Efficient 1,5-Chirality Transfer in Palladium-Catalyzed Allylic Alkylations of Chelated Amino Acid Ester Enolates
作者:Uli Kazmaier、Thomas Lindner
DOI:10.1002/anie.200500095
日期:2005.5.20
Substrate-Controlled Palladium-Catalyzed Allylic Alkylations of Chelated Enolates - Scope and Limitations
作者:Thomas Lindner、Uli Kazmaier
DOI:10.1002/adsc.200505140
日期:2005.10
Chelatedenolates of amino acid derivatives were found to be excellent nucleophiles for stereoselective palladium-catalyzed allylic alkylations via terminal π-allyl complexes. Neither the olefin geometry (linear substrates) nor the configuration of secondary allylic substrates has an influence on the newly formed stereogenic centre of the amino acid. This is exclusively controlled by the protecting