McAfee, Seth M. published the artcileUtility of a heterogeneous palladium catalyst for the synthesis of a molecular semiconductor via Stille, Suzuki, and direct heteroarylation cross-coupling reactions, Synthetic Route of 239075-02-6, the publication is RSC Advances (2015), 5(33), 26097-26106, database is CAplus.
The com. available silica-supported heterogeneous catalyst SiliaCat DPP-Pd has proven to be highly active, robust, and reusable for the synthesis of a thiophene-phthalimide-based mol. semiconductor under microwave-irradiation reaction conditions. A Stille reaction protocol demonstrated that SiliaCat DPP-Pd outperformed well-known homogeneous catalysts, Pd(PPh3)4 and Pd(PPh3)2Cl2, in terms of performance and catalyst loading, while also exhibiting tolerance to ambient reaction conditions and two-fold recyclability for the formation of product. The success established for SiliaCat DPP-Pd catalyzed Stille reactions via microwave irradiation was extended to optimize Suzuki coupling and direct heteroarylation protocols. Notably, direct heteroarylation with SiliaCat DPP-Pd exhibited excellent selectivity and perturbed the formation of homo-coupled aryl bromides, two side reactions that are known to plague this type of cross-coupling reaction.
RSC Advances published new progress about 239075-02-6. 239075-02-6 belongs to alcohols-buliding-blocks, auxiliary class Thiophene,Boronic acid and ester,Boronate Esters, name is 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, and the molecular formula is C20H28B2O4S2, Synthetic Route of 239075-02-6.
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