(5) Uyeda, C.; Jacobsen, E. N. "Transition-State Charge Stabilization through Multiple Non-Covalent Interactions in the Guanidinium-Catalyzed Enantioselective Claisen Rearrangement." J. Am. Chem. Soc. 2011 , 133 , 5062-5075. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.