Abstract
Synthesis of a promising energetic material CL-20 requires the two-step catalytic re-functionalization of N-bonded benzyl groups (CH2-C6H5) of hexabenzylhexaazaisowurtzitane (HBIW) into acetyl (-CO-CH3) or formyl groups (-CHO) over Pd/C catalyst before its direct nitrolysis into final CL-20 product. Utilization of an expensive palladium-based catalyst deactivated fast during reaction contributes substantially to a high CL-20 cost being a significant hurdle limiting wide application of CL-20 in a propellant formulation. In this work a careful systematic study was performed to improve efficiency, resistance to deactivation, and life-time of Pd/C catalysts as well as to elucidate the optimal hydrodebenzylation reaction conditions. The catalyst activity decrease for Pd/C was found to be caused mainly by agglomeration of metal nanoparticles, Pd re-deposition on inaccessible inner areas of the carbon support, and blocking of the metallic palladium with by-products of intermediates destruction. Different ways to enhance Pd/C catalytic activity through an improvement of Pd dispersion and resistance of Pd particles to agglomeration and re-oxidation as well as through an increase of Pd accessibility for large HBIW molecules were proposed. The two-step HBIW debenzylation with a separately repeated use of the catalyst in each catalytic stage was considered as a promising way to increase catalyst productivity and to diminish CL-20 production costs.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsNotes
- 1.
The suggested “agglomeration” mechanism of Pd particles in catalysis is quite different from that occurring for Al particles in propellant burning.
Abbreviations
- AcCl:
-
Acetyl chloride
- Ac2O:
-
Acetic acid anhydryd
- AcOH:
-
Acetic acid
- CCD:
-
Central composite design
- CL-20:
-
2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetracyclo [5.5.0.03,11.05,9]dodecane
- CFC:
-
Catalytic filamentous carbon
- EXAFS:
-
Extended X-Ray Absorption Fine Structure
- DMA:
-
Dimethyl acetamide
- Dpore av :
-
Average pore size, nm
- DMF:
-
Dimethyl formamide
- GC:
-
Gas chromatography
- GC/MS:
-
Gas chromatography–mass spectrometry
- HBIW:
-
Hexabenzylhexaazaisowurtzitane
- HEM:
-
High energetic material
- HNIW:
-
2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetracyclo[5.5.0.03,11.05,9] dodecane
- HPLC:
-
High-performance liquid chromatography
- HRTEM:
-
High Resolution Transmission Electron Microscopy
- Is :
-
Specific impulse
- Pd(OAc)2 :
-
Palladium acetate
- PhBr:
-
Phenyl bromide
- (PhCO)2O:
-
Benzoic anhydride
- Ssp :
-
Specific surface area, m2 g−1
- TADBIW:
-
4,10-dibenzyl-2,6,8,12-tetraacetyl-2,4,6,8,10,12-hexaazaisowurtzitane
- TADFIW:
-
4,10-diformyl-2,6,8,12-tetraacetyl-2,4,6,8,10,12-hexaazaisowurtzitane
- TADEIW:
-
Tetraacetyldiethylhexaazaisowurtzitane
- TAIW:
-
Tetraacetylhexaazaisowurtzitane
- TADNIW:
-
Tetraacetyldinitrosohexaazaisowurtzitane
- TEM:
-
Transmission Electron Microscopy
- V:
-
Porous volume, mL g-1
- XANES:
-
X-ray Absorption Near Edge Structure
- XPS:
-
X-ray Photoelectron Spectroscopy
References
