We report a series of rotaxane-based anion-π catalysts in which the mechanical bond {between|in between|among|amongst|involving} a bipyridine macrocycle and an axle containing an NDI unit is intrinsic {to the|towards the|for the} activity observed, {including|such as|which includes|like} a [3]rotaxane that catalyses an otherwise disfavoured Michael addition in >60 fold selectivity {over|more than} a competing decarboxylation pathway that dominates {under|below|beneath} Brønsted base {conditions|circumstances|situations}. {The results|The outcomes} are rationalized by detailed experimental investigations, electrochemical and computational {analysis|evaluation}. 1083326-73-1 Price (E)-3-(Thiazol-4-yl)acrylic acid Formula PMID:24059181
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