The synthesis of methylated ether compounds is an important challenge. A pathway for the synthesis of methyl ethers was investigated using dimethyl sulfite (DMSi). Methylation of 1-octanol was carried out in liquid phase upon different heterogeneous organic and inorganic catalysts at 130 °C. Aluminium oxide gave the best result with high conversion and moderate selectivity for methyl 1-octyl ether. Reactions in gas phase at higher temperatures (200 °C) were also performed. Methyl 1-octyl ether was obtained in a very high level of selectivity up to 98%. Primary and secondary ethers from unsymmetrical alkyl methyl sulfite were also performed by SO₂ extrusion.

中文翻译：

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亚硫酸二甲酯潜在的甲基化剂

甲基化醚化合物的合成是一个重要的挑战。研究了使用亚硫酸二甲酯（DMSi）合成甲基醚的途径。1-辛醇的甲基化反应是在130°C下在不同的非均相有机和无机催化剂上进行的。氧化铝以最高的转化率和对甲基1-辛基醚的中等选择性给出了最佳结果。还进行了在较高温度（200°C）下的气相反应。以高达98％的非常高的选择性获得甲基1-辛基醚。来自不对称烷基甲基亚硫酸盐的伯和仲醚也通过SO ₂挤出进行。