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.
Palladium-Catalyzed Thiocarbonylation of Iodoarenes with Thiols in Phosphonium Salt Ionic Liquids
作者:Hong Cao、Laura McNamee、Howard Alper
DOI:10.1021/jo800287s
日期:2008.5.1
Trihexyl(tetradecyl)phosphonium hexafluorophosphate, a phosphonium salt ionic liquid (PSIL) is a particularly effective general reaction media for the Pd-catalyzed carbonylation reaction of iodoarenes and thiols to form thioesters. Recycling of the ionic liquid containing active Pd-catalyst was also demonstrated.
Easily Prepared Azopyridines As Potent and Recyclable Reagents for Facile Esterification Reactions. An Efficient Modified Mitsunobu Reaction
class of electron-deficient reagents for Mitsunobuesterificationreactions. Among these compounds, 4,4′-azopyridine was found to be the most suitable one for esterification and thioesterification reactions. This new reagent promises to provide general and complementary solutions for separation problems in Mitsunobureactions without restricting the reaction scope and facilitates the isolation of its