Organocopper(III) Phenanthriporphyrin—Exocyclic Transformations

Autor: Agata Białońska, Lechosław Latos-Grażyński, Bartosz Szyszko, Kamil Kupietz, Michał J. Białek
Rok vydání: 2019
Předmět:
Zdroj: Inorganic Chemistry. 58:1451-1461
ISSN: 1520-510X
0020-1669
DOI: 10.1021/acs.inorgchem.8b02997
Popis: 5,6-Dimethoxyphenanthriporphyrin 1 and 5,6-dioxophenanthriporphyrin 2 act as suitable organometallic ligands for copper(III), adopting trianionic [CCNN] coordination cores. Under oxidizing conditions, in the presence of methanol, copper(III) phenanthriporphyrin 1-Cu undergoes transformation to copper(III) phenanthriporphodimethene with methoxy substituents attached to two trans meso positions. Addition of acids to 1-Cu yields two isomeric copper(III) isophenanthriporphyrins protonated on one of the meso carbon atoms. Protonation of copper(III) 5,6-dioxophenanthriporphyrin 2-Cu yields the aromatic diprotonated complex 2-Cu-H22+. In the presence of HBF4 2-Cu undergoes borylation at the carbonyl oxygen atoms, forming an aromatic exocyclic boron(III) complex.
Databáze: OpenAIRE