Regio- and stereoselective hydrosilylation of immobilized terminal alkynes
作者:Palle J. Pedersen、Jonas Henriksen、Charlotte H. Gotfredsen、Mads H. Clausen
DOI:10.1016/j.tetlet.2008.08.043
日期:2008.10
Regio- and stereoselective hydrosilylation of terminalalkynes on solid support using diisopropyl hydrosilanes yielding β-(E)-vinyl silanes with excellent selectivity is reported. The hydrosilylation is catalyzed by Pt(DVDS)/P(iBuNCH2CH2)3N (DVDS = 1,3-divinyl-1,1,3,3-tetramethyl-disiloxane), in which the bulky proazaphosphatrane ligand plays a key role for the selectivity. The immobilized products