Synfacts 2011(4): 0383-0383  
DOI: 10.1055/s-0030-1259634
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

Twist with Twin Porphyrin

Contributor(s): Timothy M. Swager, Ggoch Ddeul Han
L. K. Frensch, K. Pröpper, M. John, S. Demeshko, C. Brückner*, F. Meyer*
Georg-August-Universität Göttingen, Germany and University of Connecticut, Storrs, USA
Further Information

Publication History

Publication Date:
18 March 2011 (online)


The expanded porphyrin 3, incorporating two pyrazole and four pyrrole units, was obtained from the key building block 1. Interestingly, this molecule involves nonaromatic π-systems due to the replacement of pyrroles by pyrazoles, whereas general porphyrins show aromatic conjugations.