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Non-Pd transition metal-catalyzed hydrostannations: Bu3SnF/PMHS as a tin hydride source

Robert E. Maleczka - No affiliation found

2013/05/13 Full-length article DOI: 10.1016/j.tet.2013.02.064 Journal: Tetrahedron

Abstract:

AbstractMolybdenum, cobalt, nickel, ruthenium, and rhodium catalyzed alkyne hydrostannations using in situ generated Bu3SnH were studied. In most cases, Bu3SnF+polymethylhydrosiloxane (PMHS) performed well as the in situ source of Bu3SnH. In contrast, the combination of Bu3SnCl/KFaq/PMHS, which had witnessed earlier success in Pd-catalyzed hydrostannation reactions, proved less employable in alkyne hydrostannations mediated by these metals.