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Comprehensive Overview of 1-Benzyl-2,5-pyrrolidinedione (CAS No. 2142-06-5): Properties, Applications, and Research Insights

1-Benzyl-2,5-pyrrolidinedione (CAS 2142-06-5), a versatile heterocyclic compound, has garnered significant attention in pharmaceutical and organic synthesis research. This N-benzyl-substituted succinimide derivative is characterized by its unique molecular structure, combining a pyrrolidine-2,5-dione core with a benzyl group at the 1-position. The compound's dual functional groups enable diverse reactivity patterns, making it valuable for constructing complex molecular architectures.

Recent studies highlight its role as a key intermediate in synthesizing bioactive molecules, particularly in central nervous system (CNS) drug development. Researchers are investigating its potential as a precursor for nootropic compounds, aligning with growing consumer interest in cognitive enhancement supplements. The electron-withdrawing nature of the dione moiety facilitates various nucleophilic addition reactions, while the benzyl group offers opportunities for further functionalization through hydrogenation or cross-coupling reactions.

In analytical chemistry, 2142-06-5 demonstrates interesting chromatographic behavior due to its balanced polarity. HPLC studies reveal retention times between 6-8 minutes on C18 columns using acetonitrile/water mobile phases, a detail frequently searched by analytical chemists optimizing separation protocols. The compound's UV absorption maxima at 210 nm and 254 nm make it detectable by common photodiode array detectors.

The thermal stability of 1-Benzyl-2,5-pyrrolidinedione has been extensively characterized through differential scanning calorimetry (DSC), showing a sharp melting endotherm at 98-102°C. This property is crucial for pharmaceutical formulation scientists exploring hot-melt extrusion techniques, a trending topic in drug delivery system optimization. Its crystalline structure, solved by X-ray diffraction, reveals intermolecular hydrogen bonding patterns that influence solubility characteristics.

Environmental fate studies indicate moderate biodegradability of this compound under aerobic conditions, with a half-life of approximately 30 days in standard OECD 301 tests. These findings address growing concerns about green chemistry and sustainable synthesis, topics dominating recent chemical industry discussions. The compound's low bioaccumulation potential (logPow = 1.2) further enhances its profile for industrial applications.

In material science, derivatives of 2142-06-5 have shown promise as monomers for specialty polymers. The rigid pyrrolidinedione core can impart thermal stability to polyamides, while the benzyl group offers opportunities for post-polymerization modifications. This aligns with current research trends in high-performance polymers for aerospace and electronics applications.

Spectroscopic characterization of 1-Benzyl-2,5-pyrrolidinedione reveals distinctive signals: 1H NMR (400 MHz, CDCl3) shows aromatic protons at 7.3-7.4 ppm (multiplet) and methylene protons at 4.6 ppm (singlet). The 13C NMR spectrum displays carbonyl carbons at 177 ppm, with the benzyl carbon appearing at 44 ppm. These spectral features are frequently referenced in structure elucidation workflows and patent applications.

Recent patent analyses show increasing utilization of CAS 2142-06-5 in photoresist formulations for semiconductor manufacturing, particularly in EUV lithography processes. This application capitalizes on the compound's UV transparency and thermal stability, meeting the semiconductor industry's demand for advanced materials in chip fabrication.

Quality control protocols for 1-Benzyl-2,5-pyrrolidinedione typically specify ≥98% purity by HPLC, with residual solvent limits complying with ICH guidelines. The compound's hygroscopic nature necessitates storage under nitrogen atmosphere, a practical consideration often searched by laboratory personnel handling moisture-sensitive compounds.

Emerging research explores the compound's potential in asymmetric synthesis when combined with chiral auxiliaries. The prochiral center at the 3-position of the pyrrolidinedione ring enables diastereoselective transformations, particularly valuable for producing single-enantiomer pharmaceuticals - a major focus area in modern drug development.

From a regulatory perspective, 2142-06-5 is not currently listed in major chemical control inventories, though proper laboratory safety protocols should always be followed. Material Safety Data Sheets recommend standard personal protective equipment including gloves and safety goggles when handling the compound in powder form.

The global market for 1-Benzyl-2,5-pyrrolidinedione reflects steady growth, with primary suppliers located in North America, Europe, and Asia. Current pricing trends show stability in the $50-100 per gram range for research quantities, with bulk pricing available for commercial applications. This economic aspect is particularly relevant for process chemists evaluating synthetic routes.

Future research directions may explore the compound's utility in click chemistry applications, given the reactivity of its carbonyl groups with various nucleophiles. Additionally, its potential as a ligand precursor in transition metal catalysis warrants further investigation, especially for C-C bond forming reactions important in pharmaceutical synthesis.

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• 932171-10-3(1-[3-(Benzylamino)propyl]pyrrolidin-2-one)
• 10481-86-4(2-Pyrrolidinone,1,1'-(1,4-phenylenedicarbonyl)bis- (9CI))
• 953752-30-2(1-{4-(aminomethyl)phenylmethyl}pyrrolidin-2-one)
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