Homan, H. Strain Effects in Protonated Carbonyl Compounds. An Experimental and ab Initio Treatment of Acyclic Carboxamides and Ketones. [electronic resource] - The Journal of organic chemistry Nov 1997 - 8503-8512 p. digital Publication Type: Journal Article ISSN: 1520-6904 Standard No.: 10.1021/jo971330d doi