Thus , this reduced temperature of reaction and increased the rate of acetophenone.降低反应温度,提高了苯乙酮的收率.Objective: A new approach to prepare α - bromo - 4 - benzyloxy acetophenone was introduced.目的: 报道一种合成α - 溴-4-苄氧苯基乙酮的新方法....
Methods: α - Bromo - 4 - benzyloxy acetophenone is synthesized with 4 - hydroxy acetophenone and bromonium as materials and methanol as solvent.方法: 以甲醇为溶剂,以对羟基苯乙酮和溴为原料制备了α - 溴-4-苄氧苯基苯乙酮.Thus , this reduced temperature of...
这儿的医疗体制使问题进一步恶化。The problem is compounded by the medical system here.她保留了许多副本以便作进一步的注解。She retained a number of copies for further annotation.在与别人一起工作的过程中，你会进一步认识你自己。In working with others, you find out more about yourse...
鼓吹可解决失业问题的妙策.Some nostrum peddled as a cure for unemployment.尼克松相信他对最后竞选动动袖中藏有一些妙策.Nixon believes he has some aces up his sleeve for his final campaign....