3,3-diphenyl-[3H]naphtho [2,1-b]pyran-8-carboxylic acid | 211797-02-3

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 黄酮类化合物
• 英文名称: 3,3-diphenyl-[3H]naphtho [2,1-b]pyran-8-carboxylic acid
• 英文别名: 3,3-diphenyl-3H-benzo[f]chromene-8-carboxylic acid；3,3-Diphenylnaphthopyran-8-carboxylic acid；3,3-diphenylbenzo[f]chromene-8-carboxylic acid
• CAS: 211797-02-3
• 化学式: C₂₆H₁₈O₃
• 分子量: 378.427
• InChiKey: HNNPZAZEZDHYTR-UHFFFAOYSA-N

物化性质

• 熔点：
  305-306 °C (decomp)(Solv: acetonitrile (75-05-8))
• 沸点：
  583.4±50.0 °C(Predicted)
• 密度：
  1.286±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  6.2
• 重原子数：
  29
• 可旋转键数：
  3
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.04
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3,3-diphenyl-[3H]naphtho [2,1-b]pyran-8-carboxylic acid 在 4-吡咯烷基吡啶 、 N,N'-二环己基碳二亚胺 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 反应 72.0h， 生成 5-[3,3-Diphenyl-prop-2-en-(Z)-ylidene]-6-oxo-5,6-dihydro-naphthalene-2-carboxylic acid thiophen-2-ylmethyl ester
  参考文献：
  名称：

  光调制材料的前体噻吩取代的3 H-萘[2,1 - b ]吡喃的合成

  摘要：

  3的合成ħ -萘并[2,1- b ]吡喃9 - 21连接于噻吩部分进行说明。两种不同的合成方法被用于制备这些新颖的功能化化合物，并报道了它们在溶液中的光谱动力学性质。

  DOI：

  10.1002/hlca.19980810540
• 作为产物：
  描述：

  2-羟基-6-萘甲酸 、 1,1-二苯基-2-丙炔-1-醇 在 对甲苯磺酸 作用下， 以 乙腈 为溶剂， 反应 48.0h， 以72%的产率得到3,3-diphenyl-[3H]naphtho [2,1-b]pyran-8-carboxylic acid
  参考文献：
  名称：

  Gelation Behavior of 2H-Chromene N-Acylamino Acid Conjugates

  摘要：

  [GRAPHICS]2H-Chromene-based conjugates of N-acyl-1,omega-amino acids (5, 9a-f, 14a-f) of natural amino acids (10a,b) and of dipeptide (10c) are prepared (60-97%) by N-acylbenzotriazole methodology in aqueous media at 20 degrees C. Gelation properties of the corresponding sodium salts in DMF and DMSO are generalized with respect to an increase or decrease in the chain length of the spacer.

  DOI：

  10.1021/jo900066m

文献信息

• Systemic study on fluorescent switching systems composed of naphthopyran and benzimidazole in solution and film forms
  作者：Yi He、Guang Wang、Mingxin Wang

  DOI：10.1016/j.molstruc.2016.03.031

  日期：2016.7

  The fluorescent photo-switching systems were prepared based on fluorescent benzimidazole and photochromic naphthopyran. Naphthopyran in this systems displayed excellent photochromic performance in tetrahydrofuran solutions and in PMMA films. The fluorescent emission of benzimidazole was modulated between "on" and "off" via the photoisomerization of naphthopyran in high-contrast due to the photoinduced energy transfer from benzimidazole to the open-form naphthopyran. Both the fluorescent photoswitching and the photochromism of benzimidazole-naphthopyran dyads in solutions and films displayed excellent fatigue resistance. The spaces between benzimidazole and naphthopyran affect the absorbance and fluorescence spectra of benzimidazole-naphthopyran dyads. The non-destructive readout ability of synthesized dyads in doped PMMA film was achieved. (C) 2016 Elsevier B.V. All rights reserved.