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Comprehensive Overview of Tert-butyl 3-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)azetidine-1-carboxylate (CAS No. 2296775-61-4)

The compound Tert-butyl 3-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)azetidine-1-carboxylate (CAS No. 2296775-61-4) is a highly specialized boronic ester derivative that has garnered significant attention in pharmaceutical and agrochemical research. With its unique azetidine core and dioxaborolane functional group, this molecule serves as a versatile intermediate in modern synthetic chemistry. Its tert-butyl carbamate (Boc) protecting group further enhances its utility in multi-step organic transformations, making it a valuable asset for drug discovery programs.

In recent years, the demand for boron-containing compounds has surged due to their pivotal role in Suzuki-Miyaura cross-coupling reactions, a cornerstone of C-C bond formation. Researchers frequently search for "stable boronic esters for coupling reactions" or "Boc-protected azetidine derivatives," reflecting the growing interest in this chemical space. The 4,4,5,5-tetramethyl-1,3,2-dioxaborolane moiety in this compound offers exceptional stability against hydrolysis, addressing a common challenge in handling boronic acid precursors.

From a structural perspective, the 3-methylazetidine scaffold introduces intriguing three-dimensionality to drug candidates—a feature increasingly sought after in fragment-based drug design. Pharmaceutical scientists investigating "saturated heterocycles for medicinal chemistry" or "conformationally restricted amine building blocks" will find this compound particularly relevant. The steric hindrance provided by both the methyl group at position 3 and the tetramethyl dioxaborolane unit can significantly influence the stereochemical outcome of subsequent reactions.

Analytical characterization of CAS No. 2296775-61-4 typically involves advanced techniques such as NMR spectroscopy (particularly ¹¹B NMR for boron verification), mass spectrometry, and HPLC purity analysis. These methods confirm the compound's structural integrity—a critical consideration for researchers comparing "authentic boronate esters vs. commercial samples." The crystalline nature of many dioxaborolane derivatives also facilitates X-ray diffraction studies for absolute configuration determination.

In synthetic applications, this compound enables access to functionalized azetidines through sequential deprotection and derivatization. The Boc group can be selectively removed under acidic conditions, exposing the secondary amine for further elaboration—a strategy frequently discussed in forums about "orthogonal protection in heterocycle synthesis." Meanwhile, the boronate ester functionality remains intact for subsequent cross-coupling, allowing efficient construction of complex molecular architectures.

Storage and handling recommendations for Tert-butyl 3-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)azetidine-1-carboxylate emphasize protection from moisture to preserve the boron-carbon bond integrity. Best practices include argon atmosphere storage with molecular sieves—a topic often queried as "long-term stabilization of boronic esters." The compound's stability profile makes it suitable for international shipping, meeting the needs of global research collaborations seeking "high-purity boron heterocycles."

Emerging applications in proteolysis targeting chimeras (PROTACs) and covalent inhibitors have further elevated interest in such structurally diverse intermediates. The compound's ability to serve as both a hydrogen bond acceptor (via the carbamate oxygen) and a metal-coordinating moiety (through the boronate) makes it particularly valuable in designing targeted protein degraders—a hot topic in current literature searches about "next-generation therapeutic modalities."

Environmental and regulatory aspects of 2296775-61-4 align with green chemistry principles, as the dioxaborolane group generates nontoxic byproducts upon workup. This characteristic responds to growing industry inquiries about "sustainable organoboron reagents" and "biodegradable synthetic intermediates." The compound's compatibility with flow chemistry setups additionally supports process intensification efforts in API manufacturing.

In conclusion, Tert-butyl 3-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)azetidine-1-carboxylate represents a sophisticated tool for medicinal chemists addressing challenges in three-dimensional scaffold diversification and transition metal-catalyzed transformations. Its dual functionality as both a protected amine and boronic ester positions it at the forefront of contemporary organic synthesis, answering numerous search queries about "multifunctional building blocks for drug discovery" and "advanced intermediates for C-C coupling."

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