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(R)-5-acetyl-6-methyl-4-(p-tolyl)-3,4-dihydro-2H-pyran-2-one | 1443156-88-4

中文名称
——
中文别名
——
英文名称
(R)-5-acetyl-6-methyl-4-(p-tolyl)-3,4-dihydro-2H-pyran-2-one
英文别名
(4R)-5-acetyl-6-methyl-4-(4-methylphenyl)-3,4-dihydropyran-2-one
(R)-5-acetyl-6-methyl-4-(p-tolyl)-3,4-dihydro-2H-pyran-2-one化学式
CAS
1443156-88-4
化学式
C15H16O3
mdl
——
分子量
244.29
InChiKey
YYZMUHMXIGPIKH-CYBMUJFWSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    2.1
  • 重原子数:
    18
  • 可旋转键数:
    2
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.33
  • 拓扑面积:
    43.4
  • 氢给体数:
    0
  • 氢受体数:
    3

反应信息

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文献信息

  • Direct β-Activation of Saturated Aldehydes to Formal Michael Acceptors through Oxidative NHC Catalysis
    作者:Junming Mo、Liang Shen、Yonggui Robin Chi
    DOI:10.1002/anie.201302152
    日期:2013.8.12
    mediated by N‐heterocyclic carbenes (NHCs) enables the direct β‐carbon functionalization of saturated aldehydes (see scheme). The reaction proceeds through two sequential oxidative steps to generate α,β‐unsaturated triazolium ester equivalents as formal Michael acceptors, which react with 1,3‐diketones and β‐ketone esters in an enantioselective manner.
    不走弯路:由N-杂环卡宾(NHC)介导的氧化催化作用可实现饱和醛的直接β-碳官能化(请参阅方案)。该反应通过两个连续的氧化步骤进行,以生成α,β-不饱和三唑鎓酯当量形式的Michael受体,它们与1,3-二酮和β-酮​​酯以对映选择性的方式反应。
  • Enantioselective <i>N</i>-Heterocyclic Carbene Catalysis via Acyl Azolium without Exogenous Oxidants
    作者:Jing Cao、Rachel Gillard、Azar Jahanbakhsh、Martin Breugst、David W. Lupton
    DOI:10.1021/acscatal.0c02705
    日期:2020.10.16
    An approach to the α,β-unsaturated acyl azolium has been developed that exploits N-heterocyclic carbenes (NHCs) and acyl fluorides, without additional oxidants, bases, or preactivated pro-nucleophiles. These conditions have been applied in four classes of NHC-catalyzed reaction. In all cases, the expected products were produced with high yield and enantioselectivity, using two sets of closely related
    已经开发出一种α,β-不饱和酰基偶氮的方法,该方法利用了N-杂环卡宾(NHC)和酰基氟,而无需使用其他氧化剂,碱或预活化的亲核试剂。这些条件已应用于四类NHC催化的反应中。在所有情况下,使用两组紧密相关的反应条件无需额外优化即可生产出预期的产物,具有高收率和对映选择性。
  • Enantioselective Synthesis of 3,4-Dihydropyran-2-ones via Phase-Transfer-Catalyzed Addition–Cyclization of Acetylacetone to Cinnamic Thioesters
    作者:Dario Destro、Carlo Bottinelli、Ludovica Ferrari、Domenico C. M. Albanese、Grazia Bencivenni、Malachi W. Gillick-Healy、Brian G. Kelly、Mauro F. A. Adamo
    DOI:10.1021/acs.joc.9b03216
    日期:2020.4.17
    Herein, we present the first example of synthesis of 3,4-dihydropyran-2-ones from cinnamic thioesters via a stereoselective phase-transfer-catalyzed domino Michael-cyclization reaction with acetylacetone. The reaction proceeded under the catalysis of Cinchona-derived quaternary ammonium phenoxide that, in combination with inorganic bases, provided 3,4-dihydropyran-2-ones in yields of up to 93% and enantioselectivities of up to 88% enantiomeric excess.
  • Divergent NHC-Catalyzed Oxidative Transformations of 3-Bromoenal: Selective Synthesis of 2<i>H</i>-Pyran-2-ones and Chiral Dihydropyranones
    作者:Gang Wang、Xia Chen、Gaohan Miao、Weijun Yao、Cheng Ma
    DOI:10.1021/jo400950j
    日期:2013.6.21
    A selective synthesis of either 2H-pyran-2-ones (4) or chiral dihydropyranones (6) from the same substrates of 3-bromoenals and 1,3-dicarbonyl compounds upon oxidative N-heterocyclic carbene catalysis is presented. It is shown that the oxidative transformation of 3-bromoenals under NHC catalyst can be well controlled to proceed through two pathways, i.e., elimination of reducible β-bromide or by an
    提出了在氧化的N-杂环卡宾催化下,由3-溴烯醛和1,3-二羰基化合物的相同底物选择性合成2 H-吡喃-2-酮(4)或手性二氢吡喃酮(6)的方法。结果表明,可以很好地控制NHC催化剂下3-溴烯醛的氧化转化,通过两条途径进行,即消除可还原的β-溴化物或通过外部氧化剂3进行,从而选择性地产生两种不饱和酰基偶氮,分别。
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