Palladium-Catalyzed Fluorocarbonylation Using N-Formylsaccharin as CO Source: General Access to Carboxylic Acid Derivatives
摘要:
N-Formylsaccharin, an easily accessible crystalline compound, has been employed as an efficient CO source in Pd-catalyzed fluorocarbonylation of aryl halides to afford the corresponding acyl fluorides in high yields. The reactions use a near-stoichiometric amount of the CO source (1.2 equiv) and tolerate diverse functional groups. The acyl fluorides obtained could be readily transformed into various carboxylic acid derivatives such as carboxylic acid, esters, thioesters, and amides in a one-pot procedure.
Molybdenum-Mediated Carbonylation of Aryl Halides with Nucleophiles Using Microwave Irradiation
作者:Bryan Roberts、David Liptrot、Lilian Alcaraz、Tim Luker、Michael J. Stocks
DOI:10.1021/ol1016965
日期:2010.10.1
A new, efficient, and practical molybdenum-mediatedcarbonylation of aryl and heteroaryl halides with a variety of nucleophiles is described using microwave irradiation. A range of reactions illustrating the wide scope of this chemistry were carried out and proceeded in good to excellent yields.