Stereoselective Modification of <i>N</i>-(α-Hydroxyacyl)-glycinesters via Palladium-Catalyzed Allylic Alkylation
作者:Alexander Horn、Uli Kazmaier
DOI:10.1021/acs.orglett.9b01497
日期:2019.6.21
excellent nucleophiles in Pd-catalyzed allylic alkylation. The method allows for the stereoselective introduction of a wide range of side chains, including highly functionalized ones. Both diastereomers can be accessed through variation of the reaction conditions. Furthermore, the use of stannylated carbonates introduces vinylstannane motifs, which are eligible for subsequent C–C coupling reactions.
Highly stereoselective modifications of peptides via Pd-catalyzed allylic alkylation of internal peptide amide enolates
作者:Swarup Datta、Anton Bayer、Uli Kazmaier
DOI:10.1039/c2ob26351c
日期:——
Pd-catalyzed allylations are excellent tools for stereoselectivepeptide modifications, showing several advantages compared to normal alkylations. Reactions of internal peptide amide enolates with Pd–allyl complexes proceed not only with high yields of up to 86%, they show also high regio- and diastereoselectivities (88–99%), giving rise to the trans-configured products. Therefore, this protocol is