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关键词： 有机化学   生活   应用领域   广泛现状  

摘要： 我们的生活离不开有机化学,有机化学就在我们身边,有机化学的研究领域涉及到生活的方方面面。日常生活中有机化学得到了广泛的应用,在食品领域、环境领域、医药领域和材料领域,运用学过的有机化学知识就可以将有关问题迎刃而解,为人们的生产生活带来了便利,其重要性不言而喻。本文重点探讨了有机化学在生活中的广泛应用。

关键词： 有机化学   基础化学实验   教学改革  

摘要： 有机化学是农业性院校中最重要的基础课之一,其教学和基础实验课紧密联系,相关内容在理论课实验课内容相互对应。本文介绍有机化学和基础实验的现行状况,针对在教学与实验中存在的问题,探讨了通过最新研究成果来提升教学质量和教学兴趣的改革方法,提出了改革的新思路:从根本上转变教学观念和教学方法;完善考核机制;有机化学和基础化学实验应两头兼顾,相互促进。希望这些改进教学方法能提高教学质量,提高有机化学整体教学水平,推动有机化学教学进程。

关键词： 有机化学   教学改革   课堂教学  

摘要： 学时锐减,给医学生有机化学理论课教学带来新的问题。为保证教学质量,亟须进行教学探索与改革来解决这些问题。针对医学生36学时的有机化学课程,文章主要讨论了在课程内容的优化、课堂教学的组织以及教师和学生在课外需下的功夫等方面所做的探索与实践,以期为今后的教学工作提供新的思路和方法。

关键词： 有机化学   合成   3-氨基呋咱-4-羧酸   表征  

摘要： 以氰乙酰胺为起始原料,经亚硝化、加成、环化得到标题化合物,并利用红外光谱、核磁共振、质谱、元素分析等鉴定了产物结构。初步探讨了环化反应过程,确定反应的最适宜条件为:采用冰醋酸为亚硝化反应的最佳催化剂,产率高达96%;加成反应中最佳投料比为n(2-肟基氰乙酰胺)∶n(盐酸羟胺)=1∶3,产率可达95%;环化反应反应时间为4 h,反应温度为65~70℃,产率为62%。研究表明,该方法具有能耗低、操作简便、收率高的优点。

关键词： SUBSTITUTED BENZOTHIAZOLES   HIGHLY EFFICIENT   DEOXYGENATION   CLEAVAGE   POLYMETHYLHYDROSILOXANE   BENZIMIDAZOLES   BENZOXAZOLES   DERIVATIVES   SECONDARY   AROYLBENZOTRIAZOLES  

摘要： The utility and advantages of benzotriazole methodology have been described for the practical synthesis of benzothiazoles. The two-step synthetic procedure includes nucleophilic acyl substitution followed by benzotriazole ring cleavage under the free radical condition and subsequent cyclization via elimination of molecular nitrogen (N-2). This protocol requires cheap and readily available reagents, and moreover easy to handle, thus can be used to teach undergraduate and postgraduate students about the importance of benzotriazole moiety in organic synthesis, ring cleavage chemistry, cyclization reactions, and use of industrial waste in free radical reactions. Students can also learn some important and common techniques useful in organic chemistry such as monitoring of organic reaction using thin-layer chromatography and UV, microwave (MW) technique for the synthesis, and column chromatography for the product isolation and structure determination through NMR, MS, and IR spectral analysis of the pure compounds.

ISBN: (纸本)9787564182960

关键词： High School/Introductory Chemistry   Organic Chemistry  

摘要： Stepped supporting tools were developed and used in the university seminar Organic Chemistry taken by nonmajor chemistry students, which supported self-regulated learning. These supporting tools were also used for accompanying homework, which included a QR code that led to additional supporting tools. The application of stepped supporting tools in the seminars was evaluated by a four-item Likert scale. The students assessed the tools as a helpful instrument for solving tasks in chemistry.

关键词： First-Year Undergraduate/General   Laboratory Instruction   Organic Chemistry   Green Chemistry   Laboratory Equipment/Apparatus   Hands-On Learning/Manipulatives  

摘要： A low-cost and easy-to-use water recirculation system for a condenser apparatus was designed and installed in an organic chemistry teaching laboratory. Relying on gravity and a small pump for water circulation, it supplies four stations simultaneously. The water recirculation system works very well with condensers used for distillation and reflux reactions, as well as with rotary evaporators. This innovative idea has led to an annual water savings of more than 14 400 L while running only 2 lab periods per week with up to 24 students per period. Its low cost and easy installation make it convenient and easily adoptable by any laboratory where the waste of water from condensers needs to be addressed, especially in places where water scarcity is already hindering such significant scientific activities.

关键词： 课堂派   留学生   混合式教学   有机化学  

摘要： 在"互联网+教育"的背景下,混合式教学法在高校教学实践中广泛应用。随着我校留学生教育的迅速发展,针对课程教学的现状,结合学生生源特点,对课程进行改革实践。本文将由课堂派、互动式教学法组成的混合式教学法引入传统课堂,结合留学生活泼、善于表达、乐于参与教学的特点,引导学生自主学习。初步实践证明,丰富的教学内容、多样的教学方法,极大地激发了学生的学习兴趣,提高了教学质量。