Synthesis and Structural Determination in the General Chemistry Laboratory

为普通化学实验室提供了一个演示合成、成键和结构的新实验。本实验将利用结构测定的现代仪器方法，以适合新生的水平来呈现这些概念。学生将在香兰素上进行一系列微型反应，包括醛的氧化和还原、芳香环的溴化和苯酚的酯化。反应物和产物都将用气相色谱-质谱仪和红外光谱进行分析。这项实验将提供一个更平衡的化学观点，并提供进入化学专业的另一个切入点，从而服务于大一班级的每一名学生。

A new experiment illustrating synthesis, bonding, and structure is proposed for the general chemistry laboratory. This experiment will take advantage of modern instrumental methods of structural determination to present these concepts at a level appropriate for freshmen. Students will run a series of microscale reactions on vanillin, involving oxidation and reduction of the aldehyde, bromination of the aromatic ring, and esterification of the phenol. Both reactants and products will be analyzed by gas chromatography-mass spectrometry and infrared spectrophotometry. This experiment would serve every student in the freshman class by affording a more balanced view of chemistry and providing an alternative entry point into the chemistry major.