Palladium-catalysed asymmetric allylic substitution: synthesis of α- and β-amino acids
作者:Justin F. Bower、Roshan Jumnah、Andrew C. Williams、Jonathan M. J. Williams
DOI:10.1039/a606586d
日期:——
Methodology has been established for the formation of
enantiomerically enriched α-amino acids using palladium-catalysed
allylic amination. The formation of enantiomerically enriched
allylamines has been achieved with high enantioselectivity. Oxidative
cleavage of the allylamines provides arylglycine and glutamic acid
derivatives. Additionally, enantiomerically enriched β-amino acids
have been prepared in high enantiomeric excess. Palladium-catalysed
asymmetric allylic substitution is used as the key synthetic
transformation.
Synthesis of N-protected amino esters via palladium catalysed allylic substitution
作者:Roshan Jumnah、Jonathan M.J. Williams、Andrew C. Williams
DOI:10.1016/0040-4039(93)88120-8
日期:1993.10
N-protected allylamines were prepared by palladium catalysed allylic substitution of the corresponding allyl acetates with a range of nitrogen nucleophiles. The so-formed N-protected allylamines were subjected to oxidative cleavage of the alkene to afford N-protectedaminoacids or esters.