对新N,N-bis-Tetrahydroacridines的实验和计算
Madalina-Marina Hrubaru1,2, Constantin Draghici1, Francis Aurelien Ngounoue Kamga3
1"C. D. Nenitzescu" Institute of Organic and Supramolecular Chemistry, Romanian Academy, Bucharest, Sector 6, Splaiul Independentei 202B, P.O. Box 35-108, 060023 Bucharest, Romania.
Molecules (Basel, Switzerland)
|September 14, 2024
概括
新合成的bis-tetrahydroacridines显示出作为制药剂和腐蚀抑制剂的潜力. 这些 π 结合的异芳香化合物使用光谱学和计算方法进行了表征.
科学领域:
- 有机化学 有机化学
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
背景情况:
- 四烯酸对于医疗应用和防腐蚀有兴趣.
- 双四烯酸代表了一种具有潜在功效的新型化合物类别.
研究的目的:
- 为了合成和描述新的bis-tetrahydroacridines.
- 研究这些化合物的电子,光学和电化学特性.
- 评估它们的潜在应用,特别是作为腐蚀抑制剂.
主要方法:
- 通过Pfitzinger凝结进行合成.
- 使用NMR,MS和FT-IR光谱学进行结构阐明.
- 使用DFT模型进行计算研究.
- 使用UV-Vis和各种电压测量技术进行光学和电化学表征.
主要成果:
- 成功合成了新型双四酸.
- 详细的结构和电子财产分析.
- 证明了与其潜在应用相关的光学和电化学特性.
结论:
- 合成的 bis-tetrahydroacridines 具有适用于制药应用的特性.
- 这些化合物显示出作为有效的腐蚀抑制剂的显著前景.
相关概念视频
01:07Preparation of Acid Anhydrides
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One of the methods for preparing symmetrical or unsymmetrical acid anhydrides involves the treatment of acid chlorides with the sodium salt of carboxylic acids. The reaction proceeds via a nucleophilic acyl substitution.
The carboxylate ion acts as a nucleophile that attacks the carbonyl carbon of the acid chloride to form a tetrahedral intermediate. Subsequently, the re-formation of the carbonyl group with the loss of the chloride ion as a leaving group leads to the formation of an acid...
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02:39Nomenclature of Alkynes
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Alkynes are unsaturated hydrocarbons characterized by the presence of carbon-carbon triple bonds and have a general formula CnH2n-2. The nomenclature of alkynes follows a set of rules similar to alkanes and alkenes; however, alkynes bear the suffix "-yne" instead of "-ane" or "-ene." There are two approaches to naming alkynes:
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01:11Nomenclature of Carboxylic Acid Derivatives: Amides and Nitriles
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Naming Amides
The IUPAC and common names of amides are derived from the parent carboxylic acid, by replacing the suffix “oic acid” and “ic acid,” respectively, with “amide.” In the following example, the IUPAC name ethanamide is derived from ethanoic acid, and the common name, acetamide, is obtained from acetic acid.
The IUPAC and common names of amides are derived from the parent carboxylic acid, by replacing the suffix “oic acid” and “ic acid,” respectively, with “amide.” In the following example, the IUPAC name ethanamide is derived from ethanoic acid, and the common name, acetamide, is obtained from acetic acid.
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01:08Nitriles to Carboxylic Acids: Hydrolysis
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Nitriles undergo acid-catalyzed hydrolysis or base-catalyzed hydrolysis to form a carboxylic acid. These reactions proceed via an amide intermediate.
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02:42Acidity of 1-Alkynes
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The acidic strength of hydrocarbons follows the order: Alkynes > Alkenes > Alkanes. The strength of an acid is commonly expressed in units of pKa — the lower the pKa, the stronger the acid. Among the hydrocarbons, terminal alkynes have lower pKa values and are, therefore, more acidic. For example, the pKa values for ethane, ethene, and acetylene are 51, 44, and 25, respectively, as shown here.
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01:19Amines to Amides: Acylation of Amines
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Next, the second equivalent of amine serves as a Brønsted base and deprotonates the quaternary...
Next, the second equivalent of amine serves as a Brønsted base and deprotonates the quaternary...
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