multicomponent reaction that generates functionalized 1,4-dicarbonyl motifs via formal hydrocarbonylation of activated alkynes with propargylamines and water under metal-free conditions. This novel synthesis method utilizes propargylamines and water as carbonyl and proton precursors in which propargylamines are activated in situ by alkynes for α-C(sp3)–H activation and C–N bond cleavage. This method
A novel approach for the synthesis of C<sub>60</sub> fullerenes containing strained 2,3-dimethylenebicyclo[2,2,0]hexane fragments
作者:Airat R. Tuktarov、Nuri M. Chobanov、Ilfir R. Ramazanov、Arthur R. Tulyabaev、Arslan R. Akhmetov、Dim I. Galimov、Usein M. Dzhemilev
DOI:10.1039/d0nj05465h
日期:——
The present article details a novel approach for introducing strained 2,3-dimethylenebicyclo[2,2,0]hexane structures into the C60 fullerene molecule, based on the reaction of C60 with substituted propargylamines, promoted by the Ti(Oi-Pr)4 and EtMgBr system. The theoretical LUMO energies of the strained C60 derivatives calculated at the PBEPBE/6-311G(d,p) level of theory are from −3.93 to −4.09 eV