Microwave synthesis and fluorous purification of 4-(tetrathienyl)butyric acid for self-assembled monolayer semiconductor applications
作者:Mark C. McCairn、Fan Huang、Michael L. Turner
DOI:10.1016/j.tetlet.2007.12.101
日期:2008.2
Microwave-promoted synthesis and fluorous purification procedures have been employed successfully to generate 4-(tetrathienyl)butyric acid rapidly. Initially, a fluorous tag 1H,1H-perfluorooctylamine was tethered to 4-(thienyl)butyric acid via an amide traceless linkage. Subsequent, sequential α-bromination and Stille cross-coupling reactions with 2-(tributylstannyl)thiophene grew the fluorous-tagged
微波促进的合成和氟纯化程序已成功用于快速生成4-(四噻吩基)丁酸。最初,通过无痕酰胺键将氟标签1 H,1 H-全氟辛基胺束缚到4-(噻吩基)丁酸。随后,与2-(三丁基锡烷基)噻吩的顺序α-溴化和Stille交叉偶联反应有效地生长了带氟标签的4-(低聚噻吩基)丁酸。每次合成转化后均进行氟固相萃取程序,以优异的产率分离出含氟标签的化合物中间体。最后,通过微波促进的酰胺键皂化作用裂解氟标签,以释放所需的4-(四噻吩基)丁酸。