质量保证

Dimethyl carbonate was used as the methylating reagent, o-vanillin as the material and K2CO3 as the catalyzer to synthesize oV. The effect of material ratio, reaction time, reaction temperature and catalyzer dosage on its synthesis reaction was investigated.

方法］采用碳酸二甲酯作为甲基化试剂，以邻位香兰素为原料，无水碳酸钾为催化剂，合成邻藜芦醛，研究物料配比、反应时间、反应温度和催化剂量对反应的影响。

With the opening and progress of the economic social ,the group of women enterpriser is growing up ,which attract more and more advertence of people .the research of feminine problem in China is often staying at the right of women and children ,but today , many new problem is appearing , it is a new chance and challenge to our research, and it is a gratifying and important change .

国内对于女性问题的研究原先多停留于保护妇女儿童的权益这一层面，新时代涌现的问题更新更广更复杂，给女性问题研究带来了新的契机、提出了新的要求，从传统的"维·权问题"到今天的丰富复杂的女企业家问题研究，充分体现了女性社会和经济地位的提高，女性角色多元化的转变。