One‐pot synthesis of 2‐amino‐4,8‐dihydropyrano[3,2‐b]pyranes and pyridopyrimidines under mild conditions
作者:Fatemeh Rigi、Hamid Reza Shaterian
DOI:10.1002/jccs.201800048
日期:2019.4
was applied for the one‐pot, three‐component synthesis of 2‐amino‐4,8‐dihydropyrano[3,2‐b]pyrane‐3‐carbonitriles and pyridopyrimidines, under solvent‐free conditions. The reaction was carried out at room temperature, and pure products were obtained in high yields and short reaction times (3–7 min). This work introduced an environmentally benign procedure for the synthesis of these classes of biological
固定在二氧化硅(SB-DBU)Cl上的1,8-二氮杂双环[5.4.0]十一碳-7-烯作为可重复使用的非均相催化剂被用于2-氨基-4,8的一锅,三组分合成无溶剂条件下的二氢吡喃并[3,2-b]吡喃-3-腈和吡啶并嘧啶。该反应在室温下进行,以高收率和较短的反应时间(3-7分钟)获得了纯净的产物。这项工作为合成这类生物活性化合物引入了一种环境友好的程序。