Aggregates of calix[4]arenes based on the 2,6‐diaminotriazine · imide system | Zendy

Vreekamp Remko H. | Zendy; Verboom Willem | Zendy; Reinhoudt David N. | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Aggregates of calix[4]arenes based on the 2,6‐diaminotriazine · imide system

Author(s) -

Vreekamp Remko H.,

Verboom Willem,

Reinhoudt David N.

Publication year - 1996

Publication title -

recueil des travaux chimiques des pays‐bas

Language(s) - English

Resource type - Journals

ISSN - 0165-0513

DOI - 10.1002/recl.19961150705

Subject(s) - hydrogen bond , intramolecular force , calixarene , chloroform , chemistry , intermolecular force , imide , uracil , polymer chemistry , stereochemistry , molecule , organic chemistry , dna , biochemistry

The synthesis of several calix[4]arenes functionalized with uracil or diaminotriazine moieties is described. The association between these complementary calix[4]arenes is strongly influenced by processes related to the position and directionality of the hydrogen‐bonding moieties. In the case of bis(uracil)calix[4]arene ( 4 ), self‐association is observed ( K = 3.4 · 10 3 M −1 in CDCl 3 ) whereas, in the case of bis(diamidotriazine)calix[4]arene ( 16 ), it was concluded from 1 H‐NMR studies that intermolecular association is hampered by the formation of intramolecular hydrogen bonds. Due to the divergent orientation of the hydrogen‐bonding groups of bis(diaminotriazine)calix[4]arene ( 15b ), it forms hydrogen‐bonded strands through interaction with 5‐ethyl‐5‐phenylbarbituric acid ( 17 ), resulting in the formation of a gel in chloroform.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research