A 'click' chemistry route to 'capped' porphyrins

Synthesis of a new 'capped' porphyrin 3 with rigid 1,2,3-triazole linkers between the porphyrin and 'capping' group has been achieved. A 'click' reaction, the copper(I)-catalysed variant of the Huisgen 1,3-dipolar cycloaddition, is used to create four linkages concomitantly under anhydrous conditions in N,N-dimethylformamide.3 page(s