tris(dibenzylideneacetone)dipalladium(0) chloroform complex; sodium carbonate; triphenylphosphine in tetrahydrofuran T=80°C; 3 h; Inert atmosphere; optical yield given as percent destereoselective reaction;

sulfuric acid Fischer esterification; Heating;

1: 49 percent / Et3N; Ac2O / 5 h / Heating 2: 63 percent / conc. H2SO4 / Heating View Scheme

1: 49 percent / Et3N; Ac2O / 5 h / Heating 2: 63 percent / conc. H2SO4 / Heating View Scheme

nickel Hydrogenation;