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Dedicated to the memory of academician N. S. Zefirov.Abstract: Solvent-free protocols for palladium-catalyzed stannylation of aryl halides, Stille cross-coupling, and one-pot, twostep stannylation/Stille cross-coupling (SSC) are reported for the first time. (Het)aryl halides bearing acceptor, donor, as well as sterically demanding substituents are stannylated and/or coupled in high yields. The reactions are catalyzed by conventional palladium(II) acetate/PCy 3 [Pd(OAc) 2 /PCy 3 ] under air, using avail-

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