(E)-2-(4,4-dibromobuta-1,3-dien-1-yl)furan | 919087-30-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 杂芳族化合物
• 英文名称: (E)-2-(4,4-dibromobuta-1,3-dien-1-yl)furan
• 英文别名: 1,1-dibromo-4-(2-furyl)-butadiene；2-[(1E)-4,4-dibromobuta-1,3-dienyl]furan
• CAS: 919087-30-2
• 化学式: C₈H₆Br₂O
• 分子量: 277.943
• InChiKey: BNFIADSYNHGWOW-HNQUOIGGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  11
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  13.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (E)-2-(4,4-dibromobuta-1,3-dien-1-yl)furan 在 1,10-菲罗啉 、 copper(ll) sulfate pentahydrate 、 四丁基氟化铵 、 potassium carbonate 作用下， 以 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 反应 2.5h， 生成 (E)-N-(4-(furan-2-yl)but-3-en-1-yn-1-yl)-N-methylmethanesulfonamide
  参考文献：
  名称：

  Zn(II)- or Ag(I)-Catalyzed 1,4-Metathesis Reactions between 3-En-1-ynamides and Nitrosoarenes

  摘要：

  Catalyst-dependent metathesis reactions between 3-en-1-ynamides and nitrosoarenes are described. Particularly notable are the unprecedented 1,4-metathesis reactions catalyzed by Ag(I) or Zn(II) to give 2-propynimidamides and benzaldehyde derivatives. With 3-en-1-ynamides bearing a cycloalkenyl group, 1,4-oxoimination products were produced efficiently. We have developed metathesis/alkynation cascades for unsubstituted 2-propynimidamides and benzaldehyde species generated in situ, to manifest 1,4-hydroxyimination reactions of 3-en-1-ynes. Both 1,4-oxoiminations and 1,4-hydroxyiminations increase the molecular complexity of products.

  DOI：

  10.1021/ja412634w
• 作为产物：
  描述：

  反-3-(2-呋喃基)丙烯醛 在 triphenylphosphine monolith functionalized with carbon tetrabromide 作用下， 以 二氯甲烷 为溶剂， 以91%的产率得到(E)-2-(4,4-dibromobuta-1,3-dien-1-yl)furan
  参考文献：
  名称：

  The application of a monolithic triphenylphosphine reagent for conducting Ramirez gem-dibromoolefination reactions in flow

  摘要：

  报道了在流动化学技术中应用单体三苯基膦进行Ramirez的gem-二溴烯化反应。通过仅去除溶剂而无需进一步离线纯化，合成了多种高纯度和优良产率的gem-二溴化合物。还可以使用相同的单体进行Appel反应，并讨论了两种反应机制之间的关系。

  DOI：

  10.3762/bjoc.9.207

文献信息

• De novo synthesis of functionalized 1,3-enynes and extended conjugated molecular systems
  作者：Maddali L. N. Rao、Priyabrata Dasgupta、Venneti N. Murty

  DOI：10.1039/c5ra01544h

  日期：——

  Pd-catalyzed coupling of 1,3-dienyldibromides with triarylbismuths was demonstrated for the synthesis of a diverse range of 1,3-enynes.

  钯催化的1,3-二烯基二溴化物与三芳基双锑的偶联被证明可用于合成多种1,3-炔烃。
• A Facile One-Carbon Homologation of Aryl Aldehydes to Amides
  作者：Wang Shen、Aaron Kunzer

  DOI：10.1021/ol025608m

  日期：2002.4.1

  in good to excellent yields. Both electron-donating and electron-withdrawing substitutions on the aromatic rings are tolerated, and the reaction works well with hindered alkylamines. This simple homologation could find broad applications. [reaction: see text]

  容易获得的2-芳基-1,1-二溴-1-烯烃可以在异常温和的条件下以良好或极好的收率转化为酰胺。芳环上的给电子取代和吸电子取代都是可容忍的，并且该反应与受阻烷基胺反应良好。这种简单的认证可以找到广泛的应用。[反应：看文字]
• Highly Efficient and Selective Synthesis of Conjugated Triynes and Higher Oligoynes of Biological and Materials Chemical Interest via Palladium-Catalyzed Alkynyl−Alkenyl Coupling
  作者：Estelle Métay、Qian Hu、Ei-ichi Negishi

  DOI：10.1021/ol0623825

  日期：2006.12.1

  Iteration of a Pd-catalyzed reaction of alkynyl- and oligoynylzincs with (E)-ICH-CHCI followed by metalation-termination with electrophiles(E) has provided a linear route to conjugated tri- and tetraynes, and Pd-catalyzed monoalkynylation of 1,1-dibromoenynes accompanied by dehydrobromination has provided a convergent route to conjugated tri-, tetra-, and pentaynes. Both display unprecedented high efficiency and selectivity.