Fig. 4
From: Catalytic amidation of natural and synthetic polyol esters with sulfonamides
Scope of amide esters mono-amidation with saccharin. Reaction conditions: 4 (0.6 mmol), 2m (0.5 mmol) and Hf(OTf)4 (1.0 mol %) was stirred at 150 °C for 24 h unless otherwise noted; isolated yields; a1.0 mmol (2.0 equiv) of 4h was used. Product mixture contains 18% double substitution product
