N,N,N',N',N'',N''-hexamethylphosphoric triamide; samarium diiodide; phenol in tetrahydrofuran T=0°C; Inert atmosphere; optical yield given as percent dediastereoselective reaction;

N,N,N',N',N'',N''-hexamethylphosphoric triamide; samarium diiodide; phenol in tetrahydrofuran T=20°C; Inert atmosphere; optical yield given as percent dediastereoselective reaction;