The synthesis of partially β-fluorinated meso-tetraphenylporphyrins using Lindsey conditions, has been examined, starting either from 3, 4-difluoro-1H-pyrrole or from 3-fluoro- 1H-pyrrole. In the case of the first synthon, condensation with pyrrole and benzaldehyde afforded a mixture of porphyrins of general formula β-FnTPP (n= 0, 2, 4, 6, 8) displaying linearly correlated spectroscopic and electrochemical properties. With the second synthon ...