作者:R. John Booth、John C. Hodges
DOI:10.1021/ja9634637
日期:1997.5.1
tris(2-aminoethyl)amine and methyl isocyanate are described. These polymeric reagents are used to quench excess reactants and remove known impurities from the crude reaction products obtained from the solution-phase, parallel syntheses of ureas, thioureas, sulfonamides, amides, and pyrazoles. In conjunction with the use of other polymeric reactants during the course of a reaction, the addition of polymer-supported
描述了三(2-氨基乙基)胺和异氰酸甲酯的聚苯乙烯-二乙烯基苯负载衍生物的制备。这些聚合试剂用于淬灭过量反应物并从从尿素、硫脲、磺酰胺、酰胺和吡唑的溶液相、平行合成获得的粗反应产物中去除已知杂质。与在反应过程中使用其他聚合反应物相结合,在反应结束时加入聚合物负载的淬灭剂允许通过单次过滤和溶剂蒸发来分离所需产物。这种方法的机械简单性和效率使得通过液相合成获得的粗反应产物的快速平行纯化成为可能,