1-(naphthalen-2-yl)pentane-1,4-dione | 123183-98-2

• 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: 1-(naphthalen-2-yl)pentane-1,4-dione
• 英文别名: 1-naphthalen-2-ylpentane-1,4-dione；1-(2-Naphthyl)-1,4-pentanedione；1,4-Pentanedione, 1-(2-naphthalenyl)-
• CAS: 123183-98-2
• 化学式: C₁₅H₁₄O₂
• mdl: MFCD01463604
• 分子量: 226.275
• InChiKey: LDLFCZYWHIIMJZ-UHFFFAOYSA-N

物化性质

• 熔点：
  82-84 °C
• 沸点：
  407.6±28.0 °C(Predicted)
• 密度：
  1.121±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-(naphthalen-2-yl)pentane-1,4-dione 在 盐酸 、 二异丁基氢化铝 、 对甲苯磺酸 作用下， 以 溶剂黄146 为溶剂， 反应 8.0h， 生成 (4R,6R)-4-Hydroxy-6-[2-(2-methyl-5-naphthalen-2-yl-pyrrol-1-yl)-ethyl]-tetrahydro-pyran-2-one
  参考文献：
  名称：

  Inhibitors of cholesterol biosynthesis. 1. trans-6-(2-Pyrrol-1-ylethyl)-4-hydroxypyran-2-ones, a novel series of HMG-CoA reductase inhibitors. 1. Effects of structural modifications at the 2- and 5-positions of the pyrrole nucleus

  摘要：

  A novel series of trans-6-(2-pyrrol-1-ylethyl)-4-hydroxypyran-2-ones and their dihydroxy acid derivatives were prepared and evaluated for their ability to inhibit the enzyme HMG-CoA reductase in vitro. A systematic study of substitution at the 2- and 5-positions of the pyrrole ring revealed that optimum potency was realized with the 2-(4-fluorophenyl)-5-isopropyl derivative 8x, which possessed 30% of the in vitro activity of the potent fungal metabolite compactin (I). A molecular modeling analysis led to the description of a pharmacophore model characterized by (A) length limits of 5.9 and 3.3 A for the 2- and 5-substituents, respectively, as well as an overall width limit of 10.6 A across the pyrrole ring from the 2- to the 5-substituent and (B) an orientation of the ethyl(ene) bridge to the 4-hydroxypyran-2-one ring nearly perpendicular to the planes of the parent pyrrole, hexahydronaphthalene, and phenyl rings of the structures examined (Figure 3, theta = 80-110 degrees). Attempts to more closely mimic compactin's polar isobutyric ester side chain with the synthesis of 2-phenylpyrroles containing polar phenyl substituents resulted in analogues with equal or slightly reduced potencies when compared to the 2-[(unsubstituted or 4-fluoro)phenyl]pyrroles, supporting the hypothesis that inhibitory potency is relatively insensitive to side-chain polarity or charge distribution in this area.

  DOI：

  10.1021/jm00163a005
• 作为产物：
  描述：

  2-溴代-2-乙酰基萘 生成 1-(naphthalen-2-yl)pentane-1,4-dione
  参考文献：
  名称：

  THERAPEUTIC AGENT FOR DIABETES

  摘要：

  用于治疗糖尿病的疗法剂，包括公式[I]的化合物 其中 X是公式的组 其中R4和R5相同或不同，每个都是氢原子，可选地取代的具有1至5个碳原子的烷基等等，R6是氢原子或氨基保护基团；R1是具有1至5个碳原子的可选取代烷基，具有2至6个碳原子的可选取代烯基等等，R2是氢原子，具有1至5个碳原子的可选取代烷基等等，R2'是氢原子，R3是具有1至5个碳原子的可选取代烷基等等，其前药，药用可接受盐，水合物和溶剂化物。 本发明的化合物在血糖升高状态下表现出优越的降血糖作用，但在正常范围或低血糖状态下不影响血糖，这意味着它没有低血糖等严重副作用。因此，本发明的化合物作为治疗糖尿病的药物很有用，也用作预防糖尿病慢性并发症。

  公开号：

  EP0885869A1

文献信息

• Nonclassical Mechanism in the Cyclodehydration of Diols Catalyzed by a Bifunctional Iridium Complex
  作者：Greco González Miera、Aitor Bermejo López、Elisa Martínez‐Castro、Per‐Ola Norrby、Belén Martín‐Matute

  DOI：10.1002/chem.201805460

  日期：2019.2.18

  1,4‐ and 1,5‐diols undergo cyclodehydration upon treatment with cationic N‐heterocyclic carbene (NHC)–IrIII complexes to give tetrahydrofurans and tetrahydropyrans, respectively. The mechanism was investigated, and a metal‐hydride‐driven pathway was proposed for all substrates, except for very electron‐rich ones. This contrasts with the well‐established classical pathways that involve nucleophilic

