作者:Carolina Estarellas、M. Carmen Rotger、Magdalena Capó、David Quiñonero、Antonio Frontera、Antoni Costa、Pere M. Deyà
DOI:10.1021/ol900470r
日期:2009.5.7
In this study, the importance of anion−π interactions in four-memberedrings has been evidenced. Two kinds of rings have been found to be suitable for participation in anion−π interactions: first, in different salts of cyclobuten-1,2-dione derivatives and, second, in η4-cyclobutadiene complexes with transition metals.