1-(5-bromopent-1-ynyl)naphthalene | 120756-47-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: 1-(5-bromopent-1-ynyl)naphthalene
• 英文别名: 1-Bromo-5-(1-naphthyl)-pent-4-yne
• CAS: 120756-47-0
• 化学式: C₁₅H₁₃Br
• 分子量: 273.172
• InChiKey: BFMJSWBQWUMSTK-UHFFFAOYSA-N

物化性质

• 沸点：
  389.2±25.0 °C(Predicted)
• 密度：
  1.34±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.9
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  1-(5-bromopent-1-ynyl)naphthalene 在 rose bengal 氧气 、 magnesium 作用下， 以 四氢呋喃 为溶剂， 反应 2.0h， 生成 4-[1-Acetoxy-6-(1-naphthyl)-5-hexynyl]-5-hydroxy-2(5H)-furanone
  参考文献：
  名称：

  Singlet oxygen oxidation of substituted furans to 5-hydroxy-2(5H)-furanone

  摘要：

  The conditions for the regiospecific singlet oxygen oxidation of various 2,4-disubstituted furans 9 to 4-substituted-2 (5H)-furanones 3 are developed. The presence of a C-2 substituent (e.g., trimethylsilyl, tert-butyldimethylsilyl, or tributylstannyl) in 9 is an absolute requirement for the formation of the 4-substituted-5-hydroxy-2(5H)-furanone regioisomer 3. When the C-2 substituent is triethylsilyl (TES) or TBDMS, however, apart from 3, the corresponding 5-trialkylsiloxy derivative 11 is also isolated in a significant amount. These silyl acetals are unexpectedly stable but can be hydrolyzed back to 3 on stirring with dilute acid. The formation of silyl acetals, to our knowledge, has never been reported in the singlet oxygen oxidation of (trialkylsilyl)furan. A plausible mechanism for their formation is proposed. The presence of a catalytic amount of water in the oxidation of 2-(trialkylsilyl)-4-substituted-furans not only eliminates the formation of the silyl acetals but also speeds up the rate of the oxidation process. Moreover, the oxidation can then be carried out at 0-degrees-C instead of at -78-degrees-C. Oxidation of 2-(1-hydroxyalkyl)-4-substituted-furans in the absence of a reducing agent gives little or no sign of 2,5-disubstituted-6-hydroxy-3(2H)-pyranone 23 but instead 26 selectively. Thus, the (1-hydroxy)alkyl group can be utilized as the trialkylsilyl or trialkylstannyl group in dictating the regioselectivity in the singlet oxygen oxidation of substituted furans.

  DOI：

  10.1021/jo00025a012
• 作为产物：
  描述：

  5-(naphthalen-1-yl)pent-4-yn-1-ol 在 四溴化碳 、 三苯基膦 作用下， 以 二氯甲烷 为溶剂， 反应 1.0h， 以93%的产率得到1-(5-bromopent-1-ynyl)naphthalene
  参考文献：
  名称：

  降冰片烯在CH功能化过程中的多种作用：通过三重多米诺反应简明合成四环稠合吡咯

  摘要：

  报道了通过钯（0）催化和降冰片烯介导的三重多米诺反应，由1-（2-碘苯基）-1 H-吡咯和各种溴代烷基-芳基炔烃合成新型四环稠合吡咯。在降冰片烯和Cs 2 CO 3在90°C的CH 3 CN中存在时，PdCl 2和三-2-呋喃基膦（TFP）可以通常以高收率得到各种四环稠合吡咯。在所描述的反应顺序中，三个碳-碳键中的两个是通过未活化的芳基C-H键的官能化形成的。

  DOI：

  10.1016/j.tet.2008.01.146

文献信息

• Anti-inflammatory furanones
  申请人：Allergan, Inc.

  公开号：US05134128A1

  公开（公告）日：1992-07-28

  New 5-hydroxy-2-furanone compounds having anti-inflammatory, immunosuppressive and anti-proliferative activity and are useful in treating psoriasis and modifying calcium homeostasis.

  新的具有抗炎、免疫抑制和抗增殖活性的5-羟基-2-呋喃酮化合物对治疗牛皮癣和调节钙稳态具有用处。
• A Convenient Synthesis of Indolo- and Pyrrolobenzazepines via a Threefold Norbornene-Mediated Domino Reaction
  作者：Mark Lautens、Valentina Aureggi、Marion Davoust、Kersten Gericke

  DOI：10.1055/s-0028-1088195

  日期：2009.4

  A practical synthesis of a novel class of fused hetero­cycles was developed from 1-(2-iodobenzyl)-1H-pyrrole and -indoles with various bromoalkyl aryl alkynes. This palladium(0)-catalyzed norbornene-mediated domino reaction allows the efficient formation of three carbon-carbon bonds in a one-pot procedure with PdCl2 and tri-2-furylphosphine (TFP), in the presence of norbornene and Cs2CO3 in acetonitrile at 90 ˚C. New seven-membered-ring fused heterocycles are obtained in moderate to excellent yields.

  一种新型融合杂环的实用合成方法是由 1-(2-碘苄基)-1H-吡咯和吲哚与各种溴烷基芳基炔化合物合成的。这种钯（0）催化的降冰片烯介导的多米诺反应可以在降冰片烯和 Cs2CO3 的存在下，于 90 ℃ 的乙腈中，通过 PdCl2 和三-2-呋喃基膦（TFP）的一锅式反应，高效地形成三个碳-碳键。新的七元环融合杂环以中等到极好的收率获得。
• US5134128A
  申请人：——

  公开号：US5134128A

  公开（公告）日：1992-07-28