In recent years, the synthesis and application of aromatic hydrocarbons with zigzag rings connected head to tail by benzene rings have been widely explored. Extended zonal hydrocarbons replace part of the six-membered rings in zonal hydrocarbons with non-six-membered rings, and have attracted much attention due to their unique structures.

Figure 1 Structure of zigzag hydrocarbon belts containing six-membered and non-six-membered carbon rings

In 2023, Professor Wang Meixiang's research group at Tsinghua University made breakthrough progress in the field of synthesis of extended ring hydrocarbons. They used the "bridge-building across the bay" strategy developed in the laboratory and used resor[4][4][4]cycloocttrienone with C4 symmetry (Figure 1 E), and derivatized it. This type of extended ring-band molecule not only has excellent chiral photophysical properties, with a luminescence asymmetry factor (|glum|) as high as 0.01, but can also selectively recognize cesium ions, providing a new idea for the selective extraction of cesium ions. [1], the research results have been published in Angew. Chem. Int. Ed.

J&K Scientific exclusively supplies a series of heterocalixarene and crownarene compounds developed by Professor Wang Meixiang's research group in the early stage to facilitate supramolecular chemistry research. Product advantages are as follows:
Diverse structures: Provide new macrocyclic platform molecules. These compounds are the most basic skeletons and can be used for various derivatizations, making up for the poor structural modification of the second-generation supramolecular host compound cyclodextrin;
Unique performance: unique molecular recognition performance and sensing performance, filling the gap in the recognition and sensing of neutral molecules, transition metals, and anions by the first-generation supramolecular host compounds crown ether and cryptanether;
Wide range of applications: used in the construction of hard materials (MOFs), soft materials (liquid crystals) and functional materials, biometric identification, diagnosis, drug sustained release, etc., supplementing the shortcomings of traditional calixarene applications.

heterocalixarene

1

Product name:
Dichloro-diazadioxacalix[2][2][2][2]triazine, 95%
CAS：819065-56-0
Item number：1938031

3

Product name:
Tetraazacalix[4]pyridine, 95%
CAS：502763-15-7
Item number：1938033

4

Product name:
Phenylcopper(III) Perchlorate, 95%
CAS：1169706-62-0
Item number：1938033

Crown aromatics

1

Product name:
Hexabromo-O6-corona[3][3][3][3]tetrazine, 95%
CAS：1642594-08-8
Item number：1938036

References

1. Peng Y, Tong S, Zhang Y, et al. Functionalized Hydrocarbon Belts: Synthesis, Structure and PropertiesJ. Angewandte Chemie, 2023, 135(24): e202302646.