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. ... The ω-silyloxypropargyltrimethylsilanes regiospecifically react with aliphatic and aromatic aldehydes to lead to vinylidene oxygen-containing heterocycles,such as 3-vinylidene oxolanes, oxanes, oxepanes and oxocanes. ... Les ω-silyloxypropargyltriméthylsilanes agissent de ...