|
|||||
|
|
Improbable Rotaxanes Constructed From Surrogate Malonate Rotaxanes as Encircled Methylene Synthons |
|
| Authors: | Chi-You Tsai Dr. Hung-Te Cheng Prof. Sheng-Hsien Chiu |
| Affiliation: | 1. Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan These authors contributed equally to this work.;2. Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan |
| Abstract: | We have developed a new approach for the synthesis of “improbable” rotaxanes by using malonate-centered rotaxanes as interlocked surrogate precursors. Here, the desired dumbbell-shaped structure can be assembled from two different, completely separate, portions, with the only residual structure introduced from the malonate surrogate being a methylene group. We have synthesized improbable [2]- and [3]rotaxanes with all-hydrocarbon dumbbell-shaped components to demonstrate the potential structural flexibility and scope of the guest species that can be interlocked when using this approach. |
| Keywords: | Hydrocarbons Hydrolysis Malonate Ester Rotaxanes Supramolecular Chemistry |