-dimethoxy-的意思|示意

Two steps lead to the formation of benzodioxoles: firstly, and most importantly the synthesis of 2,2-dimethoxy propane; secondly, the exchanging reaction of 2,2-dimethoxypropane and pyrogallol.

苯并二（口恶）茂的合成分二步进行，第一步合成2，2-二甲氧基丙烷，第二步是2，2-二甲氧基丙烷与焦性没食子酸的交换反应。

Study on Synthesis, Structure and Reaction ofa New Compound 2, 3 - Methylene - 5, 8 - Dimethoxy Naphthalene.

新化合物2,3—亚甲基—5,8—二甲氧基萘的合成、结构及反应的研究。

A new process has been developed to synthesize dimethoxy methyl acetoacetate with dimethoxyacetic acid methyl ester and methyl acetate in the presence of sodium methanol.

以二甲氧基乙酸甲酷和乙酸甲酷为主要原料，经甲醇钠催化制备二甲氧基乙酞乙酸甲醋。

With cyclohexyl methyl dimethoxy silane(CHMMS) as external donor, isotacticity of polymer turned to be more adjustable.

结果表明，使用环己基- 甲基-二甲氧基硅烷，聚合物的等规度可调性好；

Conclusion 3, 4-dimethoxy bornyl benzoate is hydrophilic. The result will supply evidence for the further research of 3, 4-dimethoxy bornyl benzoate.

结论3,4 -二甲氧基苯甲酸冰片酯为亲脂性化合物，该实验结果可为3,4 -二甲氧基苯甲酸冰片酯进一步的研究提供依据。

All - E long chain part was synthesized from solanesol, then condensed with the reductive product of 2,3 - dimethoxy - 5 - methyl -1,4- benzoquinone in the presence of dry ZnCl2.

首先以茄尼醇合成全反式侧链四十碳十烯-1-醇，再和2，3-二甲氧基-5-甲基-1，4-苯醌的还原产物在无水氯化锌存在下缩合。