benzyl acenaphtho<1,2-c>pyrrole-1-carboxylate

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: benzyl acenaphtho<1,2-c>pyrrole-1-carboxylate
• 英文别名: benzyl 8H-acenaphthyleno[1,2-c]pyrrole-9-carboxylate
• 化学式: C₂₂H₁₅NO₂
• 分子量: 325.367
• InChiKey: NSYXHJMELNQOCR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5
• 重原子数：
  25
• 可旋转键数：
  4
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.05
• 拓扑面积：
  42.1
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  benzyl 5-(acetoxymethyl)-4-ethyl-3-methyl-1H-pyrrole-2-carboxylate 、 benzyl acenaphtho<1,2-c>pyrrole-1-carboxylate 在 Montmorillonite clay K₁₀ 作用下， 以 二氯甲烷 为溶剂， 以82%的产率得到benzyl 3-(5-benzyloxycarbonyl-3-ethyl-4-methyl-2-pyrrolylmethyl)acenaphtho<1,2-c>pyrrole-1-carboxylate
  参考文献：
  名称：

  Porphyrins with Exocyclic Rings. 13.¹ Synthesis and Spectroscopic Characterization of Highly Modified Porphyrin Chromophores with Fused Acenaphthylene and Benzothiadiazole Rings

  摘要：

  As part of a survey on the influence of fused aromatic rings on the porphyrin chromophore, a series of novel structures with fused acenaphthylene or benzothiadiazole rings have been synthesized. Base-catalyzed condensation of 1-nitroacenaphthylene or 4-nitrobenzothiadiazole with esters of isocyanoacetic acid afforded good yields of the annelated pyrroles 5 and 28. Cleavage of the ester moieties with KOH in refluxing ethylene glycol gave the unsubstituted heterocycles, and subsequent condensation with 2 equiv of acetoxymethylpyrroles 9 in acetic acid/ethanol produced the modified tripyrranes 12 and 31. Tripyrranes with terminal tert-butyl ester units were treated with TFA and condensed with 3,4-diethyl-2,5-pyrroledicarboxaldehyde 13 in dichloromethane to give, following oxidation with DDQ, the corresponding pi-extended porphyrins 14 and 32. Acenaphthoporphyrins 14 showed unique UV-vis spectra with a triply split Soret band region and a relatively strong band near 660 nm. Strongly red-shifted absorptions were also noted for the dications and the nickel(II), copper(II), and zinc chelates for this system. Thiadiazoloporphyrins 32 gave two broadened Soret bands, but the Q-band region was unexceptional. However, the nickel(II), copper(II), and zinc complexes all showed abnormally strong absorptions between 600 and 612 nm. Porphyrins with two antipodal fused aromatic rings were easily prepared by condensing c-annelated pyrroledialdehydes 17 with tripyrranes 12 and 31, and the spectroscopic properties of the resulting porphyrins showed that the observed ring-fusion effects were essentially additive. Porphyrins with two adjacent acenaphthylene rings were also prepared by the MacDonald "2 + 2" condensation, although this chemistrry gave poor results in the synthesis of a porphyrin with two fused benzothiadiazole rings. The spectroscopic properties of these new highly conjugated porphyrin structures show that ring fusion can profoundly modify the porphyrin chromophore.

  DOI：

  10.1021/jo9815655
• 作为产物：
  描述：

  苊烯 在 Nitryl chloride 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 四氯化碳 为溶剂， 反应 0.5h， 生成 benzyl acenaphtho<1,2-c>pyrrole-1-carboxylate
  参考文献：
  名称：

  扩展卟啉发色团：杂卟啉与菲和苊融合

  摘要：

  芳香亚基融合到卟啉发色团上会产生不同的结果，在某些情况下，只观察到轻微的红移。为了扩展这些观察，已经合成了一系列具有稠合苊或菲单元的氧杂、硫杂和硒卟啉。菲[5,6- b]卟啉以前是通过传统的“2+2”麦克唐纳缩合制备的，但现在报道了一种更通用的“3+1”合成。在三氟乙酸存在下，菲并三吡喃与吡咯二醛反应，然后进行氧化步骤，得到苯卟啉。然而，这种化学反应最初产生的产品受到异构体杂质的污染。幸运的是，当反应在相对浓缩的条件下进行时，可以获得良好的异构纯苯卟啉，并且使用这种策略也获得了二苯卟啉。进行了另一种“3+1”合成，其中苯吡咯二醛与三吡喃缩合，这也以良好的产率提供了苯卟啉。呋喃，噻吩和硒吩二醛类似地与菲和苊三吡喃反应，得到一系列具有稠合菲和苊环的杂卟啉。所有这些类卟啉都保留了高度的介电特性。与四吡咯卟啉的情况一样，稠合苊单元的存在导致高度修改的 UV-vis 光谱具有多个 Soret 带和高于

  DOI：

  10.1016/j.tet.2021.132481