47143-63-5Relevant academic research and scientific papers
Phenylboration of monoalkyn-1-yltin compounds
Wrackmeyer, Bernd,Tok, Oleg L.,Milius, Wolfgang
, p. 1509 - 1513 (2008/10/09)
The 1: 1 reactions of triphenylborane 1 with monoalkyn-1-yltin compounds Me3Sn-C≡C-R1 2 [R1 = 1Bu (a), Ph (b), ferrocenyl (c), Si(H)Me2 (d), SnMe3 (e)] afford mainly (> 80%) the corresponding alkene derivatives 3 by 1,1-phenylboration. Exchange B-Ph/Sn-C≡C-R1 takes place as a side reaction. The corresponding 1: 2 reaction with 2b leads to the dialkenylborane 4b (R 1 = Ph), of which the molecular structure could be determined by X-ray analysis. In contrast, the 1:2 reaction with 2e gave an aliene derivative 5e. The solution-state structures of compounds 3-5 have been confirmed by 1H, 11B, 13C and 119Sn NMR spectroscopy.
