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Widely Exploited, Yet Unreported: Regiocontrolled Synthesis and the Suzuki-Miyaura Reactions of Bromooxazole Building Blocks

Eur. J. Org. Chem. 2019, (18), 2884-2898

DOI: 10.1002/ejoc.201900032

Solomin V.; Radchenko D.; Slobodyanyuk E.; Geraschenko O.; Vashchenko B.; Grygorenko O.

An approach to synthesis of all isomeric bromooxazoles was optimized and its scope was extended to all three isomeric parents, as well as various alkyl‐ and aryl‐substituted bromooxazoles. The direct regiocontrolled lithiation followed by reaction with electrophilic bromine source was common and led exclusively to the target substituted 2‐, 4‐, and 5‐bromooxazoles on multigram scale. The utility of the multipurpose building blocks obtained in this work was demonstrated in the Suzuki–Miyaura cross‐coupling reaction under parallel synthesis conditions.

Widely Exploited, Yet Unreported: Regiocontrolled Synthesis and the Suzuki-Miyaura Reactions of Bromooxazole Building Blocks

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