Silica Chloride (SiO<sub>2</sub>-Cl) and Trimethylsilyl Chloride (TMSCl) Promote Facile and Efficient Dehydration of Tertiary Alcohols
作者:Habib Firouzabadi、Naser Iranpoor、Hassan Hazarkhani、Babak Karimi
DOI:10.1081/scc-120025173
日期:2003.11
Abstract Silica chloride (SiO2-Cl), as a heterogeneous reagent, has been used for the efficient dehydration of tertiary alcohols under mild reaction conditions. For comparison, we have also used trimethylsilyl chloride (TMSCl) as a homogeneous reagent for this purpose. We have found that silica chloride is a more efficient reagnet than trimethylsilyl chloride for this purpose. Handling of SiO2-Cl is
摘要 氯化硅 (SiO2-Cl) 作为一种非均相试剂,已被用于在温和的反应条件下有效地脱水叔醇。为了进行比较,我们还使用三甲基氯硅烷 (TMSCl) 作为均相试剂用于此目的。我们已经发现,为此目的,氯化硅是比三甲基氯硅烷更有效的反应物。处理 SiO2-Cl 比 TMSCl 更安全、更容易,特别是对于大规模操作。几种竞争反应也证明了该方法的选择性。在反应中没有观察到醚形成、重排产物和聚合反应。