1,2-二氢-2-甲基-3H-萘并[2,1-b]吡喃-3-酮 | 21315-43-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 萘并吡喃类
• 中文名称: 1,2-二氢-2-甲基-3H-萘并[2,1-b]吡喃-3-酮
• 英文名称: 1,2-dihydro-2-methyl-3H-naphtho[2,1-b]pyran-3-one
• 英文别名: 2-methyl-2,3-dihydro-1H-benzo[f]chroman-3-one；2-methyl-1,2-dihydro-benzo[f]chromen-3-one；2-Methyl-1,2-dihydro-benzo[f]chromen-3-one；2-methyl-1,2-dihydrobenzo[f]chromen-3-one
• CAS: 21315-43-5
• 化学式: C₁₄H₁₂O₂
• 分子量: 212.248
• InChiKey: SUHVASRTABOVSV-UHFFFAOYSA-N

物化性质

• 熔点：
  65-66 °C
• 沸点：
  382.7±17.0 °C(Predicted)
• 密度：
  1.192±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  16
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.21
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  1-bromonaphthalen-2-yl acetate 在 (N,N,N',N'-tetramethylethylenediamine)dimethylpalladium(II) 、 zinc(II) fluoride 、 2-(2-(dicyclohexylphosphino)-1H-imidazol-1-yl)-N,N-dimethylaniline 、 sodium hydroxide 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 反应 27.0h， 生成 1,2-二氢-2-甲基-3H-萘并[2,1-b]吡喃-3-酮
  参考文献：
  名称：

  钯催化的甲硅烷基乙缩醛的β-芳基化及其在苯并δ-内酯的合成中的应用

  摘要：

  在Pd催化的迁移性C（sp 3）–H芳基化反应中，甲硅烷基乙烯酮缩醛被证明是有效的亲核试剂。与母体酯烯醇锂相比，它们具有降低的反应性但增强的化学选择性。这种行为是通过合成有价值的苯并稠合的δ-内酯（例如1-isochromanones和dihydrocoumarins）来开发的。

  DOI：

  10.1021/ol402398s

文献信息

• Recyclable Selective Palladium-Catalyzed Synthesis of Five-, Six- or Seven-Membered Ring Lactones and Lactams by Cyclocarbonylation in Ionic Liquids
  作者：Fangguo Ye、Howard Alper

  DOI：10.1002/adsc.200606100

  日期：2006.9

  ionic liquids, BMIM PF6 or BMIM NTf2, are used successfully for the palladium-catalyzed cyclocarbonylation of 2-allylphenols and anilines, 2-vinylphenols, and 2-aminostyrenes. The reaction proceeds cleanly and efficiently to afford high yields of lactones or lactams with good or excellent selectivity for one isomer. The ionic liquid containing the palladium catalyst, and ligand, is recyclable in all cases

  离子液体BMIM PF 6或BMIM NTf 2已成功用于2-烯丙基苯酚和苯胺，2-乙烯基苯酚和2-氨基苯乙烯的钯催化环羰基化。反应干净，有效地进行，以高产率获得内酯或内酰胺，并且对一种异构体具有良好或优异的选择性。包含钯催化剂和配体的离子液体在所有情况下都是可回收的。
• Regioselective Palladium(II)-Catalyzed Synthesis of Five- or Seven-Membered Ring Lactones and Five-, Six- or Seven-Membered Ring Lactams by Cyclocarbonylation Methodology
  作者：Bassam El Ali、Kazumi Okuro、Giuseppe Vasapollo、Howard Alper

  DOI：10.1021/ja953403l

  日期：1996.1.1

  affording five- or seven-membered ring lactones (bicyclic, tricyclic, and pentacyclic) as the principal products, often in excellent yields. Use of 2-aminostyrenes as reactants and catalytic quantities of palladium acetate and tricyclohexylphosphine, affords five-membered ring lactams in high yield and selectivity. Bicyclic and tricyclic heterocycles containing six-membered ring lactams can be synthesized

  2-烯丙基苯酚在催化量的阳离子钯 (II) 络合物 [(PCy3)2Pd(H)(H2O)]+BF4- 或乙酸钯和 1,4-双(二苯基膦) 存在下与一氧化碳和氢气反应丁烷，提供五元或七元环内酯（双环、三环和五环）作为主要产物，通常收率极好。使用 2-氨基苯乙烯作为反应物和催化量的乙酸钯和三环己基膦，以高产率和选择性提供五元环内酰胺。使用催化体系 Pd(OAc)2/PPh3，2-烯丙胺与 CO/H2 反应可以合成含有六元环内酰胺的双环和三环杂环，同时使用 1, 4-双（二苯基膦基）丁烷在后一过程中代替 PPh3 导致以良好的产率形成七元内酰胺苯并氮杂酮。区域化学控制取决于钯催化剂的性质、气体的相对压力和溶剂。
• PdI₂-Catalyzed Regioselective Cyclocarbonylation of 2-Allyl Phenols to Dihydrocoumarins
  作者：Manuel Amézquita-Valencia、Howard Alper

  DOI：10.1021/ol5029157

  日期：2014.11.21

  A simple, efficient, and regioselective synthesis of 3-methyl-3,4-dihydrocoumarins is reported. The reaction of 2-allyl phenols with synthesis gas was catalyzed by PdI2, and 1,3,5,7-tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane (L1) and 1,3,5,7-tetramethyl-6-tetradecyl-2,4,8-trioxa-6-phosphaadamantane (L2) were effective as ligands, affording good product selectivity in all cases.
• Condensation of monosubstituted isopropylidene malonates with Mannich bases
  作者：Robert T. Jacobs、Allen D. Wright、Francis X. Smith

  DOI：10.1021/jo00140a038

  日期：1982.9
• Inhibitors of Sir2:  Evaluation of Splitomicin Analogues
  作者：Jeff Posakony、Maki Hirao、Sam Stevens、Julian A. Simon、Antonio Bedalov

  DOI：10.1021/jm030473r

  日期：2004.5.1

  Splitomicin (1) and 41 analogues were prepared and evaluated in cell-based Sir2 inhibition and toxicity assays and an in vitro Sir2 inhibition assay. Lactone ring or naphthalene (positions 7-9) substituents decrease activity, but other naphthalene substitutions (positions 5 and 6) are well-tolerated. The hydrolytically unstable aromatic lactone is important for activity. Lactone hydrolysis rates were used as a measure of reactivity; hydrolysis rates correlate with inhibitory activity. The most potent Sir2 inhibitors were structurally similar to and had hydrolysis rates similar to 1.