  1,4-和1,5-二醇在用阳离子N-杂环卡宾(NHC)-Ir III络合物处理后发生环化脱水，分别生成四氢呋喃和四氢吡喃。研究了该机制，并提出了一种适用于所有底物的金属氢化物驱动途径，除了电子非常丰富的底物。这与涉及亲核取代的成熟经典途径形成对比。
• Stereospecific Cross-Coupling Reactions of Aryl-Substituted Tetrahydrofurans, Tetrahydropyrans, and Lactones
  作者：Emily J. Tollefson、David D. Dawson、Charlotte A. Osborne、Elizabeth R. Jarvo

  DOI：10.1021/ja5076426

  日期：2014.10.22

  complex stereochemical arrays. Stereoselective synthesis of the cyclic template is utilized to control relative configuration; subsequent stereospecific nickel-catalyzed ring-opening affords the acyclic product. Aryl-substituted tetrahydrofurans and tetrahydropyrans undergo nickel-catalyzed Kumada-type coupling with a range of Grignard reagents to furnish acyclic alcohols with high diastereoselectivity

  据报道，O-杂环的立体有择性开环可提供无环醇和羧酸，并控制形成新的 C-C 键。这些反应为合成具有复杂立体化学阵列的无环聚酮化合物类似物提供了新方法。利用环状模板的立体选择性合成来控制相对构型；随后立体有择的镍催化开环得到无环产物。芳基取代的四氢呋喃和四氢吡喃与一系列格氏试剂进行镍催化的熊田型偶联，以提供具有高非对映选择性的无环醇。富含对映体的内酯与二甲基锌进行根岸型交叉偶联，得到富含对映体的羧酸。
• Plagiarizing Proteins: Enhancing Efficiency in Asymmetric Hydrogen-Bonding Catalysis through Positive Cooperativity
  作者：Christopher R. Jones、G. Dan Pantoş、Angus J. Morrison、Martin D. Smith

  DOI：10.1002/anie.200903063

  日期：2009.9.21

  A new twist for a fold: Conformationally well‐defined thiourea catalysts, like that shown, stabilized by intramolecular hydrogen bonds demonstrate cooperative ligand–receptor binding. This conformation leads to significantly enhanced catalytic efficiency, resulting in higher turnover rates and lower catalyst loading whilst maintaining high enantioselectivity in a model reaction.

  一个新的褶皱：构象明确的硫脲催化剂，如图所示，通过分子内氢键稳定，表现出配体-受体的协同作用。这种构象导致催化效率显着提高，从而导致更高的周转率和更低的催化剂负载量，同时在模型反应中保持了高对映选择性。
• Difluoroboroxymolybdenum Fischer Carbene Complexes as Precursors of Acyl Radicals: Dimerization and Trapping with Electron-Deficient Alkenes
  作者：José Barluenga、Félix Rodríguez、Francisco J. Fañanás

  DOI：10.1002/1521-3765(20000602)6:11<1930::aid-chem1930>3.0.co;2-8

  日期：2000.6.2

  complexes 2, which undergo loss of the metal fragment at room temperature to form 1,2-diketones 3, 1,2-hydroxy ketones 4, or dimers 5 through a dimerization or decarbonylation-dimerization process of acyl radicals. Decomposition of 2 in the presence of electron-deficient alkenes 11 and 18 furnishes the two-, three-, and four-component coupling products 12, 13, 19, 20, and 21.

  五羰基酰基钼酸酯1与三氟化硼反应生成二氟硼氧基菲舍尔卡宾配合物2，该配合物在室温下会损失金属碎片，从而通过二聚反应或二聚反应形成1,2-二酮3、1,2-羟基酮4或二聚体5。酰基的脱羰二聚过程。在缺电子的烯烃11和18的存在下进行2的分解可提供二，三和四组分偶联产物12、13、19、20和21。
• Bicyclo[2.1.1]hexanes by Visible Light-Driven Intramolecular Crossed [2 + 2] Photocycloadditions
  作者：Thomas Rigotti、Thorsten Bach

  DOI：10.1021/acs.orglett.2c03606

  日期：2022.12.9

  increasingly popular building blocks in medicinal chemistry as bridged scaffolds that provide unexplored chemical space. We herein report a visible light-driven approach to these compounds that relies on an intramolecular crossed [2 + 2] photocycloaddition of styrene derivatives enabled by triplet energy transfer. Bicyclo[2.1.1]hexanes were obtained in good to high yields (19 examples, 61%-quantitative yield)

  双环 [2.1.1] 己烷已成为药物化学中越来越受欢迎的构件，作为提供未开发化学空间的桥接支架。我们在此报告了一种可见光驱动的方法来处理这些化合物，该方法依赖于通过三线态能量转移实现的苯乙烯衍生物的分子内交叉 [2 + 2] 光环加成。双环 [2.1.1] 己烷的收率从好到高（19 个例子，61% 的定量收率），并允许通过连续反应进一步功能化，从而打开不同的途径来修饰脂肪族核心结构。