Highly electron deficient and nonplanar β-octachlorovanadylporphyrin (VOTPPCl 8 ) was synthesized and utilized for selective epoxidation of olefins with very high TOF numbers (6566-9650 h −1 ).
Highly electron deficient β-substituted Ni( ii ) porphyrins ( 1–5 ) were synthesized and utilized as novel sensors for selective rapid visual detection of CN − ions.