一水硫酸氢钠在有机合成中的应用

Application of sodium bisulfate monohydrate in organic synthesis

硫酸氢钠是有机合成中能够代替硫酸的一种好的固体酸催化剂.介绍了一水硫酸氢钠在合成环已烯、二氧六环、β-萘甲醚、β-萘乙醚、酯、缩醛(酮)、蔗糖水解和紫罗兰酮合成中的应用.

Abstract： A chistosan-carbon paste modified electrode was fabricated by the mixing of chistosan, graphite powder, and paraffine at the appropriate ratios. The obtained modified electrode showed favorable acceleration for the electroreactions of iodide ions. The anodic stripping voltammetric character of iodide ions on the electrode was studied detailedly, and also the relative mechanism was discussed. Under the optimized conditions, the modified electrode displayed sensitive voltammetric responses as well as good selective adsorption of iodide ions in 0.1 mol/L KCl solution （pH 4.5）. The anodic stripping peak currents were in linear with the iodide ion concentrations in the range of 5.0 × 10^-6—2.0 × 10^-3 mol/L with a detection limit of 2.0×10^-7 mol/L. The modified electrode was applied to determine the iodide ions in iodine with satisfied results. The sample was tested seven times,and the relatively standard deviation （RSD） and recovery ratio range were 4.3% and 94.5% -100.2%, respectively.