Catalytic Dehydrogenative Stannylation of C(sp)-H Bonds Involving Cooperative Sn-H Bond Activation of Hydrostannanes
Francis Forster, Victoria M. Rendón López and Martin Oestreich*
*Institut für Chemie, Technische Universität Berlin, Strasse
des 17. Juni 115, 10623 Berlin, Germany, Email: martin.oestreich
tu-berlin.de
F. Forster, V. M. R. López, M. Oestreich, J. Am. Chem. Soc., 2018, 140, 1259-1262.
DOI: 10.1021/jacs.7b13088
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Abstract
A heterolytic cleavage of the Sn-H bond in hydrostannanes catalyzed by Ohki-Tatsumi complexes enables the generation of a stannylium-ion-like tin electrophile, that reacts with terminal acetylenes in a dehydrogenative stannylation of the alkyne terminus rather than a hydrostannylation of the C-C triple bond. The scope of this direct C(sp)-H bond stannylation with hydrostannanes is broad.
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proposed mechanism
Key Words
ID: J48-Y2018
