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Abstract | Cited by

Self-assembled pseudocyclic structures consisting of two molecules of a crown-containing butadienyl dye and two Mg2+ ions readily undergo regio- and stereospecific [2+2] photocycloaddition in MeCN to produce a single cyclobutane stereoisomer in almost quantitative yield.

Graphical abstract: Regio- and stereospecific [2+2] photocyclodimerization of a crown-containing butadienyl dyevia cation-induced self-assembly in solution

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