Fe-Catalyzed Thioesterification of Carboxylic Esters
作者:Silja Magens、Bernd Plietker
DOI:10.1002/chem.201101073
日期:2011.8.1
shelf‐stable aryl esters and thiols, a variety of carboxylic acid esters were transformed into the corresponding thioesters with no racemization of labile stereocenters (see scheme). The method was successfully applied in a native chemical‐ligation‐type peptide formation, which suggests that the thiol may act as a co‐catalyst for future 1,2‐additions of pronucleophiles to carboxylicesters.
NHC-catalyzed thioesterification of aldehydes by external redox activation
作者:Takuya Uno、Tsubasa Inokuma、Yoshiji Takemoto
DOI:10.1039/c2cc17183j
日期:——
The NHC-catalyzed thioesterification of aromatic or aliphatic aldehydes with a range of thiols was developed in the presence of a stoichiometric amount of an organic oxidant. Among the oxidants examined, phenazine was shown to give the best results in terms of chemical yield and compatibility with thiols.