Palladium-Catalyzed Direct Arylation for the Synthesis of Indeno[2,1-b]-pyrrol-8-ones
作者:Junbiao Chang、Chuanjun Song、Li Sun、Jingjing Dong、Zhenhua Shen、Yueteng Zhang、Jie Wu、Ruiyong Wang、Jinqian Wang
DOI:10.1055/s-0032-1317347
日期:——
Treatment of 2-bromophenyl (N-tosylpyrrol-2′-yl)-ketones with Pd(OAc)2, Ph3P, and K2CO3 resulted in the formation of indeno[2,1-b]pyrrol-8-ones in moderate to good yields.
作者:Chuanjun Song、David W. Knight、Maria A. Whatton (neé Fagan)
DOI:10.1016/j.tetlet.2004.10.133
日期:2004.12
N-Tosylpyrroles can be very efficiently converted into the corresponding 2-acylpyrroles by reaction with carboxylic acids and trifluoroacetic anhydride; little or none of the isomeric 3-acyl derivatives are formed.
2-Bromo<i>-N-</i>(<i>p-</i>toluenesulfonyl)pyrrole: A Robust Derivative of 2-Bromopyrrole
作者:John W. Huffman、Lea W. Knight、Matthew L. Isherwood
DOI:10.1055/s-2003-42036
日期:——
2-Bromo-N-(p-toluenesulfonyl)pyrrole (2), a crystalline stable derivative of 2-bromopyrrole (1) has been prepared in 80% yield by bromination of pyrrole, followed by conversion to the N-(p-toluenesulfonyl) derivative. This compound is stable indefinitely at ambient temperature. Compound 2 is an excellent substrate for Suzuki coupling with arylboronic acids.