Magnesium Hydrogensulfate [Mg(HSO<sub>4</sub>)<sub>2</sub>] as an Efficient Catalyst for the Preparation of Silyl Ethers, Dibenzo[a,j]xanthenes, and Octahydroxanthene Derivatives
作者:Hamid Reza Shaterian、Razieh Doostmohammadi、Fahimeh Khorami、Majid Ghashang
DOI:10.1080/10426500902758329
日期:2009.12.29
Magnesium hydrogensulfate [Mg(HSO4)(2)], as a heterogeneous solid acid catalyst, has been used for the mild formation of trimethylsilyl (TMS) ethers from various primary, secondary, and tertiary aliphatic alcohols; aromatic alcohols; and oximes using hexamethyldisilazane (HMDS) under ambient conditions. In addition, 14-aryl-14H-dibenzo[a,j]xanthenes and 1,8-dioxo- octahydroxanthene derivatives were synthesized in the presence of Mg(HSO4)(2) with short reaction times in high to excellent yield under solvent-free conditions.