FIELD: chemistry.
SUBSTANCE: invention relates to field of organic chemistry, namely to method of obtaining 4a,5b,10,12-tetraazaindeno[2,1-b]fluorene, which consists in the fact that interaction of pyridine with 1,5-dichloro-2,4-dinitrobenzene is carried out at temperature 20°C in acetone and molar ratio 1,5-dichloro-2,4-dinitrobenzene:pyridine = 1:4 for 4 hours, reduction of alcohol salt solution 1,1'-(4,6-dinitro-1,3-phenylene)dipyridinium is realised with solution SnCl2·2H2O in 3% hydrochloric acid and molar ratio salt 1,1'-(4,6-dinitro-1,3-phenylene)dipyridinium : SnCl2·2H2O = 1:6 at temperature 40°C for 0.25 h.
EFFECT: method of binding, which is characterised by reduction of synthesis time and increase of purity and target product output, has been elaborated.
2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF 1,2,3,4,6,7,8,9-OCTAHYDRO-4a,5b,10,12-TETRAAZAINDENO[2,1-b]FLUOREN-5,11-DIONE SYNTHESIS | 2017 |
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