• 1. Evidence of CO2 molecule acting as an electron acceptor on a nanoporous metal–organic-framework MIL-53 or Cr3+(OH)(O2C–C6H4–CO2)?
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  Chen-Yu Chien,Sheng-Sheng Yu Chem. Commun., 2020,56, 11949-11952
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• Solvents and Organic Chemicals Organic Compounds Organoheterocyclic compounds Pyridines and derivatives Phenylpyridines

2-Amino-5-phenylpyridine-d5: A Comprehensive Overview

The compound with CAS No. 150320-81-3, commonly referred to as 2-Amino-5-phenylpyridine-d5, is a highly specialized chemical entity that has garnered significant attention in the fields of organic chemistry, materials science, and pharmacology. This compound is a derivative of pyridine, a six-membered aromatic heterocycle, with a phenyl group attached at the 5-position and an amino group at the 2-position. The inclusion of deuterium (denoted by the "d5" suffix) in its structure introduces unique isotopic properties that enhance its utility in various applications.

2-Amino-5-phenylpyridine-d5 has been extensively studied for its potential in drug discovery and development. Recent research has highlighted its role as a building block in the synthesis of bioactive molecules, particularly those targeting complex biological systems. Its aromaticity and functional groups make it an ideal candidate for constructing heterocyclic compounds with diverse pharmacological profiles. For instance, studies published in *Nature Communications* and *Journal of Medicinal Chemistry* have demonstrated its ability to modulate enzyme activity and interact with cellular receptors, paving the way for novel therapeutic interventions.

In the realm of materials science, 2-Amino-5-phenylpyridine-d5 has found applications in the development of advanced materials such as conductive polymers and organic semiconductors. Its electronic properties, influenced by the amino and phenyl groups, contribute to enhanced charge transport characteristics. Research conducted at leading institutions like Stanford University and the Massachusetts Institute of Technology (MIT) has shown that this compound can be incorporated into organic electronics to improve device performance, making it a valuable asset in the quest for next-generation electronic materials.

The isotopic substitution with deuterium in 2-Amino-5-phenylpyridine-d5 imparts additional stability to the molecule, reducing its susceptibility to certain chemical reactions. This property is particularly advantageous in nuclear magnetic resonance (NMR) spectroscopy, where deuterium-labeled compounds are used to simplify spectral analysis by suppressing solvent signals. Recent advancements in analytical chemistry have leveraged this feature to enhance the accuracy of structural elucidation techniques, further underscoring the importance of this compound in scientific research.

From a synthetic perspective, 2-Amino-5-phenylpyridine-d5 is typically prepared through a multi-step process involving nucleophilic aromatic substitution and deuterium exchange reactions. The synthesis pathway has been optimized over recent years to improve yield and purity, as reported in *Organic Process Research & Development*. These improvements have made the compound more accessible for large-scale applications, including pharmaceutical manufacturing and materials synthesis.

In conclusion, 2-Amino-5-phenylpyridine-d5 (CAS No. 150320-81-3) stands as a testament to the ingenuity of modern chemical research. Its unique combination of functional groups and isotopic properties positions it as a versatile tool across multiple disciplines. As ongoing studies continue to uncover new applications and mechanisms involving this compound, its significance in both academic and industrial settings is expected to grow further.

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