This paper details a method to chlorinate tetraalkyl orthosilicates in the presence of a catalyst using SOCl₂ 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 optimal reaction employed a widely used and commercially available soluble chloride salt catalyst (e.g. NBu₄Cl, 0.4 equiv), 16 equiv of SOCl₂, and afforded quantitative yield of SiCl₄ after three hours. As the bulk of the orthosilicate substrate increased, the yield of SiCl₄ decreased. A reaction mechanism has been proposed.

中文翻译：

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氯硅酸盐与原硅酸盐与SOCl ₂的氯盐催化反应合成SiCl ₄

本文详细介绍了一种在催化剂存在下使用SOCl ₂作为氯化物源/脱氧剂对原硅酸四烷基酯进行氯化的方法。筛选了几种廉价的催化剂，发现可溶性氯化物盐的性能优于路易斯碱催化剂。最佳反应采用了广泛使用的可商购的可溶性氯化物盐催化剂（例如NBu ₄ Cl，0.4当量），16当量的SOCl ₂，三小时后定量得到了SiCl ₄。随着原硅酸盐衬底的体积增加，SiCl ₄的产率降低。已经提出了反应机理。