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2023•Organic & Biomolecular ChemistryOpen access

A thermally driven rotaxane–catenane interconversion with a dynamic bis(hindered amino) disulfide

Rikito Takashima, Daisuke Aoki, Akira Takahashi, Hideyuki Otsuka

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Abstract

We have developed a versatile and simple synthetic method to produce a [3]catenane. Heating a rotaxane with bis(hindered amino) disulfide groups at both ends spontaneously and selectively produces the [3]catenane. The successful polymerization of the obtained [3]catenane provides a platform for the synthesis of various interlocking polymers.

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What this paper is about

We have developed a versatile and simple synthetic method to produce a [3]catenane. Heating a rotaxane with bis(hindered amino) disulfide groups at both ends spontaneously and selectively produces the [3]catenane. The successful polymerization of the obtained [3]catenane provides a platform for the synthesis of various interlocking polymers.

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Available abstract

We have developed a versatile and simple synthetic method to produce a [3]catenane. Heating a rotaxane with bis(hindered amino) disulfide groups at both ends spontaneously and selectively produces the [3]catenane. The successful polymerization of the obtained [3]catenane provides a platform for the synthesis of various interlocking polymers.

Key concepts: Catenane, Rotaxane, Disulfide bond, Dynamic covalent chemistry, Chemistry, Molecular machine, Polymer chemistry, Crystallography

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