title: An efficient two-step synthesis of metal-free phthalocyanines using a Zn(ii) template.
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.
authors.affiliation: Institute of Organic Chemistry, University of Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland.
authors.forename: Jawad
authors.initials: J
authors.lastname: Alzeer
authors.forename: Phillipe J C
authors.initials: PJ
authors.lastname: Roth
authors.forename: Nathan W
authors.initials: NW
authors.lastname: Luedtke