Copper complexes bearing an NHC-calixarene unit: synthesis and application in click chemistry was written by Ourri, Benjamin;Tillement, Olivier;Tu, Tao;Jeanneau, Erwann;Darbost, Ulrich;Bonnamour, Isabelle. And the article was included in New Journal of Chemistry in 2016.Formula: C4H7BrO2 This article mentions the following:
The synthesis of N-heterocyclic carbene (NHC) copper complexes supported by calix[4]arene is reported. Mono-substituted calix[4]arene was prepared through conventional procedures, followed by the attachment of an imidazolyl group to create the precursor of NHC ligands. Alkylation with two alkyl bromides followed by metalation resulted in fully characterized original complexes. The x-ray structure showed an “out” conformation for copper. The catalytic activity of the complexes was studied in click chem., and revealed good performances. In particular, three new triazoles were synthesized in high yields, under solvent-free conditions and a fast reaction time. The newly synthesized chiral complex was tested in the kinetic resolution of racemic azide. In the experiment, the researchers used many compounds, for example, 2-Bromomethyl-1,3-dioxolane (cas: 4360-63-8Formula: C4H7BrO2).
2-Bromomethyl-1,3-dioxolane (cas: 4360-63-8) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. Dioxole functionalized metal-organic frameworks have also been recently reported.Formula: C4H7BrO2
Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem