3,14-Dioxa-8,9-dithia-4,13-disilahexadecane, 4,4,13,13-tetraethoxy- → 3,15-Dioxa-8,9,10-trithia-4,14-disilaheptadecane, 4,4,14,14-tetraethoxy-

Participants

Reaction Steps

47.5 g of bis-[γ-(triethoxysilyl)-propyl]-disulfide (0.1 mole) was heated together with 3.2 g of sulfur (0.1 mole) under a nitrogen gas atmosphere for about 15 hours at about 150°C, until all of the sulfur had dissolved and did not crystallize out again upon cooling. A dark red liquid was formed, which a thin-layer chromatogram showed to contain no free sulfur, and in which disulfides and tetrasulfides are dissolved as shown by mass spectrographic analysis.

Provenance & Evidence