N,N,N',N',N'',N''-hexamethylphosphoric triamide; samarium diiodide; sodium hydride 1) THF, r.t., 2) THF, r.t., 24 h; Yield given. Multistep reaction. Yields of byproduct given;

N,N,N',N',N'',N''-hexamethylphosphoric triamide; samarium diiodide; sodium hydride 1) THF, r.t., 5 min, 2) THF, r.t., 24 h; Yield given. Multistep reaction. Yields of byproduct given;