921224-82-0Relevant articles and documents
Synthesis of enantiopure α-Tfm-proline and α-Tfm-pipecolic acid from oxazolo-pyrrolidines and -piperidines
Bordessa, Andrea,Brigaud, Thierry,Chelain, Evelyne,Diarra, Sitan,Gadais, Charlène,Lensen, Nathalie,Sanchez, Clément A.
, p. 6771 - 6775 (2021/08/20)
Enantiopure α-Tfm-proline and α-Tfm-pipecolic acid were synthesized starting from commercially available diesters and ethyl trifluoroacetate. A Strecker type reaction on intermediate chiral Tfm-oxazolo-pyrrolidine and -piperidine provided the corresponding nitrile precursor of enantiopure (R) and (S) α-Tfm-proline and α-Tfm-pipecolic acid. The C-terminal peptide coupling reaction of α-Tfm-pipecolic acid has been successfully achieved.
Iodocyclization of chiral cf3-allylmorpholinones: A versatile strategy for the synthesis of enantiopure α-Tfm-prolines and α-Tfm-dihydroxyprolines
Caupene, Caroline,Chaume, Gregory,Ricard, Louis,Brigaud, Thierry
supporting information; experimental part, p. 209 - 212 (2009/06/20)
An efficient iodocyclization reaction of a chiral Tfm-allylmorpholinone provides a straightforward route to α-Tfm-prolines and α-Tfmdihydroxyprolines. The methodologies developed are particularly well adapted for gram-scale synthesis of enantiopure compou
Straightforward synthesis of (S)- and (R)-α-trifluoromethyl proline from chiral oxazolidines derived from ethyl trifluoropyruvate
Chaume, Gregory,Van Severen, Marie-Celine,Marinkovic, Sinisa,Brigaud, Thierry
, p. 6123 - 6126 (2007/10/03)
(Chemical Equation Presented) A concise synthesis of both enantiomers of α-Tfm-proline and (S)-α-Tfm-prolinol from ethyl trifluoropyruvate is reported. The key step is a diastereoselective allylation reaction of ethyl trifluoropyruvate and (R)-phenylglyci