A new and efficient route for the synthesis of alkynyl functionalized silicon derivatives
                                
                                    
                                        作者:Ireneusz Kownacki、Bartosz Orwat、Bogdan Marciniec、Agnieszka Kownacka                                    
                                    
                                        DOI:10.1016/j.tetlet.2013.11.103
                                    
                                    
                                        日期:2014.1
                                    
                                    The iridium-based catalytic system, [Ir(mu-Cl)(CO)(2)}(2)]/NEt(i-Pr)(2), was examined in the coupling reaction of iodotrisubstituted silanes (R3SiI) with various terminal arylalkynes ((RC)-C-1  CH). Under optimum conditions, the process occurs very efficiently (in particular for Me3SiI and Me2PhSiI), giving exclusively the respective C-sp-silyl functionalized alkynes ((RC)-C-1  CSiR3). Additionally, this iridium-based catalytic system was successfully used for the preparation of selected bis(phenylethynyl) disubstituted silanes [(R2Si)-Si-2(C  CPh)(2)] via coupling of phenylacetylene with appropriate diiodo-disubstituted silanes ((R2SiI2)-Si-2). (C) 2013 Elsevier Ltd. All rights reserved.