1-(4-bromophenyl)-5-phenylpenta-1,4-diyn-3-one | 1430234-94-8

• 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-(4-bromophenyl)-5-phenylpenta-1,4-diyn-3-one
• CAS: 1430234-94-8
• 化学式: C₁₇H₉BrO
• 分子量: 309.162
• InChiKey: UFOBYABKYVXYOK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.1
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  1-(4-bromophenyl)-5-phenylpenta-1,4-diyn-3-one 在 1,1'-双(二苯基膦)二茂铁 、 chloro(1,5-cyclooctadiene)rhodium(I) dimer 、 氯苯 作用下， 反应 24.5h， 以70%的产率得到1-bromo-4-(phenylbuta-1,3-diyn-1-yl)benzene
  参考文献：
  名称：

  Rh(I)-Catalyzed Decarbonylation of Diynones via C–C Activation: Orthogonal Synthesis of Conjugated Diynes

  摘要：

  Utilization of C-C bond activation as a unique mode of reactivity for constructing C-C bonds provides new strategies for preparing important organic molecules. Development of a Rh(I)-catalyzed C-C activation of diynones to synthesize symmetrical and unsymmetrical conjugated diynes through decarbonylation is reported. This C-C cleavage strategy takes advantage of the innate reactivity of conjugated ynones without relying on any ring strain or auxiliary directing group. This alkynation method also has orthogonal properties compared to typical cross-coupling reactions.

  DOI：

  10.1021/ol400815y
• 作为产物：
  描述：

  苯丙炔酸 在 4-二甲氨基吡啶 、 三乙胺 、 N,N'-二环己基碳二亚胺 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 生成 1-(4-bromophenyl)-5-phenylpenta-1,4-diyn-3-one
  参考文献：
  名称：

  Rh(I)-Catalyzed Decarbonylation of Diynones via C–C Activation: Orthogonal Synthesis of Conjugated Diynes

  摘要：

  Utilization of C-C bond activation as a unique mode of reactivity for constructing C-C bonds provides new strategies for preparing important organic molecules. Development of a Rh(I)-catalyzed C-C activation of diynones to synthesize symmetrical and unsymmetrical conjugated diynes through decarbonylation is reported. This C-C cleavage strategy takes advantage of the innate reactivity of conjugated ynones without relying on any ring strain or auxiliary directing group. This alkynation method also has orthogonal properties compared to typical cross-coupling reactions.

  DOI：

  10.1021/ol400815y

文献信息

• Synthesis and Photoelectrochemical Performance of Chalcogenopyrylium Monomethine Dyes Bearing Phosphonate/Phosphonic Acid Substituents
  作者：Matthew A. Bedics、Kacie R. Mulhern、David F. Watson、Michael R. Detty

  DOI：10.1021/jo401280s

  日期：2013.9.6

  Chalcogenopyrylium monomethine dyes were prepared via condensation of a 4-methylchalcogenopyrylium compound with a chalcogenopyran-4-one bearing a 4-(diethoxyphosphoryl)phenyl substituent (or the phosphonic acid derivative). The dyes have absorbance maxima of 603-697 nm in the window where the solar spectrum is most intense. The dyes formed H-aggregates on TiO2, increasing the light-harvesting efficiency of the dyes. Shortcircuit photocurrent action spectra were acquired to evaluate the influence of dye structure on the photoelectrochemical performance.