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Recent developments in the microwave-assisted synthesis of heterocycles are surveyed with the focus on diversity-oriented multi-component and multi-step one-pot procedures. Both solution- and solid-phase as well as polymer-supported methodologies for the preparation of libraries of heterocycles are reviewed. Advantages of microwave dielectric heating are highlighted by comparison with conventional...
Arylmagnesium species can be efficiently generated from magnesium turnings and aryl chlorides or aryl bromides under dielectric heating conditions. Subsequent microwave assisted transmetallation using ZnCl 2 –TMEDA afforded the corresponding arylzinc reagents. A sequential microwave assisted arylmagnesium formation–transmetallation–Negishi coupling protocol suitable for automated multiple...
Arylzinc reagents were readily prepared from aryl iodides using a Zn–Cu couple in a microwave environment. A sequential arylzinc formation-Negishi cross-coupling protocol suitable for parallel high-throughput synthesis has been developed.
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