Palladium-catalyzed carbonylative synthesis of α,β-unsaturated amides from aryl azides and alkenylaluminum reagent
作者:Bo Chen、Xiao-Feng Wu
DOI:10.1016/j.jcat.2020.01.017
日期:2020.3
In this work, an interesting procedure for the synthesis of α,β-unsaturatedamides from aryl azides and alkenylaluminum reagent has been developed. With palladium as the catalyst and XPhos as the ligand under carbon monoxide pressure, the desired α,β-unsaturatedamides were isolated in good to excellent yields with good functional group tolerance. Remarkably, this procedure also represents an example
Gas Phase Chemistry of Li<sup>+</sup> with Amides: the Observation of LiOH Loss in Mass Spectrometry
作者:Cheng Guo、Yuping Zhou、Pengyuan Liu、Yunfeng Chai、Yuanjiang Pan
DOI:10.1007/s13361-012-0389-8
日期:2012.7.1
three sets of compounds that contains an amide bond, including 2-(4, 6-dimethoxypyrimidin-2-ylsulfanyl)-N-phenylbenzamide, its derivatives and simpler structures was investigated by electrospray ionization tandem mass spectrometry (ESI-MS/MS). Observed fragment ions include those that reflect loss of LiOH. Other product ions result from the Smiles rearrangement and direct C–S bondcleavage. MS/MS of H/D