Synthesis of Benzihemiporphyrazine Bearing tert-Butylquinoxaline[2,3-c]pyrrole Fragments

Abstract

A new representative macroheterocyclic compound of the ABAB-type was synthesized by crossover-condensation of m-phenylenediamine and 6-tert-butylquinoxaline-2,3-dicarbonitrile by refluxing in fresh distillated

Microwave-Assisted Synthesis and Characterization of Carba- and Triazolehemiporphyrazines with Camphorapyrazine Fragments

“…On the other hand, the use of substituted dinitriles based on pyrazine led to core modified macrocycles, which are characterized by the presence of additional nitrogen atoms, thus providing supplementary coordination abilitiy and a basic character of the macroheterocycle. [16,17] Optically active compounds based on tetrapyrazinoporphyrinoids have been obtained by introduction of camphor fragments in their structure. [18][19][20][21] Recently [22] we briefly reported on the synthesis of racemic and R-(+)-camphor substituted cHps, the last one being used as optically active dopant of a nematic mixture of cucurbit [6]uril (CB6).…”

Complexes of Ca(II), Ni(II) and Zn(II) with Hemi- and Dicarbahemiporphyrazines: Molecular Structure and Features of Metal-Ligand Bonding

“…[10][11][12] A number of works are devoted to the study of the structure of this class of compounds. [13][14][15][16][17] One of the fundamental problems of macroheterocycles is the aromaticity of the macrocyclic system. Phthalocyanines are characterized by an aromatic macroring bearing 18 π-electrons which causes them to absorb light from the red region of the spectrum assuming their blue color.…”