Abstract Application of the SNAr reaction on benzenediols with arylfluorides revealed an enhancement in monosubstitution selectivity over bis substitution when excess base was used. This trend was studied using symmetrical and nonsymmetrical benzenediols with various levels of steric hindrance. The effect of various bases was examined. A 100% monoselectivity was achieved in the presence of 2.5 equiv
摘要 SNAr 反应对含芳基
氟化物的苯二醇的应用表明,当使用过量碱时,单取代选择性优于双取代。使用具有各种空间位阻
水平的对称和非对称苯二醇研究了这种趋势。检查了各种碱的作用。在 2.5 当量的存在下实现了 100% 的单选择性。Cs2CO3。该方法用于合成一种重要的药物产品 1,一种芳醚。