Intramolecular Oxa-Mannich Reaction of 1,3-Dihydro-2-benzofuran-1-ol for Efficient Synthesis of 1-Aminophthalan Derivatives
作者:Kim, Heebum、Kim, Sung-Gon
DOI:10.5012/jkcs.2022.66.1.9
日期:——
An efficient method for the synthesis of 1-aminophthalans has been developed. The intramolecular oxa-Mannich reaction of 1,3-dihydro-2-benzofuran-1-ols with p-toluenesulfonylamine in the presence of Cs2CO3 as a base, without using any catalyst, provided the desired 1-aminophthalans in moderate to good yields.
一种合成1-氨基邻苯二甲酸酯的高效方法已经开发出来。在Cs2CO3作为碱存在的情况下,1,3-二氢-2-苯并呋喃-1-醇与对甲苯磺酰胺的分子内氧杂曼尼希反应无需使用任何催化剂,即可以中等至良好的收率提供所需的1-氨基邻苯二甲酸酯。