2 research outputs found
Synthesis of SiCl<sub>4</sub> via the Chloride Salt-Catalyzed Reaction of Orthosilicates with SOCl<sub>2</sub>
This paper details a method to chlorinate
tetraalkyl orthosilicates
in the presence of a catalyst using SOCl<sub>2</sub> as the chloride
source/deoxygenating agent. Several inexpensive catalysts were screened,
and it was found that soluble chloride salts performed better than
Lewis base catalysts. The optimized reaction employed a widely used
and commercially available soluble chloride salt catalyst (e.g., NBu<sub>4</sub>Cl, 0.4 equiv), 16 equiv of SOCl<sub>2</sub>, and afforded
quantitative yield of SiCl<sub>4</sub> after 3 h. As the bulk of the
orthosilicate substrate increased, the yield of SiCl<sub>4</sub> decreased.
A reaction mechanism has been proposed
Synthesis of SiCl<sub>4</sub> via the Chloride Salt-Catalyzed Reaction of Orthosilicates with SOCl<sub>2</sub>
This paper details a method to chlorinate
tetraalkyl orthosilicates
in the presence of a catalyst using SOCl<sub>2</sub> as the chloride
source/deoxygenating agent. Several inexpensive catalysts were screened,
and it was found that soluble chloride salts performed better than
Lewis base catalysts. The optimized reaction employed a widely used
and commercially available soluble chloride salt catalyst (e.g., NBu<sub>4</sub>Cl, 0.4 equiv), 16 equiv of SOCl<sub>2</sub>, and afforded
quantitative yield of SiCl<sub>4</sub> after 3 h. As the bulk of the
orthosilicate substrate increased, the yield of SiCl<sub>4</sub> decreased.
A reaction mechanism has been proposed