Johnstone, K.Pearce, W.Pyke, S.2007-02-252007-02-252002Journal of Porphyrins and Phthalocyanines, 2002; 6(11-12):661-6721088-42461099-1409http://hdl.handle.net/2440/4633<jats:p>A modification of the Barton-Zard pyrrole synthesis involving condensation of isocyanoacetate esters with cyclic unsaturated sulfones using sodium hydride as base is demonstrated for the construction of annulated pyrroles.</jats:p>enCopyright © 2002 Society of Porphyrins & PhthalocyaninesPorphyrin building blocks: using a modified Barton-Zard approach to construct annulated pyrrolesJournal article002002224710.1142/s10884246020007980001812502000022-s2.0-003699121559427Pyke, S. [0000-0002-0061-5115]