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An efficient two-step synthesis of metal-free phthalocyanines using a Zn(ii) template
Jawad Alzeer1, Phillipe J C Roth, Nathan W Luedtke
1Institute of Organic Chemistry, University of Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland.
Abstract:
A new family of cationic phthalocyanines containing four guanidinium groups was synthesized in pyridine-HCl at 120 degrees C; under these conditions zinc was removed from both the starting materials and products to reveal a new synthetic route to metal-free phthalocyanines.
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