Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... In the presence of magnesium and in hexamethylphosphoric triamide (HMPT), trimethylchlorosilane reacts with 2,6-dimethyl-2,4,6-octatriene to lead only to one disilylated derivative with 1,4-addition of trimethylsilyl groups. ... Silylation of dienes has been especially worked out with ...