tetrabutyl ammonium fluoride in N,N,N',N',N'',N''-hexamethylphosphoric triamide tetrabutylammonium fluoride was added to an HMPA solution of octatmethyltrisilane and butadiene;

tetrabutyl ammonium fluoride in N,N,N',N',N'',N''-hexamethylphosphoric triamide octamethyltrisilane added to an HMPA solution of butadiene and tetrabutylammonium fluoride;