Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2013 Jan 4;15(1):116-9.
doi: 10.1021/ol303142c. Epub 2012 Dec 18.

Catenation of calixarene annulus

Carmine Gaeta  1 , Carmen Talotta, Silvia Mirra, Luigi Margarucci, Agostino Casapullo, Placido Neri
Affiliations

Catenation of calixarene annulus

Carmine Gaeta et al. Org Lett. .

Abstract

Through-the-annulus-catenated calixarenes have been obtained, for the first time, by exploiting the "superweak anion" approach that allows the threading of the calix cavity with functionalized dialkylammonium axles. In addition, the first example of a stereoprogrammed synthesis of a catenane orientational isomer (an oriented calix[2]catenane) has been obtained, after macrocyclization, by using a directional alkylbenzylammonium axle.

PubMed Disclaimer