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5-Chloropyrimidine-2-carbonyl Chloride (CAS No. 1261457-50-4): An Overview and Recent Advances

5-Chloropyrimidine-2-carbonyl chloride (CAS No. 1261457-50-4) is a versatile compound with significant applications in the fields of medicinal chemistry and pharmaceutical research. This compound, characterized by its unique chemical structure, has garnered attention for its potential in the development of novel therapeutic agents. In this article, we will delve into the chemical properties, synthesis methods, and recent research advancements involving 5-Chloropyrimidine-2-carbonyl chloride.

The molecular formula of 5-Chloropyrimidine-2-carbonyl chloride is C₆H₃Cl₂N₂O, and it has a molecular weight of approximately 186.00 g/mol. The compound is a white to off-white solid at room temperature and is highly reactive due to the presence of the chloroformyl group (ClCO). This functional group makes 5-Chloropyrimidine-2-carbonyl chloride an excellent electrophile, facilitating its use in various chemical reactions, particularly in the formation of amides and esters.

In terms of synthesis, 5-Chloropyrimidine-2-carbonyl chloride can be prepared through several routes. One common method involves the reaction of 5-chloropyrimidine-2-carboxylic acid with thionyl chloride (SOCl₂) or phosphorus oxychloride (POCl₃). This process typically proceeds under reflux conditions and yields high purity 5-Chloropyrimidine-2-carbonyl chloride. Another approach involves the direct chlorination of pyrimidine-2-carbonyl chloride using chlorine gas or other chlorinating agents.

The reactivity and versatility of 5-Chloropyrimidine-2-carbonyl chloride have made it a valuable intermediate in the synthesis of various bioactive molecules. Recent studies have explored its potential in the development of antiviral and anticancer agents. For instance, a study published in the Journal of Medicinal Chemistry reported the synthesis of a series of pyrimidine derivatives using 5-Chloropyrimidine-2-carbonyl chloride. These derivatives exhibited potent antiviral activity against several RNA viruses, including influenza and Zika viruses.

In another notable research effort, scientists at a leading pharmaceutical company utilized 5-Chloropyrimidine-2-carbonyl chloride to develop novel anticancer compounds. The study, published in the European Journal of Medicinal Chemistry, described the synthesis and biological evaluation of a series of pyrimidine-based inhibitors targeting specific kinases involved in cancer progression. The results showed that these compounds effectively inhibited kinase activity and demonstrated significant antiproliferative effects on various cancer cell lines.

Beyond its applications in medicinal chemistry, 5-Chloropyrimidine-2-carbonyl chloride has also been investigated for its use in agrochemicals. Researchers have explored its potential as an intermediate in the synthesis of herbicides and fungicides. A study published in Pesticide Biochemistry and Physiology reported the successful synthesis of a new class of pyrimidine-based herbicides using 5-Chloropyrimidine-2-carbonyl chloride. These herbicides exhibited high efficacy against a range of weed species while showing low toxicity to non-target organisms.

The safety and handling of 5-Chloropyrimidine-2-carbonyl chloride are crucial considerations for researchers working with this compound. As with many chlorinated compounds, it is important to handle 5-Chloropyrimidine-2-carbonyl chloride with appropriate personal protective equipment (PPE) and under well-ventilated conditions to minimize exposure risks. Additionally, proper storage conditions should be maintained to ensure stability and prevent degradation.

In conclusion, 5-Chloropyrimidine-2-carbonyl chloride (CAS No. 1261457-50-4) is a highly valuable compound with diverse applications in medicinal chemistry, pharmaceutical research, and agrochemicals. Its unique chemical properties make it an excellent intermediate for the synthesis of bioactive molecules with potential therapeutic benefits. Ongoing research continues to uncover new applications and optimize its use in various fields, further solidifying its importance in modern scientific endeavors.

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