RT info:eu-repo/semantics/article T1 Multivalent Molecular Shuttles – Effect of Increasing the Number of Centers in Switchable Catalysts A1 Álvarez González, Celedonio Manuel A1 Barbero San Juan, Héctor A1 Miguel San José, Daniel K1 Organocatalysis AB A family of three molecular shuttles based upon ammonium/triazolinium salt motifs with one, two, and three catalytic centers were prepared along with their corresponding non‐interlocked threads. The switching process for all rotaxanes was tested through an in situ procedure in solution. Furthermore, their organocatalysis of two Michale‐type reactions by iminium activation was tested to check whether the increase of the number of catalytic centers in the same shuttle is a decisive factor to improve their efficiencies compared with those of single‐active‐site organocatalytic shuttles under the same conditions. PB Wiley SN 1434-193X YR 2015 FD 2015 LK http://uvadoc.uva.es/handle/10324/29160 UL http://uvadoc.uva.es/handle/10324/29160 LA eng NO European Journal of Organic Chemistry, 2015, 6631–6640 NO Producción Científica DS UVaDOC RD 22-nov-2024