Issue 3, 2021

N-Substituted tetrahydropentaazadibenzocycloheptafluorenes – a new type of condensed polyazapolycyclic system

Abstract

The first synthesis of N-substituted tetrahydro-4b,5a,10b,12,13a-pentaazadibenzo[a,h]cyclohepta[1,2,3,4-def]fluorenes has been successfully accomplished via ring transformation reaction of 1,3,5-tricycloalkyl-1,3,5-triazinanes with octahydro-2,2′-biquinazoline in the presence of NiCl2·6H2O as a catalyst. The structure was established on the basis of spectral data, mainly 1D (1H, 13C) and 2D (HSQC, HMBC, COSY) NMR spectra, and X-ray diffraction data. Hirshfeld surface analysis was used to study intermolecular interactions in the crystal.

Graphical abstract: N-Substituted tetrahydropentaazadibenzocycloheptafluorenes – a new type of condensed polyazapolycyclic system

Supplementary files

Article information

Article type
Paper
Submitted
27 Oct 2020
Accepted
09 Dec 2020
First published
10 Dec 2020

New J. Chem., 2021,45, 1240-1246

N-Substituted tetrahydropentaazadibenzocycloheptafluorenes – a new type of condensed polyazapolycyclic system

E. B. Rakhimova, V. Yu. Kirsanov, E. S. Mescheryakova, L. M. Khalilov and A. G. Ibragimov, New J. Chem., 2021, 45, 1240 DOI: 10.1039/D0NJ05270A

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