These techniques may be an alternative approach for improving the properties of liquid crystal other than chemical synthesis. 这种技术可能是不需要进行化学分析来提高液晶材料性能的备选方案。
Steroid hormones& ⅱ. alternative route to the synthesis of 9 α-fluoro-corticoids 甾体激素Ⅱ.9α-氟副肾皮质激素的新合成路线
As alternative energy resources and raw chemicals, the higher alcohols synthesis from syngas via CO hydrogenation was extensively studied. 低碳混合醇是重要的化工原料和能源替代品,自上世纪以来,对低碳醇合成进行了广泛的研究。
IL is not only toxic volatile solvent ideal alternative, but also contributes much in speeding up the reaction rate, increasing the yield and product selectivity. Therefore IL is widely used in engineering technology, organic synthesis, material science and other fields. 离子液体不仅是有毒挥发性溶剂的理想替代品,而且在加快反应速率、提高产率和产物选择性方面也大有作为,因此在工程技术、有机合成、材料科学等领域获得广泛应用。
This dissertation mainly aims at the design and development of some strategies in the synthetic studies of morphine. Focusing on this issue, the target-oriented methodology was investigated, providing the alternative way to the formal synthesis of morphine. 本论文主要围绕吗啡生物碱的合成研究,通过若干合成策略的设计,对一些新颖的合成方法进行了目标导向的合成应用探讨,为此类生物碱的形式合成研究提供了不同的途径。