4.7 Article

Maximizing the [c2]daisy chain to lasso ratio through competitive self-templating clipping reactions

Journal

CHEMICAL COMMUNICATIONS
Volume 58, Issue 2, Pages 290-293

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d1cc05942d

Keywords

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Funding

  1. Ministerio de Ciencia e Innovacion of Spain [PID2020-113686GB-I00]
  2. Fundacion Seneca-CARM [20811/PI/18, 20259/FPI/17]

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Self-templating two-component coupling reactions resulted in the isolation of two threaded products with different molecular sizes: a lasso-type rotaxane and a daisy chain rotaxane. Their distribution in the final reaction mixture varies depending on the concentration of the reactants. This methodology also allowed the synthesis of a large 84-membered cyclic multistation rotaxane.
Self-templating two-component coupling reactions allowed the isolation of two threaded products with different molecular sizes: a lasso-type [1]rotaxane and a [c2]daisy chain rotaxane. Their distribution in the final reaction mixture varies as a factor of the concentration of the reactants. Through this methodology we obtained a large 84-membered cyclic multistation [2]rotaxane.

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