二甲基吡嗪与苯乙酸，硝酸银和过硫酸铵反应。
Dimethylpyrazine reacted with phenylacetic acid, silver nitrate and ammonium persulfate.
根据酯在碱性条件下水解反应生成醚的原理，研究了以甲基硫酸钠废渣为原料制备二甲基硫醚的方法。
Based on the principle of ester hydrolyzation to ether in alkali condition, the process for preparation of dimethyl sulfide from sodium methyl sulfate residue was investigated.
结果表明，十六烷基二甲基（2-亚硫酸）乙基铵具有较好的生物降解性，与常用阻垢缓蚀剂复配有协同增效作用。
The experimental result showed that hexadecylldimethyl(2-sulfite)ethyl ammonium had good biodegradability and synergistic effect by mixing with scale and corrosion inhibitor.
以1，3-二甲基金刚烷为原料，经溴化、乙腈和硫酸的作用下乙酰胺基化、水解、成盐等反应及改进的后处理方法得到盐酸美金刚，总收率6 7。8%。
Memantine hydrochloride was synthesized from 1,3 dimethyladamantane by bromination, acetamidation with acetonitrile in sulfuric acid and hydrolysis with an overall yield of 67.8%.
以1，3-二甲基金刚烷为原料，经溴化、乙腈和硫酸的作用下乙酰胺基化、水解、成盐等反应及改进的后处理方法得到盐酸美金刚，总收率6 7。8%。
Memantine hydrochloride was synthesized from 1,3 dimethyladamantane by bromination, acetamidation with acetonitrile in sulfuric acid and hydrolysis with an overall yield of 67.8%.
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