Alonso, Francisco, Buitrago Sierra, Robison, Moglie, Yanina, Sepúlveda-Escribano, Antonio, Yus, Miguel
Selective hydrosilylation of 1,3-diynes catalyzed by titania-supported platinum
ALONSO, Francisco, et al. "Selective hydrosilylation of 1,3-diynes catalyzed by titania-supported platinum". Organometallics. Vol. 31, No. 6 (2012). ISSN 0276-7333, pp. 2336-2342
URI: http://hdl.handle.net/10045/22202
DOI: 10.1021/om201274v
ISSN: 0276-7333 (Print)
Abstract: 
Titania-supported platinum (mainly as Pt(II)) has been found to effectively catalyze the hydrosilylation of 1,3-diynes at 70 °C with low catalyst loading (0.25 mol %) under solvent-free conditions. Monohydrosilylation was achieved for diaryl-substituted diynes, whereas dialkyl-substituted diynes were transformed into the corresponding dihydrosilylated products in good yields. In every case, the process was proven to be highly stereoselective, with syn addition of the silicon–hydrogen bond, and regioselective, with the silicon moiety exclusively bonded to the most internal carbon atom of the 1,3-diyne (β-E product), as confirmed by X-ray crystallography.
Keywords:Titania-supported platinum, Hydrosilylation, Catalyst
American Chemical Society
info:eu-repo/semantics/article