Ananikov VP, Khemchyan LL, Ivanova YV, Bukhtiyarov VI, Sorokin AM, Prosvirin IP, Vatsadze SZ, Medved’ko AV, Nuriev VN, Dilman AD, Levin VV, Koptyug IV, Kovtunov KV, Zhivonitko VV, Likholobov VA, Romanenko AV, Simonov PA, Nenajdenko VG, Shmatova OI, Muzalevskiy VM, Nechaev MS, Asachenko AF, Morozov OS, Dzhevakov PB, Osipov SN, Vorobyeva DV, Topchiy MA, Zotova MA, Ponomarenko SA, Borshchev OV, Luponosov YN, Rempel AA, Valeeva AA, Stakheev AY, Turova OV, Mashkovsky IS, Sysolyatin SV, Malykhin VV, Bukhtiyarova GA, Terent’ev AO, Krylov IB (2014) Development of new methods in modern selective organic synthesis: preparation of functionalized molecules with atomic precision. Russ Chem Rev 83:885–985. doi:10.1070/RC2014v83n10ABEH004471
Singh H (2005) Current trend of R&D in the field of high energy materials (HEMs): an overview. Explosion 15:120–132
Simpson RL, Urtiew PA, Ornellas DL, Moody GL, Scribner KJ, Hoffman DM (1997) CL-20 performance exceeds that of HMX and its sensitivity is moderate. Propellants Explos Pyrotechnics 22:249–255. doi:10.1002/prep.19970220502
Bumpus JA (2012) A theoretical investigation of the ring strain energy, destabilization energy, and heat of formation of CL-20. Adv Phys Chem. doi:10.1155/2012/175146, Article ID 175146, 7 pages
http://www.gizmag.com/cl-20-high-power-military-explosive/24059/
Willer RL (2013) The early history of CL-20 (HNIW). New trends in research of energetic materials, Czech Republic, pp 384–397
Nair UR, Sivabalan R, Gore GM, Geetha M, Asthana SN, Singh H (2005) Hexanitrohexaazaisowurtzitane (CL-20) and CL-20-based formulations: a review. Combus Explo Shock Waves 41:121–132. doi:10.1007/s10573-005-0014-2
Sysolyatin SV, Lobanova AA, Chernikova YT, Sakovich GV (2005) Methods of synthesis and properties of hexanitrohexaazaisowurtzitane. Russ Chem Rev 74:757–764. doi:10.1070/RC2005v074n08ABEH001179
Sysolyatin SV, Sakovich GV, Surmachev VN (2007) Methods for the synthesis of polycyclic nitramines. Russ Chem Rev 76:673–680. doi:10.1070/RC2007v076n07ABEH003716
Nielsen AT (1997) Caged polynitramine compound. US Patent 5,693,794, 2 Dec 1997
Bellamy AJ (1995) Reductive debenzylation of hexabenzylhexaazaisowurtzitane. Tetrahedron Lett 51:4711–4722. doi:10.1016/0040-4020(95)00155-2
Nielsen AT, Chafin AP, Christian SL, Moore DW, Nadler MP, Nissan RA, Vanderah DJ (1998) Synthesis of polyazapolycyclic caged polynitramines. Tetrahedron 54:11793–11812. doi:10.1016/S0040-4020(98)83040-8
Nielsen AT, Nissan RA, Vanderah DJ, Coon CL, Gilardi RD, George CF, Flippen-Andersen JL (1990) Polyazapolycyclics by condensation of aldehydes with amines. Formation of 2,4,6,8,10,12-hexabenzyl-2,4,6,8,10,12-[5.5.0.03.11.05.9]dodecanes from glyoxal and benzylamines. J Org Chem 55:1459–1466. doi:10.1021/jo00292a015
Nielsen AT, Nissan RA, Chafin AP, Gilardi RD, George CF (1992) Polyazapolycyclics by condensation of aldehydes with amines. 3. Formation of 2,4,6,8-tetrabenzyl-2,4,6,8-tetraazabicyclo[3.3.0]octanes from formaldehyde, glyoxal, and benzyl amine. J Org Chem 57:6756–6759. doi:10.1021/jo00051a016
Wang C, Ou Y, Chen B (2000) One-pot synthesis of hexanitrohexaazaisowurtzitane. Beijing Ligong Daxue Xuebao Trans Beijing Inst Technol 20:521–523
Latypov NV, Wellmar U, Goede P, Bellamy AJ (2000) Synthesis and scale-up of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane from 2,6,8,12-tetraacetyl-4,10-dibenzyl-2,4,6,8,10,12-hexaazaisowurtzitane (HNIW, CL-20). J Org Process Res Dev 4:156–158. doi:10.1021/op990097d
Geetha M, Nair UR, Sarwade DB, Gore GM, Asthana SN, Singh H (2003) Studies on CL-20: the most powerful high energy material. J Therm Anal Calorim 73:913–922. doi:10.1023/A:1025859203860
Sanderson AJ, Wardle RB, Warner KF (2000) Process for making 2,4,6, 8,10,12- hexanitro- 2,4,6,8,10, 12- hexaazatetracyclo [5.5.0.05.9.03.11]-dodecane. WO2000052011 8 Sep 2000
