Nitrogen extrusion from pyrazoline-substituted porphyrins and chlorins using long wavelength visible light.
Protoporphyrin reacts with diazomethane to give pyrazolines which at long wavelength (approximately 630 nm) extrude nitrogen to give the corresponding cyclopropyl derivatives.
Desjardins
Angela
A
Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, B.C., Canada.
Flemming
Jeffery
J
Sternberg
Ethan D
ED
Dolphin
David
D
D003432:Cross-Linking Reagents / Q000138:chemical synthesis / Q000737:chemistry; D008027:Light; D009584:Nitrogen / Q000737:chemistry*; D010778:Photochemotherapy; D017319:Photosensitizing Agents / Q000138:chemical synthesis / Q000737:chemistry; D011166:Porphyrins / Q000138:chemical synthesis / Q000737:chemistry*; D011720:Pyrazoles / Q000138:chemical synthesis / Q000737:chemistry*
D003432:Cross-Linking Reagents; D017319:Photosensitizing Agents; D011166:Porphyrins; D011720:Pyrazoles; C006969:chlorin; D009584:Nitrogen