Regioselective access to orthogonal Diels-Alder C60 bis-adducts and tris-heteroadducts {via|by way of|through|by means of} avant-garde supramolecular mask {strategy|technique|method|approach|tactic}
The regioselective poly-functionalization of {highly|extremely|very|hugely} symmetric spherical Ih-C60 is {extremely|very|incredibly|really|particularly|exceptionally} {challenging|difficult} and {usually|generally|typically|normally|commonly|ordinarily} {leads to|results in} the formation of regio-isomeric mixtures not amenable for HPLC purification. {Recently|Lately|Not too long ago},…