We have presented the first palladium(II)‐thiadiazole‐ligand catalytic system, employing 1,3,4‐thiadiazole derivative as ligand to achieve the esterification of terminal olefin with excellent regio‐ and stereoselectivity. This work is significant in that it represented the first application of 1,3,4‐thiadiazole in organic synthesis. Furthermore, it was also featured by its satisfied yields, mild reaction
A Survey of Sulfide Ligands for Allylic CH Oxidations of Terminal Olefins
作者:Chi “Chip” Le、Kamala Kunchithapatham、William H. Henderson、Christopher T. Check、James P. Stambuli
DOI:10.1002/chem.201301787
日期:2013.8.19
to a THT! Screening a diverse library of thioether ligands led to the discovery of tetrahydrothiophene (THT) as a highly reactive and selective ligand for Pd‐catalyzed allylicCHoxidation reactions (see scheme). This novel ligand system provides some of the highest reported yields for the formation of (E)‐linear allylic acetates through allylicCH activation chemistry (BQ = 1,4‐benzoquinone).