion adds to the neighboring carbonyl group. This is followed by epoxide ring formation with charge dissipation leading to an amido-substituted spiro cyclopentyl epoxide. In certain cases a hydroxy lactone was also isolated and its formation can be attributed to the competitive hydrolysis of the zwitterionic intermediate. The Rh(II)-catalyzed reaction of the diazo ketoamide derived from N-benzylpiperidone with DMAD afforded two different types of cycloadducts. In addition to the spiro cyclopentyl epoxide, a product derived from trapping of the carbonyl ylide dipole was also obtained, thereby providing additional support for the proposed mechanism.

  DOI：

  10.1021/jo952078h
• 作为产物：
  描述：

  4-溴-戊-4-烯酸 在 platinum(IV) oxide 、 palladium diacetate sodium tetrahydroborate 、 三正丁胺 、 氢气 、 溶剂黄146 、 三乙胺 、 三苯基膦 作用下， 以 四氢呋喃 、 六甲基磷酰三胺 、 乙醇 为溶剂， 反应 9.25h， 生成 1-苄基-3-甲基哌啶-2-酮
  参考文献：
  名称：

  Palladium-catalyzed carbonylation. A new synthesis of .alpha.-methylene .gamma.-, .delta.-, .epsilon.-lactams and lactones including bicyclic lactams of pyrrolizidine and indolizidine skeletons

  摘要：

  DOI：

  10.1021/jo00170a037

文献信息

• Palladium-Catalyzed Hydrocarbonylative C–N Coupling of Alkenes with Amides
  作者：Xibing Zhou、Guoying Zhang、Bao Gao、Hanmin Huang

  DOI：10.1021/acs.orglett.8b00538

  日期：2018.4.20

  An efficient palladium-catalyzed hydrocarbonylative C–N coupling of alkenes with amides has been developed. The reaction was performed via hydrocarbonylation of alkenes, followed by acyl metathesis with amides. Both intermolecular and intramolecular reactions proceed smoothly to give either branched or linear amides in high turnover number (3500) with NH4Cl or NMP·HCl as a proton source under the palladium

  已经开发了一种有效的钯催化烯烃与酰胺的烷化C–N偶联反应。该反应通过烯烃的羰基化，然后用酰胺进行酰基复分解来进行。分子间和分子内反应均能顺利进行，在钯催化下，以NH 4 Cl或NMP·HCl为质子源，可以得到高周转数（3500）的支链或直链酰胺。当廉价的NMP·DCl用作氘源时，该反应为催化氘代酰胺提供了一种方便的催化方法。
• Photochemical generation of acyl and carbamoyl radicals using a nucleophilic organic catalyst: applications and mechanism thereof
  作者：Eduardo de Pedro Beato、Daniele Mazzarella、Matteo Balletti、Paolo Melchiorre

  DOI：10.1039/d0sc02313b

  日期：——

  detail a strategy that uses a commercially available nucleophilic organic catalyst to generate acyl and carbamoyl radicals upon activation of the corresponding chlorides and anhydrides via a nucleophilic acyl substitution path. The resulting nucleophilic radicals are then intercepted by a variety of electron-poor olefins in a Giese-type addition process. The chemistry requires low-energy photons (blue

  我们详细介绍了一种策略，该策略使用相应的氯化物和酸酐通过激活后，使用市售的亲核有机催化剂来生成酰基和氨基甲酰基基团。亲核酰基取代路径。然后，在Giese型加成过程中，所得的亲核基团被各种贫电子烯烃截获。化学过程需要低能光子（蓝色LED）来激活酰基和氨基甲酰基自由基前体，由于它们的高还原电位，因此不容易基于氧化还原的激活机制。为了阐明这种催化光化学自由基产生策略的关键机理，我们结合了瞬态吸收光谱研究，电化学研究，量子产率测量和关键中间体的表征。我们确定了各种非循环中间体，它们与反应性自由基进行光调节平衡。
• CARBAZOLE-CONTAINING AMIDES, CARBAMATES, AND UREAS AS CRYPTOCHROME MODULATORS
  申请人：ReSet Therapeutics, Inc.

  公开号：US20150284362A1

  公开（公告）日：2015-10-08

  The subject matter herein is directed to carbazole-containing amide, carbamate, and urea derivatives and pharmaceutically acceptable salts or hydrates thereof of structural formula I wherein the variable R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , A, D, E, G, J, L, M, Q, a, and b are accordingly described. Also provided are pharmaceutical compositions containing the compounds of formula I to treat a Cry-mediated disease or disorder, such as diabetes, complications associated with diabetes, Cushing's syndrome, NASH, NAFLD, asthma, and COPD.

  本文涉及含有咔唑基的酰胺、碳酸酯和脲衍生物，以及其结构式I中的药用可接受盐或水合物，其中变量R1、R2、R3、R4、R5、R6、R7、A、D、E、G、J、L、M、Q、a和b分别描述。还提供了含有式I化合物的药物组合物，用于治疗Cry介导的疾病或紊乱，如糖尿病、与糖尿病相关的并发症、库欣综合征、NASH、NAFLD、哮喘和COPD。
• Azolyl-cyclic amine derivates with immunomodulatory activity
  申请人：Knoll Aktiengesellachaft

  公开号：US05741800A1

  公开（公告）日：1998-04-21

  A compound of the formula (I), ##STR1## as defined in the specification, having immunomodulatory activity, or a pharmaceutically acceptable salt thereof, pharmaceutical compositions comprising the compound, and processes to make and to use the compound are described.

  本文描述了一种具有免疫调节活性的化合物，其化学式为（I），如规范中定义的，或其药学上可接受的盐，包括含有该化合物的药物组合物，以及制备和使用该化合物的过程。
• Conformational effects on the regiochemical metalation of C5-C13 N-benzyllactams
  作者：A. I. Meyers、Kevin B. Kunnen、W. Clark Still

  DOI：10.1021/ja00248a052

  日期：1987.7

  La lithiation se fait soit sur le carbone en α du carbonyle, soit sur le carbone benzylique en α de l'azote, selon la taille du cycle

  La lithiation se fait soit sur le carbone en α du carbonyle, soit sur le carbone benzylique en α de l'azote, selon la taille du cycle