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- METHODS The hydroxyl groups of magnolol were protected using ketol reaction and the products were purified by recrystallization from hexane. 方法将厚朴酚两羟基用缩酮保护,再用正己烷重结晶分离纯化。
- Keywords niobic acid;catalysis;ketol reaction; 铌酸;催化;缩酮反应;
- Keywords Strongly acidic cation exchange resin;Ketol reaction;Cyclohexanone; 强酸性阳离子交换树脂;缩酮反应;环已酮;
- Keywords cation exchange resin;ferrate trichloride;ketol reaction;cyclohexanone;ethylene glycol; 阳离子交换树脂;三氯化铁;缩酮;环己酮;乙二醇;
- Keywords ammonium ferric sulfate;ultrasound irradiation;microwave irradiation;ketol reaction; 十二水合硫酸铁铵;超声波;微波;缩酮反应;
- Could I ask for your reaction to this policy? 我能问一下您对这个政策的反应吗?
- A reactor is a container for chemical reaction. 反应器是进行化学反应的容器。
- I'm displeased at your reaction. 我对你的反应很不满意。
- The forces of reaction made reform difficult. 反动势力给改革造成了困难。
- His reaction on this matter is unexpected. 没料到,他对这件事的反应是这样的。
- A sharp reaction; a repercussion. 强烈反应后果,影响
- Their reaction was one of qualified praise. 他们的反应是一种有保留的称赞。
- His initial reaction was one of shock. 他最初的反应是震惊。
- The reaction of the audience was instantaneous. 观众即刻有了反应。
- What was his reaction to the plan? 他对这个计划有什么反应?
- The medicine produced a violent reaction. 这药物引起了剧烈的反应。
- My reaction will be to partake in the speech competition. 我的看法倒是要参加这次演说比赛。
- What was his reaction to the news? 他对这消息的反应如何?
- His reaction of swiftness surprised us. 他快速的反应能力让我们吃了一惊。
- I had a bad reaction after my typhoid injection. 我注射了伤寒针剂后产生了不良反应。