Arylalkylamines (as a sulfate salt) e.g. tyramine sulfate, are prepared by reacting substituted or unsubstituted arylalkylketones with a lower alkylnitrite in the presence of hydrogen chloride in a dipolar aprotic solvent, then combining the reaction mixture with water and extracting it with a lower alkyl ester or alcohol to recover an aryl-.alpha.-oximinoalkylketone extract. The extract, combined with a supported hydrogenation catalyst (e.g. palladium on carbon) in a nonaqueous reaction medium of a major proportion of a mildly protic carboxylic acid (e.g. acetic acid) and a minor proportion of a strong inorganic acid (e.g. sulfuric acid), which is effective in the presence of the catalyst for secondary alcohol dehydration and active as an absorbant for water produced in the dehydration reaction, is hydrogenated to produce the arylalkylamine sulfate sale.
芳基烷基胺(作为
硫酸盐)例如
酪胺硫酸盐,是通过在双极性无质子溶剂中,在氢
氯酸的存在下,将取代或未取代的芳基烷基酮与较低的烷基
亚硝酸盐反应,然后将反应混合物与
水混合,并用较低的烷基酯或醇提取它以回收芳基-α-
肟基烷基酮
提取物制备的。将
提取物与支持的氢化催化剂(例如碳上的
钯)结合在非
水反应介质中,该介质包括主要比例的温和质子性
羧酸(例如
乙酸)和少量强
无机酸(例如
硫酸),对于二级醇脱
水反应具有有效的催化作用,并且作为脱
水反应中产生的
水的吸收剂,经过氢化反应,产生芳基烷基胺
硫酸盐的销售。