Synthesis and Properties of Macroheterocyclic Compounds of ABAB-type with tert-Butylpyrrole¬pyrazine Fragments

Abstract

New representatives of macroheterocyclic compounds of ABAB-type were synthezised by condensation of m-phenylenediamine or 2,6-diaminopyridine (A) with 5-tert-butyl-2,3-dicyanopyrazine (B) inn BuOH. These compounds were characterizised by IR,1 H NMR spectroscopies, mass-spectrometry and elemental analysis.

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

“…Following the protocol applied previously in the synthesis of the tert-butylpyrrolepyrazine macroheterocycle, [20] compound 3 was obtained by crossover condensation of equimolecular amounts of 6-tert-butylquinoxaline-2,3-dicarbonitrile 1 and m-phenylenediamine 2 in boiling butanol (Scheme 1).…”

“…The introduction of bulky substituents (tert-butyl groups, for instance) onto the periphery of macrocycle increases the solubility in common organic solvents, facilitates their purification, and opens larger areas for their application. [19,20] Hence the subject of this work is synthesis and characterization of dibenzihemiporphyrazine of the ABAB-type with 1,3-phenylene (A) and pyrroloquinoxaline rings (B) bearing tert-butyl groups.…”

Physical-Chemical Properties of Modified Copper-Phthalocyanine and Its Aqueous Dispersions

“…[13][14][15][16][17][18][19][20][21] При этом достигается модифицирование каждой молекулы MPc необходимым числом функци-ональных фрагментов. Поверхность частиц MPc также может быть модифицирована посредством гетерофазных реакций с органическими молекулами.…”

Synthesis and X-Ray Crystal Structure of 1',7',7'-Trimethylbicyclo[2.2.1]heptane[2',3'-b]-2,3-dicyanopyrazine

“…[1][2][3][4][5][6] Their properties can be easily tuned by an insertion of different heterocyclic moieties. Nevertheless, pyrazinecontaining Mc are not numerous, despite nitrogen-rich aromatic framework, and can give rise to the new advanced functional materials with desirable properties.…”

“…[7] Herein, peripheral substitution of macrocycle with bulky groups facilitates synthesis and study of these compounds. [4,8] In this regard, a present paper describes preparation, as well as X-Ray and quantum chemical study of (±)1,2-camphorquinone-derived pyrazine-containing nitriles as further precursors for synthesis of macroheterocyclic compounds.…”