英汉词典

1.Sulfuric acid dimethyl ester, one of the important chemical raw materials ACTS as the methylating agent in the organic synthesis for the purpose of replacing alkyl halide.

硫酸二甲酯是一种重要的化工原料，在有机合成中用于代替卤代烷作为甲基化剂。

2.Sulfuric acid dimethyl ester, one of the important chemical raw materials ACTS as the methylating agent in the organic synthesis for the purpose of replacing alkyl halide.

硫酸二甲酯是一种重要的化工原料，在有机合成中用于代替卤代烷作为甲基化剂。

3.A byproduct in the methylating reaction was separated, purified and determined to be of the dimethylated product for the first time.

首次分离、纯化了甲基化反应的重要副产物，经元素分析、氢谱、质谱确定为双甲基化产物。

4.Finally, methylating agent attacks sulfide in assemblage to cleavage carbon - sulfur bond.

最后，甲基化试剂再进攻集合物中的硫醚，从而导致碳硫键的断裂。