Pn. Devine et al., STEREOSELECTIVE SYNTHESIS OF 2-ARYLOXY ACIDS FROM LACTAMIDE DERIVED ESTERS OF RACEMIC ALPHA-HALO CARBOXYLIC-ACIDS, Tetrahedron letters, 37(16), 1996, pp. 2683-2686
Pyrolidine derived (S)-lactamide auxiliaries mediate a highly stereose
lective coupling reaction between racemic alpha-haloacids and aryloxid
es. These amide auxiliaries exhibit enhanced rates of reaction as well
as increased degrees of diasteroselection over conventional ester aux
iliaries. Copyright (C) Elsevier Science Ltd.