Single Step Conversion of Chiral Carnitine and Derivatives into (S)- and (R)-β-Substituted-γ-Butyrolactones - Calvisi, Giuseppina; Catini, Roberto; Chiariotti, Wilma; Giannessi, Fabio; Muck, Sandra; Tinti, Maria Ornella; De Angelis, Francesco (Synlett, 1997)