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Template synthesis of rotaxanes with carbamate-linked axles

✍ Scribed by Oliver Braun; Annette Hünten; Fritz Vögtle


Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
107 KB
Volume
341
Category
Article
ISSN
1615-4150

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✦ Synopsis


Non-ionic template effects [1] proved to be a successful concept to synthesize supramolecular architectures [2], especially hydrogen bond-mediated catenane [3] and rotaxane [4] formation [5].

In the beginning aromatic diacid dichlorides were believed to be the guests to fit into tetralactame macrocycles. Reaction with bulky amine stoppers in the presence of a macrocycle led to amide-based rotaxanes. Yet by replacing the aromatic diacid dichloride "guests" with aliphatic ones it was even possible to synthesize amidebased rotaxanes with aliphatic building blocks [6]. So


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Chiral Amide Rotaxanes with Glucose Stop
✍ Thomas Schmidt; Roland Schmieder; Walter Manfred Müller; Bernd Kiupel; Fritz Vög 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 344 KB 👁 1 views

In this paper we report on amide rotaxanes with achiral wheels 2a and 2b and chiral axle indicate intermolecular host-guest interactions, likewise. After an tetrabenzoylglucose stoppers. When acetyl groups are used instead of benzoyl groups, merely a pseudo-rotaxane 5 is addition of a solution of Na