Abstract
A highly efficient catalytic activity towards Heck and Suzuki cross-coupling reactions was observed for a palladium complex in ethyl-methyl imidazolium hexafluorophosphate, [EMIM] PF6 ionic liquid medium, at ambient temperature. The system provides a stable, reusable method for the reaction. The optimization for the suitable reactions conditions was explored, and the effect of substituents on boronic acid was investigated. Using a very modest amount of catalyst, good-to-excellent yields were achieved. The reaction conditions were mild and most importantly, the catalyst-ionic liquid mixture was easily recoverable and reused for six times without much loss in the catalytic activity, causing negligible impact on the environment.
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