2,6-diphenyl-4-(3-formylprop-2-enylidene)-4H-pyran | 17203-26-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃
• 英文名称: 2,6-diphenyl-4-(3-formylprop-2-enylidene)-4H-pyran
• 英文别名: 4-(2,6-diphenylpyran-4-ylidene)but-2-enal
• CAS: 17203-26-8
• 化学式: C₂₁H₁₆O₂
• 分子量: 300.357
• InChiKey: VITFOEUKFPFBEI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.78
• 重原子数：
  23.0
• 可旋转键数：
  4.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  26.3
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  2,6-diphenyl-4-(3-formylprop-2-enylidene)-4H-pyran 、 在 CH₃O₂^(1-)*Na⁽¹⁺⁾ 、 乙酸酐 作用下， 反应 0.17h， 以70%的产率得到6-[(1E,3E)-5-(2,6-Diphenyl-pyran-4-ylidene)-penta-1,3-dienyl]-1,3-dimethyl-2-phenyl-cyclohepta[c]pyrrolium; perchlorate
  参考文献：
  名称：

  Polymethine dyes based on 2-azoniaazulene

  摘要：

  DOI：

  10.1007/bf01165007

文献信息

• Dipolar and V-shaped structures incorporating methylenepyran and diazine fragments
  作者：Sylvain Achelle、Samia Kahlal、Jean-Yves Saillard、Nolwenn Cabon、Bertrand Caro、Françoise Robin-le Guen

  DOI：10.1016/j.tet.2014.02.071

  日期：2014.4

  Thirteen novel dipolar and V-shaped chromophores with pyranylidene electron-donating part, diazine electron-withdrawing part and various pi-linkers were synthesized. The extent of intramolecular charge transfer, structure-property relationships and optical properties were further investigated by UV/Vis absorption, electrochemistry, and DFT calculations. (C) 2014 Elsevier Ltd. All rights reserved.
• Reynolds, G. A.; Chen, C. H., Journal of Heterocyclic Chemistry, 1981, vol. 18, p. 627 - 629
  作者：Reynolds, G. A.、Chen, C. H.

  DOI：——

  日期：——
• γ-Methylene chalcogenapyrans and benzopyrans as proaromatic donors in “push–pull” Fischer type carbene complexes: Influences of chalcogen atom and chain length on the electronic and N.L.O. properties of these molecules
  作者：N. Faux、B. Caro、F. Robin-Le Guen、P. Le Poul、K. Nakatani、E. Ishow

  DOI：10.1016/j.jorganchem.2005.07.049

  日期：2005.11

  A new class of push-pull molecules bearing gamma-methylene chalcogenapyran and benzopyran nucleus as proaromatic donors and methoxypentacarbonyltungstene carbene fragment as acceptors is described. N.L.O. properties (as mu beta by EFISH) of these complexes have been investigated. The influence of the unsaturated chain length, of the presence of the fused aromatic ring and of the chalcogen atom on the first hyperpolarizability values are shown. (c) 2005 Elsevier B.V. All rights reserved.
• New donors with two-electron oxidation. Synthesis and electrochemical properties of highly conjugated bis(4H-thiopyrans) and bis(flavenes)
  作者：Chin H. Chen、Jeffrey J. Doney、George A. Reynolds、Franklin D. Saeva

  DOI：10.1021/jo00164a024

  日期：1983.8