(6-methylpyridin-2-yl)(p-tolyl)methanone | 1164200-12-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (6-methylpyridin-2-yl)(p-tolyl)methanone
• 英文别名: 2-(4-Methylbenzoyl)-6-methylpyridine；(4-methylphenyl)-(6-methylpyridin-2-yl)methanone
• CAS: 1164200-12-7
• 化学式: C₁₄H₁₃NO
• 分子量: 211.263
• InChiKey: LZSUPUPGIBLKCR-UHFFFAOYSA-N

物化性质

• 熔点：
  62-64 °C
• 沸点：
  367.8±30.0 °C(Predicted)
• 密度：
  1.092±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  30
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2,4-dimethyl-3-((6-methylpyridin-2-yl)methyl)pentan-3-ol 在 palladium(II) trifluoroacetate 、 苯基溴化硒 、 氧气 、 caesium carbonate 、 溶剂黄146 、 三环己基膦 作用下， 以 邻二甲苯 、 水 、 二甲基亚砜 为溶剂， 反应 28.0h， 生成 (6-methylpyridin-2-yl)(p-tolyl)methanone
  参考文献：
  名称：

  硒催化分子氧对硒催化的C（sp3）-H的高效氧化

  摘要：

  通过使用分子氧作为氧化剂，成功开发了一种有效的硒催化的DMSO水溶液中苄基吡啶的直接氧化方法。获得了各种具有宽泛的官能团耐受性的苯甲酰基吡啶，其收率适中至优异，并且具有独特的化学选择性。

  DOI：

  10.1002/adsc.201601065

文献信息

• Synthesis of Aryl(di)azinyl Ketones through Copper- and Iron-catalyzed Oxidation of the Methylene Group of Aryl(di)azinylmethanes
  作者：Johan De Houwer、Kourosch Abbaspour Tehrani、Bert U. W. Maes

  DOI：10.1002/anie.201108540

  日期：2012.3.12

  Sustainable Oxidations: An oxidation method to transform aryl(di)azinylmethanes into aryl(di)azinyl ketones is described. Base metals (copper and iron) as catalysts in combination with O2 as the oxidant are used, which makes this method sustainable. The utility of this method is illustrated by the synthesis of 6‐(4‐methylbenzoyl)pyridine‐2‐carbaldehyde, which is an intermediate in the preparation of

  可持续的氧化：描述了一种将芳基（二）叠氮基甲烷转化为芳基（二）叠氮基酮的氧化方法。使用贱金属（铜和铁）作为催化剂，并结合使用O 2作为氧化剂，这使该方法具有可持续性。该方法的实用性通过6-（4-甲基苯甲酰基）吡啶-2-甲醛的合成来说明，该中间体是制备药物卡维他汀的中间体。
• Base metal-catalyzed benzylic oxidation of (aryl)(heteroaryl)methanes with molecular oxygen
  作者：Hans Sterckx、Johan De Houwer、Carl Mensch、Wouter Herrebout、Kourosch Abbaspour Tehrani、Bert U W Maes

  DOI：10.3762/bjoc.12.16

  日期：——

  The methylene group of various substituted 2- and 4-benzylpyridines, benzyldiazines and benzyl(iso)quinolines was successfully oxidized to the corresponding benzylic ketones using a copper or iron catalyst and molecular oxygen as the stoichiometric oxidant. Application of the protocol in API synthesis is exemplified by the alternative synthesis of a precursor to the antimalarial drug Mefloquine. The oxidation method can also be used to prepare metabolites of APIs which is illustrated for the natural product papaverine. ICP–MS analysis of the purified reaction products revealed that the base metal impurity was well below the regulatory limit.

  各种取代的2-和4-苄基吡啶、苄基二嗪和苄基(异)喹啉的亚甲基基团成功地被氧化为相应的苄基酮，使用铜或铁催化剂和分子氧作为化学计量氧化剂。该方案在API合成中的应用以替代合成抗疟药物美氟喹的前体为例。这种氧化方法还可用于制备API的代谢产物，以天然产物樟碱为例进行说明。对纯化的反应产物进行ICP-MS分析显示，基础金属杂质远低于监管限值。
• Copper-Catalyzed Aerobic Oxygenation of Benzylpyridine<i>N</i>-Oxides and Subsequent Post-Functionalization
  作者：Hans Sterckx、Carlo Sambiagio、Vincent Médran-Navarrete、Bert U. W. Maes

  DOI：10.1002/adsc.201700588

  日期：2017.9.18

  A copper‐catalyzed aerobic oxidation of benzylpyridine N‐oxides is reported. The N‐oxide moiety acts as a built‐in activator for the benzylic methylene oxidation, without requirement of additives. Reaction conditions were identified which suppress undesired benzoylpyridine formation via N‐deoxygenation involving intermolecular oxygen transfer. The versatility of the N‐oxide group of the benzoylpyridine

  据报道，铜催化的苄基吡啶N-氧化物有氧氧化。所述Ñ氧化物部分作为一个内置的活化剂为亚甲基苄氧化，不含添加剂的要求。确定了可通过涉及分子间氧转移的N-脱氧反应抑制不希望的苯甲酰基吡啶形成的反应条件。苯甲酰基吡啶N的N-氧化物基团的多功能性通过亲核试剂和亲电试剂的高效C–C，C–N，C–O和C–Cl键形成程序，证明了吡啶环后功能化的氧化反应产物。最后，新的合成方法的适用性是通过从甲基吡啶N-氧化物开始的三个连续的N-氧化物激活的CH-H功能化过程，向抗组胺药物Acrivastine的另一种途径证明的。
• Preferential Reactivity of Pyridylmagnesiumchloride with N,N-Dialkyl Arylamides over Carbonitriles: Synthesis of 2-(Aroyl) Pyridines
  作者：G. Venkateswara Rao、B. Narayana Swamy、P. Hareesh Kumar、G. Chandrasekara Reddy

  DOI：10.1080/00397910802594284

  日期：2009.4.22

  Reaction of 2-pyridylmagnesium chlorides with N,N-dialkyl arylamides afford exclusively 2-(aroyl) pyridines in high yields and purity without the formation of any tertiary alcohol. This method employs easily available raw materials and avoids the use of hazardous lithium reagents and cryogenic conditions. Further, preferential reactivity of this Grignard reagent with N,N-dialkyl arylamides over its carbonitrile counterparts offers a variety of 2-(aroyl) pyridines including the ones containing carbonitrile groups on the aryl ring.
• Efficient Selenium-Catalyzed Selective C(sp³)−H Oxidation of Benzylpyridines with Molecular Oxygen
  作者：Weiwei Jin、Poonnapa Zheng、Wing-Tak Wong、Ga-Lai Law

  DOI：10.1002/adsc.201601065

  日期：2017.5.2

  An efficient selenium‐catalyzed direct oxidation of benzylpyridines in aqueous DMSO has been successfully developed by using molecular oxygen as the oxidant. A variety of benzoylpyridines with broad functional group tolerance were obtained in modest to excellent yields and with exclusive chemoselectivity.

  通过使用分子氧作为氧化剂，成功开发了一种有效的硒催化的DMSO水溶液中苄基吡啶的直接氧化方法。获得了各种具有宽泛的官能团耐受性的苯甲酰基吡啶，其收率适中至优异，并且具有独特的化学选择性。