Kawabe S, Miya H, Kodama T, Miyake N (1998) Process for the preparation of hexanitrohexaazaisowurtzitanes. PCT Int. Appl. WO 9805666 12 Feb 1998
Zhenhua M, Hua Q, Lü C (2013) Nitration of TAIW to synthesize CL-20 using N2O5/HNO3 as nitrating agent. Rasayan J Chem 6:29–33
Chung HY, Kil HS, Choi IY, Chu CK, Lee IM (2009) New precursors for hexanitrohexaazaisowurtzitane (HNIW, CL-20). J Heterocycl Chem 37:1647–1649. doi:10.1002/jhet.5570370640
Chen JP, Penquite CR, Thakur DS (2001) Precious metal catalyst for debenzylation. US Patent 6,992,037, 31 Jan 2006
Cagnon G, Eck G, Herve G, Jacob G (2007) Process for the 2-stage synthesis of hexanitrohexaazaisowurtzitane starting from a primary amine. US Patent 7,279,572, 9 Oct 2007
Chapman RD, Hollins RA (2008) Benzylamine-free, heavy-metal-free synthesis of CL-20 via hexa(1-propenyl)hexaazaisowurtzitane. J Energetic Mater 26:246–273. doi:10.1080/07370650802182385
Mandal K, Pant CS, Kasar SM, Soman T (2009) Process optimization for synthesis of CL-20. J Energetic Mater 27:231–246. doi:10.1080/07370650902732956
Bayat Y, Ebrahimi H, Fotouhi-Far F (2012) Optimization of reductive debenzylation of hexabenzylhexaazaisowurtzitane (the key step for synthesis of HNIW) using response surface methodology. Org Process Res Dev 16:1733–1738. doi:10.1021/op300162d
Aldoshin SM, Aliev ZG, Goncharov TK, Korchagin DV, Milekhin YM, Shishov NI (2011) New conformer of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20). Crystal and molecular structures of the CL-20 solvate with glyceryl triacetate. Russ Chem Bull 60:1394–1400. doi:10.1007/s11172-011-0209-5
Lapina YT, Lobanova АА, Savitskii SА, Zolotuxina II, Kireeva АV (2012) Method of synthesis of gamma-polymorphous modification 2,4,6, 8,10,12- hexanitro- 2,4,6,8,10,12- hexaazatetracyclo [5.5.0.05.9.03.11]-dodecane. RU Patent 2,447,075, 10 Apr 2012
Kodama T, Ishihara N, Minoura H, Miyake N, Yamamatsu S (2002) Method of acylating of hexakis(phenylmethyl)hexaazaizowurtzitane. WO 99/19328. RU Patent 2,182,151, 10 May 2002
Kozlov AI, Zbarskii VL, Ignatov АV, Pinchuk YА, Kuznetsov LА, Merkin АА, Komarov АА, Rybin VЕ, Mikhailov YM, Mizgunova ЕN, Vidyaeva ТI (2012) Method of preparation of substituted hexaazaizowurtzitane. RU Patent 2,451,020, 20 Apr 2012
Kozlov AI, Zbarskii VL, Grunskii VN, Yudin NV, Kuznetsov LA, Merkin AA, Komarov AA, Kozlov IA, Rybin VE., Mikhailov YM, Mizgunova EN, Vidyaeva TI (2012) Method of debenzylation of 2,6,8,12-tetraacetyl-2,4,6,8,10,12-hexaazaisowurtzitane. RU Patent 2,448,110, 20 May 2012
Bernotas RC, Cube RV (1990) The use of Pearlman’s catalyst for selective N-debenzylation in the presence of benzyl ethers. Synth Commun 20:1209–1212
Koskin AP, Simakova IL, Parmon VN (2007) Study of the palladium catalyst deactivation in synthesis of 4,10-diformyl-2,6,8,12-tetraacetyl-2,4,6,8,10,12-hexaazaisowurtzitane. React Kinet Cat Lett 92:293–302. doi:10.1007/s11144-007-5203-4
Koskin AP, Simakova IL, Parmon VN (2007) Reductive debenzylation of hexabenzylhexaazaisowurtzitane – the key step of the synthesis of polycyclic nitramine hexanitrohexaazaisowurtzitane. Russ Chem Bull 56:2370–2375. doi:10.1007/s11172-007-0377-5
Simakova IL, Prosvirin IP, Kriventsov VV, Parmon VN (2012) The effect of preparation conditions on the catalytic and physical-chemical properties of Pd/C in reductive debenzylation of hexabenzylhexaazaisowurtzitane. J Siber Fed Univ Chem 3:238–245 (Rus, abstr. Engl.)
