Enantioselective Nitration of Chiral (E)-Crotylsilanes: A Concise Asymmetric Synthesis of (E)-Olefin Dipeptide Isosteres
作者:Richard T. Beresis、Craig E. Masse、James S. Panek
DOI:10.1021/jo00129a003
日期:1995.12
Asymmetric C−N Bond Constructions via Crotylsilane Addition Reactions: A Stereocontrolled Route to Dipeptide Isosteres
作者:Craig E. Masse、Bradford S. Knight、Pericles Stavropoulos、James S. Panek
DOI:10.1021/ja964364w
日期:1997.7.1
A new approach to the asymmetric synthesis of (E)-olefin dipeptide isosteres is described based on asymmetric C−N bond constructions resulting from nitronium tetrafluoroborate (NO2BF4) promoted electrophilic nitrations of chiral (E)-crotylsilanes and from a copper(I)-catalyzed enantioselective aziridination of chiral (E)-crotylsilanes. The silane reagents undergo efficient anti-SE‘ additions to the