149472-78-6Relevant articles and documents
Nucleophilic Functionalization of the Calix[6]arene Para- and Meta-Position via p-Bromodienone Route
De Rosa, Margherita,Soriente, Annunziata,Concilio, Gerardo,Talotta, Carmen,Gaeta, Carmine,Neri, Placido
, p. 7295 - 7300 (2015)
It is here demonstrated that the p-bromodienone route, previously reported for calix[4]arenes, is also effective for the functionalization of the calix[6]arene macrocycle. Thus, alcoholic O-nucleophiles can be introduced at the calix[6]arene exo rim. In a
Regioselective monoalkylation of calixarenes. Synthesis of homodimer calixarenes
Santoyo-Gonzalez, Francisco,Torres-Pinedo, Antonio,Sanchez-Ortega, Adolfo
, p. 4409 - 4414 (2007/10/03)
The selective monoalkylation at the smaller (lower) rim of the p-tert- butylcalix[4]- and -[6]arenes using bis(butyltin)oxide and different alkylating agents is described. The procedure is remarkable for the mild conditions used allowing an efficiently access to monoalkylated calixarene derivatives in moderate to good yields. Monoalkynylcalix[4]arene and monoalkynylcalix[6]arene have been synthetically exploited for the synthesis of bis-calix[n]arenes (n = 4, 6) with a diyne bridge by oxidative coupling of alkynes. In addition, intermolecular methathesis of the obtained monoalkenylcalix[4]arene allowed the preparation of bis-calix[4]arene that are single bridged at the smaller (lower) rim with a 2-butenyl moiety.