Koskin AP, Simakova IL, Troitskii SY, Parmon VN (2009). The catalyst, its preparation and process for preparing tetraacetyldiformylhexaazaisowurtzitane. RU Patent 2,359,753, 27 June 2009
Toebes ML, van Dillen JA, de Jong KP (2001) Synthesis of supported palladium catalysts. J Mol Cat A Chem 173:75–98. doi:10.1016/S1381-1169(01)00146-7
Kent R, Evans R (1972) Carbon supported palladium catalyst. US Patent 3,804,779, 16 Apr 1974
Norris WP, Nielsen AT (1994) Catalitic synthesis of caged polynitramine compounds. US Patent 8,017,768, 1 Sep 2011
Wardle RB, Edwards WW (1995) Rapidly adding hydrogen immediately upon adding acetic anhydride and palladium catalyst to reaction mixture of hexabenzylhexaazaisowurzitane (HBIW), cosolvent, and bromine source; by-product inhibition, simplification. US Patent 5,739,325, 14 Apr 1998
Simakova OA, Simonov PA, Romanenko AV, Simakova IL (2008) Preparation of Pd/C catalysts via deposition of palladium hydroxide onto sibunit carbon and their application to partial hydrogenation of rapeseed oil. React Kinet Catal Lett 95:3–12. doi:10.1007/s11144-008-5373-8
Semikolenov VA, Lavrenko SP, Zaikovskii VI (1994) Development of supported palladium particles in Pd/C catalysts. Kinet Catal 35:573–576
Maki-Arvela P, Kuusisto J, Sevilla EM, Simakova IL, Mikkola J-P, Myllyoja J, Salmi T, Murzin DY (2008) Catalytic hydrogenation of linoleic acid to stearic acid over different Pd- and Ru-supported catalysts. Appl Catal A Gen 345:201–212. doi:10.1016/j.apcata.2008.04.042
Simakova IL, Parmon VN (2013) Synthesis of 4,10-diformyl-2,6,8,12-tetraacetyl-2,4,6,8,10,12-hexaazaisowurtzitane over palladium on carbon. In: Abstracts of the 10th congress on catalysis applied to fine chemicals, Abo Akademi University, Turku/Abo, June 16–19, p 68
Albers P, Pietsch J, Parker SF (2001) Poisoning and deactivation of palladium catalysts. J Mol Catal A Chem 173:275–286. doi:10.1016/S1381-1169(01)00154-6
Simakova IL, Prosvirin IP, Parmon VN (2013) The insight on 4,10-diformyl-2,6,8,12-tetraacetyl-2,4,6,8,10,12-hexaazaisowurtzitane synthesis over colloidal Pd/C. In: Abstracts of the 9th high energy materials workshop, Institute of space and astronautical science/Japan aerospace exploration agency, October 7–9, О-61, pp 138–139
Blaser H-U, Indolese A, Schnyder A, Steiner H, Studer M (2001) Supported palladium catalysts for fine chemicals synthesis. J Mol Catal A Chem 173:3–18. doi:10.1016/S1381-1169(01)00143-1
Gurrath M, Kuretzky T, Boehm HP, Okhlopkova LB, Lisitsyn AS, Likholobov VA (2000) Palladium catalysts on activated carbon supports: influence of reduction temperature, origin of the support and pretreatments of the carbon surface. Carbon 38:1241–1255. doi:10.1016/S0008-6223(00)00026-9
Simonov PA, Troitskii SY, Likholobov VA (2000) Preparation of the Pd/C Catalysts: a molecular-level study of active site formation. Kinet Catal 41:255–269. doi:10.1007/BF02771428
