Pirrung Michael C, Sarma Koushik Das
Department of Chemistry, Levine Science Research Center, Duke University, Durham, North Carolina, 27708, USA.
J Am Chem Soc. 2004 Jan 21;126(2):444-5. doi: 10.1021/ja038583a.
Two multicomponent reactions, the Ugi and Passerini reactions, are accelerated by the use of aqueous solutions. The rate enhancements compared to those by organic solvents can approach 300-fold. Reactions performed in water offer another advantage that products are often insoluble, permitting direct isolation by precipitation. The methods were applied to the preparation of three small combinatorial libraries.
乌吉反应(Ugi反应)和帕瑟里尼反应(Passerini反应)这两种多组分反应,通过使用水溶液可加快反应速度。与使用有机溶剂相比,反应速率提高可达300倍。在水中进行的反应还有另一个优点,即产物通常不溶,可通过沉淀直接分离。这些方法已应用于三个小型组合文库的制备。