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Palladium-catalyzed ligand-free and efficient Suzuki–Miyaura reaction of N -methyliminodiacetic acid boronates in water
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A green and efficient protocol has been developed for the Pd(OAc)2-catalyzed ligand-free Suzuki–Miyaura reaction of N-methyliminodiacetic acid (MIDA) boronates in water. In the presence of Pd(OAc)2 as a catalyst and (i-Pr)2NH as a base, the cross-coupling reactions of aryl bromides with aryl MIDA boronates proceeded smoothly in water without any surfactant, and various functional groups were tolerated under the optimized conditions. |