One-pot synthesis of a [c2]daisy-chain-containing hetero[4]rotaxane via a self-sorting strategy.

ABSTRACT: The construction and efficient synthesis of hetero[n]rotaxanes with high structural complexity are always attractive challenges. Herein, we demonstrate a facile one-pot preparation of a hetero[4]rotaxane, by employing a self-sorting strategy, which contains an interpenetrated dibenzo-24-crown-8 (DB24C8) based [c2]daisy chain structure and is ended with a benzo-21-crown-7 (B21C7) based rotaxane at each side. The key to the design involved encoding the selective threading using a steric hindrance-related "language", where highly selective self-assemblies occurred in a three-component self-sorting process, which included the threading of a benzylalkylammonium into a B21C7 and interpenetrated dimerized formation of a DB24C8 based [c2]daisy chain simultaneousl

SUBMITTER: Fu X 

PROVIDER: S-EPMC5535066 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature