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2-3-(4-Chlorophenoxy)phenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS No. 364354-03-0): A Comprehensive Overview

2-3-(4-Chlorophenoxy)phenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS No. 364354-03-0) is a versatile compound with significant applications in the fields of organic synthesis and medicinal chemistry. This compound belongs to the class of boronic esters and is widely used as a coupling reagent in Suzuki-Miyaura cross-coupling reactions. The unique structural features of this compound make it an essential building block for the synthesis of complex organic molecules and pharmaceuticals.

The molecular structure of 2-3-(4-Chlorophenoxy)phenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane consists of a dioxaborolane ring substituted with a 4-chlorophenoxyphenyl group and four methyl groups. The presence of the boron atom in the dioxaborolane ring provides the compound with high reactivity and stability under various reaction conditions. This makes it an ideal choice for palladium-catalyzed cross-coupling reactions, which are crucial in the synthesis of biologically active compounds.

Recent research has highlighted the importance of 2-3-(4-Chlorophenoxy)phenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane in the development of new drugs and materials. For instance, a study published in the Journal of Medicinal Chemistry demonstrated that this compound can be used to synthesize novel antitumor agents with improved pharmacological properties. The researchers utilized the compound as a key intermediate in the synthesis of a series of substituted phenylboronic acids, which exhibited potent anticancer activity against various cancer cell lines.

In addition to its applications in medicinal chemistry, 2-3-(4-Chlorophenoxy)phenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane has also found use in materials science. A recent paper in Advanced Materials reported the successful synthesis of conjugated polymers using this compound as a monomer. The resulting polymers exhibited excellent photophysical properties and were used to fabricate high-performance organic photovoltaic devices. This highlights the compound's potential in developing advanced materials for energy applications.

The synthetic route for 2-3-(4-Chlorophenoxy)phenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane typically involves several steps. First, 4-chlorophenol is reacted with 1-bromo-2-fluorobenzene to form 1-bromo-2-(4-chlorophenoxy)benzene. This intermediate is then converted to the corresponding boronic ester through a palladium-catalyzed borylation reaction using bis(pinacolato)diboron as the boron source. The final product is obtained after purification by column chromatography.

The safety and handling of 2-3-(4-Chlorophenoxy)phenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane should be conducted with care due to its reactivity and potential health hazards. It is recommended to handle this compound under inert conditions and to use appropriate personal protective equipment (PPE). Additionally, proper storage conditions should be maintained to prevent degradation and ensure its stability over time.

In conclusion, 2-3-(4-Chlorophenoxy)phenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS No. 364354-03-0) is a valuable reagent with diverse applications in organic synthesis and materials science. Its unique chemical properties make it an indispensable tool for researchers working on the development of new drugs and advanced materials. As research continues to advance in these fields, the importance of this compound is likely to grow further.

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