Doubly diastereoselective conjugate addition of enantiopure lithium amides to enantiopure N-enoyl oxazolidin-2-ones: a mechanistic probe
作者:Stephen G. Davies、Ai M. Fletcher、Gesine J. Hermann、Giovanna Poce、Paul M. Roberts、Andrew D. Smith、Miles J. Sweet、James E. Thomson
DOI:10.1016/j.tetasy.2010.03.033
日期:2010.7
diastereoselective conjugateaddition of the antipodes of lithium N-benzyl-N-(α-methylbenzyl)amide to a range of enantiopure N-enoyl oxazolidin-2-ones has been used as a mechanistic probe to determine that the reactive conformation is the anti-s-cis form. The β-amino carbonyl products resulting from these conjugateaddition reactions are useful templates for further elaboration into an α,β,α-pseudotripeptide
作者:Denisa Hidasová、Martin Janák、Emanuela Jahn、Ivana Císařová、Peter G. Jones、Ullrich Jahn
DOI:10.1002/ejoc.201801139
日期:2018.10.9
With a single jump anti‐β‐amino‐α‐hydroxy esters or amides are obtained by merging polar aza‐Michael additions of chiral 1‐phenylethylamides to α,β‐unsaturated carboxylic acid derivatives and diastereoselective radical coupling with persistent free radical TEMPO.