A New Synthesis of Arylacetic Esters Starting from Aromatic Aldehyde by the Use of Methyl (Methylthio)methyl Sulfoxide
作者:Katsuyuki Ogura、Yoko Ito、Gen-ichi Tsughihashi
DOI:10.1246/bcsj.52.2013
日期:1979.7
Methyl (methylthio) methyl sulfoxide was found to react with benzaldehyde in the presence of benzyl tri-methylammonium hydroxide (Triton B), sodium hydroxide, or potassium hydroxide, affording 1-(methylsulfinyl)1-(methylthio)-2-phenylethylene. Treatment of this product with hydrogen chloride in an alcohol gave the corresponding alkyl phenylacetate in high yield. The whole reaction sequence provides
发现甲基(甲硫基)甲基亚砜在苄基三甲基氢氧化铵(Triton B)、氢氧化钠或氢氧化钾的存在下与苯甲醛反应,得到 1-(甲基亚磺酰基)1-(甲硫基)-2-苯基乙烯。在醇中用氯化氢处理该产物以高产率得到相应的苯基乙酸烷基酯。整个反应序列为以苯甲醛为原料合成苯乙酸酯提供了一种新方法。以类似的方式,(烷氧基-、卤素-或烷基-取代的苯基)乙酸酯可以由相应的芳族醛合成。本方法显示也适用于(2-噻吩基)乙酸酯的生产。