Dihydropyrimidinones and dihydropyrimidinethiones generated from the Biginelli reactions of perfluorooctanesulfonyl-attached benzaldehydes are used as common intermediates for post-condensation modifications such as cycloaddition, Liebeskind–Srogl reaction and Suzuki coupling to form biaryl-substituted dihydropyrimidinone, dihydropyrimidine, and thiazolopyrimidine compounds. The high efficiency of the diversity-oriented synthesis is achieved by conducting a multicomponent reaction for improved atom economy, under microwave heating for fast reaction, and with fluorous solid-phase extractions (F-SPE) for ease of purification.
从与
全氟辛烷磺酰基连接的
苯甲醛的Biginelli反应中生成的二氢
嘧啶酮和二氢
嘧啶硫酮被用作后缩合修饰的常见中间体,如环加成、Liebeskind-Srogl反应和Suzuki偶联,以形成取代苯基的二氢
嘧啶酮、二氢
嘧啶和
噻唑嘧啶化合物。通过进行多组分反应以提高原子经济性,采用微波加热以快速反应,以及采用
氟固相萃取(F-
SPE)以便于纯化,实现了多样性定向合成的高效率。