... 2007, 72 (22), pp 8501–8505. DOI: 10.1021/jo7017813. Publication Date (Web): September 27, 2007. Copyright ... A solution consisting of 9 (500 mg, 1.4 mmol), 15 mL of glacial acetic acid, 5 mL of H 2 ... mixture was then heated at 50 °C for 1 h, diluted with an equal volume of ethyl ...