Mitsunobu Approach to the Synthesis of Optically Active α,α-Disubstituted Amino Acids
作者:Jonathan E. Green、David M. Bender、Stona Jackson、Martin J. O’Donnell、James R. McCarthy
DOI:10.1021/ol802325h
日期:2009.2.19
α-azido esters by Mitsunobureaction with HN3. Optimization of this reaction was shown to proceed at room temperature with high chemical yield using 1,1-(azodicarbonyl)dipiperidine (ADDP) and trimethylphosphine (PMe3). Complete inversion of configuration was observed at the α-carbon. Several α,α-disubstituted amino acids were synthesized in high overall chemical yield and optical purity.