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Palladium-catalyzed arylation and vinylation of olefins (Heck reaction) are important reactions in organic synthesis [1, 2]. In most cases, under classical conditions (closed system, no solvent, temperature 100–120°C) complete substrate conversion is attained in several hours to several days [3]. Attempts to carry out the reaction at a higher temperature resulted in decomposition of the catalytic system and formation of by-products. In the recent time, examples of successful application of microwave irradiation to accelerate Heck reactions in polar solvents have been reported [4–8]. |
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