Bridged heterocyclium dicationic closo- icosahedral perfluoroborane, borane, and carborane salts via aqueous, open-air benchtop synthesis

Organic Letters

Volumn 12, Issue 12, 2010, Pages 2714-2717

  Shackelford, Scott A ^d   Belletire, John L ^a   Boatz, Jerry A ^d   Schneider, Stefan ^d   Wheaton, Amanda K ^a   Wight, Brett A ^a   Ammon, Herman L ^b   Peryshkov, Dmitry V ^c   Strauss, Steven H ^c  

^a AIR FORCE RESEARCH LABORATORY   (United States)

^b Bldg 142   (United States)

^c Department of Environmental and Radiological Health Sciences   (United States)

^d NONE

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EID: 77953580607     PISSN: 15237060     EISSN: 15237052     Source Type: Journal    
DOI: 10.1021/ol100752y     Document Type: Article

References (21)

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3. Shackelford, S. A.; Belletire, J. L. 12th New Trends in Research of Energetic Materials (NTREM) International Seminar, Pardubice, Czech Republic, April 1-3 2009.
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5. Belletire, J. L.; Shackelford, S. A.; Schneider, S.; Wight, B. A.; Strauss, S. H. Synth. Commun. Submitted for publication.
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15. 12] reactant salts were purchased from Katchem Ltd., E. Krasnohorske 6, 110 00 Prague 1, Czech Republic and were used as received.
16. 3CN and was refluxed for 6.5 h. The resultant suspension was cooled to rt, vacuum filtered, and vacuum dried to yield 2.560 g (98%) of white solid salt 2.
17. The 1,4-dibromo-2-butyne was purchased from BromOrganics Corporation, P.O. Box 722, Elk Grove, IL 60009.
18. 3CN. Each capped vial was microwaved at 100 °C for 45 min and then was cooled in a freezer (-13.5 °C). The suspensions of each vial were combined and vacuum filtered. Vacuum drying at 50 °C for 3 d yielded 1.398 g (22%) of white solid salt 3.
19. Kaplan, G.; Drake, G.; Tollison, K.; Hall, L.; Hawkins, T. J. Heterocyclic Chem. 2005, 42, 19
20. 12], beaker (9 min total add time). The aq suspension was cooled to rt and placed into a refrigerator (3.0 °C). Vacuum filtration and rinsing of the solid cake with 2 × - 1 mL of pre-chilled (3.0 °C) DI water followed. The semi-dried cake was placed in the same 50 mL beaker with the same stir bar, and 6 mL of fresh DI water were added. The stirred suspension was digested at 78-80 °C for 30 min, cooled to rt, and placed into the refrigerator 16 h. Vacuum filtration, rinsing of the solid cake with 2 × - 1 mL of pre-chilled DI water, and high vacuum drying to 18 mTorr at rt yielded 1.060 g (92%) of white salt 16.
21. Ammon, H. L. Propellants, Explos., Pyrotech. 2008, 33, 92