selectively formed in the presence of silica gel with acetyl chloride by refluxing a suspension of unsymmetrical diols containing a primary hydroxyl group such as 1,5-hexanediol preadsorbed on silica gel. Such regioselectivity was observed through preferential adsorption via a primary hydroxyl group of the diols. Copyright © 2003 John Wiley & Sons, Ltd.
在
硅胶与
乙酰氯的存在下,通过回流预吸附在
硅胶上的含伯羟基的不对称二醇(如
1,5-己二醇)的悬浮液,选择性地形成受阻更大的单
乙酸酯。通过经由二醇的伯羟基的优先吸附观察到这种区域选择性。版权所有©2003 John Wiley&Sons,Ltd.