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- METHODS Phase-transfer catalytic methylation and suitable method of aftertreatment were used.RESULTS The yield and content was both improved. 结果：反应主要控制在单甲基化阶段，且通过适当的后处理方法，可得产物含量较高的固体纯品。
- CONCLUSION Phase-transfer catalytic methylation was the best method, and suitable method of aftertreatment was essential. 结论：相转移催化剂能有效控制反应在单甲基化阶段，且合适的后处理方法也能一定程度提高产品质量。
- catalytic methylation 催化甲基化
- Allene is an isomer of methyl acetylene. 丙二烯是甲基乙炔的一种异构体。
- It is known as catalytic cracking. 这就是所谓的催化裂化。
- Methylation of chromatin causes it to condense. 染色质甲基化后会出现凝缩。
- The mechanism of methylation reaction is discussed. 对甲基化反应机理进行了讨论.
- Construction of methyl alcohol production project. 甲醇生产项目建设。
- Produced from lauryl alcohol and methyl laurate. 以硬酯醇及甲基棕榈。
- Produced from stearyl alcohol and methyl behenate. 可按客户要求生产。
- Produced from stearyl alcohol and methyl palmitate. 以硬酯醇及甲基二十二。
- To combine with the methyl radical. 使甲基化使与甲基根结合
- Many other important catalytic parameters were deduced. 可以推导出很多其它重要的催化参数。
- Methyl silicone oil polysulfonate drilling fluid. 产。甲基硅油聚磺高密度钻井液。
- The dimethylbenzenes are obtained from catalytic reformate. 二甲苯可从催化重整得到。
- CMC Sodium carboxy methyl cellulose (pharma. 羧甲基纤维素钠(药用)
- CMS Sodium carboxy methyl starch (pharma. 羧甲基淀粉钠(药用)
- But what happens if the methyl defense falters? 如果说这种甲基防御出了问题,又会发生什么事呢？
- All vehicles come with a catalytic converter as standard. 所有汽车售出时通常都配有催化式排气净化器。
- The bis(S)-Naproxen methyl ester is(+)-enantiomer. 对其代谢过程作了初步探讨。
