A microwave-enhanced, rapid, and efficient solid-phase version of the Sonogashira reaction is presented. It has been applied to the coupling of aryl iodides and bromides with various acetylene derivatives giving excellent yields in 15-25 min. The scopes of homogeneous, solventless, and solid-phase conditions for Sonogashira coupling of aryl halides are compared.
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Erdélyi et al. (2003) studied this question.
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