• 1. Cobalt oxide–carbon nanocatalysts with highly enhanced catalytic performance for the green synthesis of nitrogen heterocycles through the Friedl?nder condensation
  Marina Godino-Ojer,Antonio J. López-Peinado,Francisco J. Maldonado-Hódar,Esther Bailón-García,Elena Pérez-Mayoral Dalton Trans. 2019 48 5637
• 2. A decennary update on applications of metal nanoparticles (MNPs) in the synthesis of nitrogen- and oxygen-containing heterocyclic scaffolds
  Tejas M. Dhameliya,Hiren A. Donga,Punit V. Vaghela,Bhoomi G. Panchal,Dipen K. Sureja,Kunjan B. Bodiwala,Mahesh T. Chhabria RSC Adv. 2020 10 32740
• 3. Highly regio-, diastereo- and enantioselective one-pot gold/chiral Br?nsted acid-catalysed cascade synthesis of bioactive diversely substituted tetrahydroquinolines
  Xin-Yuan Liu,Ya-Ping Xiao,Fung-Ming Siu,Li-Chen Ni,Yong Chen,Lin Wang,Chi-Ming Che Org. Biomol. Chem. 2012 10 7208
• 4. Cyclisation reactions of some pyridazinylimidoylketenes
  Alexander P. Gaywood,Lawrence Hill,S. Haider Imam,Hamish McNab,Gabor Neumajer,William J. O’Neill,Péter Mátyus New J. Chem. 2010 34 236
• 5. The effect of chlorine substitution on the inclusion properties of a diquinoline host molecule
  Jason Ashmore,Roger Bishop,Donald C. Craig,Marcia L. Scudder CrystEngComm 2002 4 194

• Solvents and Organic Chemicals Organic Compounds Benzenoids Benzene and substituted derivatives Benzoyl derivatives

2-Amino-5-chlorobenzaldehyde (CAS No. 20028-53-9): An Overview of Its Properties, Applications, and Recent Research

2-Amino-5-chlorobenzaldehyde (CAS No. 20028-53-9) is a versatile organic compound with a wide range of applications in the fields of chemistry, biology, and pharmaceuticals. This compound is characterized by its unique molecular structure, which includes an amino group and a chloro substituent on a benzaldehyde framework. The combination of these functional groups endows 2-Amino-5-chlorobenzaldehyde with distinct chemical properties and reactivity, making it a valuable building block in various synthetic processes.

The molecular formula of 2-Amino-5-chlorobenzaldehyde is C₇H₆ClNO, and its molecular weight is approximately 161.58 g/mol. The compound is a white to off-white crystalline solid at room temperature and is soluble in common organic solvents such as ethanol, methanol, and dimethyl sulfoxide (DMSO). Its melting point ranges from 117 to 119°C, and it has a characteristic aldehyde odor.

In the realm of organic synthesis, 2-Amino-5-chlorobenzaldehyde serves as a key intermediate for the preparation of more complex molecules. Its reactivity is primarily centered around the aldehyde group, which can undergo various reactions such as nucleophilic addition, condensation, and reduction. For instance, the aldehyde group can be reduced to form the corresponding alcohol or further oxidized to produce the carboxylic acid derivative. Additionally, the amino group can participate in condensation reactions with carbonyl compounds to form imines or Schiff bases.

The presence of the chloro substituent on the benzene ring adds another layer of complexity to the reactivity of 2-Amino-5-chlorobenzaldehyde. This functional group can be used as a leaving group in substitution reactions or as a directing group in electrophilic aromatic substitution reactions. For example, it can be displaced by nucleophiles such as ammonia or alkylamines to form substituted anilines or substituted benzylamines.

In the pharmaceutical industry, 2-Amino-5-chlorobenzaldehyde has gained attention due to its potential as a lead compound for drug discovery. Recent research has explored its use in the development of novel drugs for various therapeutic applications. One notable area of interest is its role in the synthesis of antiviral agents. Studies have shown that derivatives of 2-Amino-5-chlorobenzaldehyde exhibit potent antiviral activity against several viruses, including influenza and herpes simplex virus (HSV). The mechanism of action involves inhibition of viral replication through interference with key viral enzymes.

Beyond antiviral applications, 2-Amino-5-chlorobenzaldehyde has also been investigated for its potential in cancer therapy. Research has demonstrated that certain derivatives of this compound possess cytotoxic properties against various cancer cell lines. These derivatives are believed to induce apoptosis through mechanisms involving DNA damage and disruption of cell cycle progression. The specific structural features that contribute to these biological activities are currently under investigation to optimize their therapeutic potential.

In addition to its pharmaceutical applications, 2-Amino-5-chlorobenzaldehyde has found use in other areas such as materials science and analytical chemistry. In materials science, it has been employed as a precursor for the synthesis of functional polymers and coatings with enhanced properties such as improved thermal stability and mechanical strength. In analytical chemistry, it serves as a reagent for the detection and quantification of various analytes through colorimetric or fluorometric assays.

The environmental impact of 2-Amino-5-chlorobenzaldehyde is another important consideration in its use and disposal. While it is not classified as a hazardous substance under current regulations, proper handling and disposal practices should be followed to minimize any potential environmental risks. Recent studies have focused on developing more sustainable synthetic routes for the production of this compound using green chemistry principles. These approaches aim to reduce waste generation, minimize energy consumption, and utilize renewable resources.

In conclusion, 2-Amino-5-chlorobenzaldehyde (CAS No. 20028-53-9) is a multifaceted compound with significant applications in organic synthesis, pharmaceuticals, materials science, and analytical chemistry. Its unique chemical properties make it an invaluable building block for the development of novel compounds with diverse functionalities. Ongoing research continues to uncover new uses and optimize existing applications of this versatile compound.

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