A non-tetradecarboxylative synthesis of 2,7,12,17-tetraphenylporphycene - Gavalda, A; Borrell, JI; Teixido, J; Nonell, S; Arad, O; Grau, R; Cañete, MC; Juarranz, A; Villanueva, A; Stockert, JC (Journal Of Porphyrins And Phthalocyanines, 2001)