Wardle RB, Hinshaw JC (1992) Method for making new polycyclic polyamides as precursors for energetic polycyclic polynitramine oxidizers. US Patent 6,147,209, 14 Nov 2000
Kovács E, Thurner A, Farkas F, Faigl F, Hegedűs L (2014) Hydrogenolysis of N- and O-protected hydroxyazetidines over palladium: efficient and selective methods for ring opening and deprotecting reactions. J Mol Catal A Chem 395:217–224. doi:10.1016/j.molcata.2014.08.027
Maxted EB, Biggs MS (1957) 764. The catalytic toxicity of nitrogen compounds. Part I. Toxicity of ammonia and of amines. J Chem Soc 3844–3847. doi:10.1039/JR9570003844
Hegedűs L, Máthé T (2002) Hydrogenation of pyrrole derivatives. Part V. Poisoning effect of nitrogen on precious metal on carbon catalysts. Appl Catal A Gen 226:319–322. doi:10.1016/S0926-860X(01)00898-5
Studer M, Blaser H-U (1996) Influence of catalyst type, solvent, acid and base on the selectivity and rate in the catalytic debenzylation of 4-chloro-N, N-dibenzylaniline with Pd/C and H2. J Mol Catal A Chem 112:437–445. doi:10.1016/1381-1169(96)00151-3
Simakova IL, Rozmysłowicz B, Simakova O, Mäki-Arvela P, Simakov A, Murzin DY (2011) Catalytic deoxygenation of C18 fatty acids over mesoporous Pd/C catalyst for synthesis of biofuels. Top Catal 54:460–466. doi:10.1007/s11244-011-9608-y
Snåre M, Mäki-Arvela P, Simakova IL, Myllyoja J, Murzin DY (2009) Overview of the catalytic methods of next generation biodiesel production from natural oils and fats. Russ J Phys Chem B 3:17–25. doi:10.1134/S1990793109070021
Madsen AT, Rozmyszowicz B, Simakova IL, Kilpio T, Leino A-R, Kordás K, Eränen K, Mäki-Arvela P, Murzin DY (2011) Step changes and deactivation behavior in the continuous decarboxylation of stearic acid. Ind Eng Chem Res 50:11049–11058. doi:10.1021/ie201273n
Nishimura S (2001) Handbook of heterogeneous catalytic hydrogenation for organic synthesis. Wiley, New York
Sysolyatin SV, Kalashnikov AI, Malykhin VV, Surmacheva IA, Sakovich GV (2010) Reductive debenzylation of 2,4,6,8,10,12-hexaazaisqwurtzitane. Int J Energ Mater Chem Propuls 9:365–375. doi:10.1615/IntJEnergeticMaterialsChemProp.v9.i4.60
Kalashnikov AI, Sysolyatin SV, Sakovich GV, Surmacheva IA, Surmachev VN, Lapina YT (2009) Debenzylation of 2,6,8,12-tetraacetyl-4,10-dibenzyl-2,4,6,8,10,12-hexaazatetracyclo[5.5.0.03.1105.9]dodecane. Russ Chem Bull 58:2164–2168. doi:10.1007/s11172-009-0295-9
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2017 Springer International Publishing Switzerland
About this chapter
Cite this chapter
Simakova, I.L., Parmon, V.N. (2017). Catalytic Aspects in the Synthesis of a Promising Energetic Material. In: De Luca, L., Shimada, T., Sinditskii, V., Calabro, M. (eds) Chemical Rocket Propulsion. Springer Aerospace Technology. Springer, Cham. https://doi.org/10.1007/978-3-319-27748-6_29
Download citation
DOI: https://doi.org/10.1007/978-3-319-27748-6_29
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-27746-2
Online ISBN: 978-3-319-27748-6
eBook Packages: EngineeringEngineering (R0)