2,3‐Dihydroporphycene–an Analogue of Chlorin

Abstract

2,3-Dihydroporphycene 1 and 2,3-dihydroporphyrin are constitutional isomers with similar bonding behavior and similar π-electron structure. 2,3-Dihydroporphyrin is of interest, inter alia, as parent compound of chlorophyll; 1 can be obtained by hydrogenation of porphycene.