dimethoxy 二甲氧基
o-dimethoxy benzene 邻二甲氧基苯
Dimethoxy-propanenitrile 氰基乙醛缩二甲醇
dimethoxy- 二甲氧基
Dimethoxy-octane 二甲氧基辛烷
dimethoxy trityl chloride 二对甲氧三苯甲基氯
dimethoxy strychnine 二甲氧基番木虌碱
dimethoxy-ethane [有化] 二甲氧基乙烷
Dimethoxy-2-nitroethane 硝基乙醛缩二甲醇
Results A new benzophenone was isolated and identified as 2-methoxy-3,4-methylenedioxy-benzophenone (I), along with a known compound 4-hydroxy-2,6-dimethoxy-benzophenone (II).
结果分离鉴定了2个二苯酮化合物，其结构分别为2 甲氧基- 3， 4 -亚甲二氧基-二苯酮（I）， 4 羟基-2， 6 -二甲氧基-二苯酮（II）。
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。
The five quinazoline compounds were prepared by using 2 amino 4,5 dimethoxy benzoic acid as original material, which underwent ring closing, halogenation and substitution.
方法：以2 氨基4 ，5 二甲氧基苯甲酸为原料，分别经过环化、氯代、取代等反应，合成了五种目标化合物。
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