Synlett 2012; 23(14): 2126-2128
DOI: 10.1055/s-0032-1316704
letter
© Georg Thieme Verlag Stuttgart · New York

The Synthesis and Characterization of a New Furazan Heterocyclic System

David E. Chavez*
a   Los Alamos National Laboratory, Weapons Experiments Division, Los Alamos, NM 87545, USA, Fax: +1(505)6670500   eMail: dechavez@lanl.gov
,
Damon A. Parrish
b   Naval Research Laboratory, Laboratory for the Structure of Matter, Washington, D.C. 20375, USA
,
Philip Leonard
a   Los Alamos National Laboratory, Weapons Experiments Division, Los Alamos, NM 87545, USA, Fax: +1(505)6670500   eMail: dechavez@lanl.gov
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Publikationsverlauf

Received: 14. Mai 2012

Accepted after revision: 14. Juni 2012

Publikationsdatum:
26. Juli 2012 (online)


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Abstract

A new furazan macrocycle, hexakis[1,2,5]oxadi­azole[3,4-c:3′,4′-e;3′′,4′′-g:3′′′,4′′′-k:3′′′′,4′′′′-m:3′′′′′,4′′′′′-o][1,2,9,10]- tetraazacyclohexadecine was synthesized by oxidation of diamino trifurazan with trichloroisocyanuric acid. A macrocyclic product is formed under the reaction conditions. The product displays interesting structural properties within the trifurazan segments of the molecule, where the central rings are rotated nearly 90° out of plane from the outer rings. The macrocycle has also been shown to be a sensitive explosive with sensitivity and power similar to the explosive pentaerythritol tetranitrate (PETN). The chemical and explosive properties of this new macrocycle are described in this letter.

Supporting Information

 
  • References and Notes

  • 3 Coburn MD. J. Heterocycl. Chem. 1968; 5: 83
  • 6 Anokhina PV, Romanova TV, Mel’nikova SF, Tselinskii IV. Russ. J. Org. Chem. 2011; 47: 1606
  • 7 Tselinskii IV, Mel’nikova SF, Romanova TS, Dundukova EA. Russ. J. Org. Chem. 2001; 37: 1355
  • 8 Macrocycle 3 To a slurry of diamino trifurazan (1, 2.36 g, 10 mmol) in MeCN (100 mL) was added portionwise trichloroiso-cyanuric acid (4.18 g, 18 mmol). After the addition was complete, the reaction was allowed to stir for 2 h at 25 °C. The solid was filtered and washed with a minimal amount of MeCN. The filtrate was concentrated and purified by column chromatography (CH2Cl2) to give 1.74 g (75%) of the desired product; mp 122 °C (dec.). IR (KBr): ν = 1734, 1618, 1559, 1479, 1427, 1395, 1364, 1134, 1051, 1029, 1007, 1002, 988, 910cm–1. 13C NMR (100 MHz, DMSO-d 6): δ = 133.78, 143.90, 161.41. Anal. Calcd for C3H4N8O4: C, 31.05; N, 48.27. Found: C, 31.02; N, 48.28. MS (EI): m/z = 232 amu. Macrocycle 4 To a slurry of 3,4-bisamino furazanyl furoxan (1, 2.52 g, 10 mmol) in MeCN (100 mL) was added portionwise trichloroisocyanuric acid (4.18 g, 18 mmol). After the addition was complete, the reaction was allowed to stir for 2 h at 25 °C. The solid was filtered and washed with a minimal amount of MeCN. The filtrate is concentrated and purified by column chromatography (CH2Cl2) to give 1.49 g (60%) of the desired product; mp 111 °C (dec.). IR (KBr): ν = 1649, 1605, 1578, 1551, 1513, 1424, 1126, 1046, 1029, 1000, 968, 891cm–1. 13C NMR (100 MHz, DMSO-d 6): δ = 104.6, 132.43, 134.533, 144.04, 161.12, 161.23. Anal. Calcd for C12N16O8: C, 29.04; N, 45.16. Found: C, 29.06 N, 45.13. MS (EI): m/z = 248 amu.
  • 9 CCDC 861602 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data_request/cif.
  • 10 Parrish, D. A. private communication, 2011.
  • 11 Fried LA, Howard WM, Bastea S, Glaesmnn K, Souers PC, Vitello PA, Kuo I.-F. CHEETAH Thermochemical Code CA, 2007;
  • 12 Sheremetev AB, Ivanova EA, Spiridonova NP, Melnikova SF, Tselinsky IV, Suponitsky KY, Antipin MY. J. Heterocycl. Chem. 2005; 42: 1237