Chemical Papers

, Volume 67, Issue 1, pp 3–8 | Cite as

Palladium-catalysed Claisen rearrangement of 6-allyloxypurines

  • Petr Koukal
  • Hana Dvořáková
  • Dalimil Dvořák
  • Tomáš TobrmanEmail author
Original Paper


6-Allyloxypurines readily undergo palladium-catalysed Claisen rearrangement under mild conditions affording N 1-substituted hypoxanthines. In contrast with the previously reported protocol, the Claisen rearrangement can be performed using Pd(PPh3)4 or Pd(dba)2/dppf in dry THF at 60°C. The reaction can accommodate variously substituted allyl fragments to position N 1 of the hypoxanthine skeleton with high yields. Retention of the double bond configuration during rearrangement was observed.


Claisen rearrangement purine allyloxypurines palladium hypoxanthine 


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  1. Castro, A. M. M. (2004). Claisen rearrangement over the past nine decades. Chemical Reviews, 104, 2939–3002. DOI: 10.1021/cr020703u.CrossRefGoogle Scholar
  2. De Clercq, E., & Neyts, J. (2004). Therapeutic potential of nucleoside/nucleotide analogues against poxvirus infections. Reviews in Medical Virology, 14, 289–300. DOI: 10.1002/rmv.439.CrossRefGoogle Scholar
  3. Kimura, K., & Bugg, T. D. H. (2003). Recent advances in antimicrobial nucleoside antibiotics targeting cell wall biosynthesis. Natural Product Reports, 20, 252–273. DOI: 10.1039/b202149h.CrossRefGoogle Scholar
  4. Kotek, V., Chudíková, N., Tobrman, T., & Dvořák, D. (2010). Selective synthesis of 7-substituted purines via 7,8-dihydropurines. Organic Letters, 12, 5724–5727. DOI: 10.1021/ol1025525.CrossRefGoogle Scholar
  5. Kotek, V., Tobrman, T., & Dvořák, D. (2012). Highly efficient and broad-scope protocol for the preparation of 7-substituted 6-halopurines via N9-Boc-protected 7,8-dihydropurines Synthesis, 2012, 610–618. DOI: 10.1055/s-0031-1290068.Google Scholar
  6. Lagoja, I. M. (2005). Pyrimidine as constituent of natural biologically active compounds. Chemistry & Biodiversity, 2, 1–50. DOI: 10.1002/cbdv.200490173.CrossRefGoogle Scholar
  7. Mitchell, S. S., Whitehill, A. B., Trapido-Rosenthal, H. G., & Ireland, C. M. (1997). Isolation and characterization of 1,3-dimethylisoguanine from the Bermudian sponge Amphimedon viridis. Journal of Natural Products, 60, 727–728. DOI: 10.1021/np970015j.CrossRefGoogle Scholar
  8. Miura, S., & Izuta, S. (2004). DNA polymerases as targets of anticancer nucleosides. Current Drug Targets, 5, 191–195. DOI: 10.2174/1389450043490578.CrossRefGoogle Scholar
  9. Petrović, M., B., Simonović, A. T., Radovanović, M. B., Milić, S. M., & Antonijević, M. M. (2012). Influence of purine on copper behavior in neutral and alkaline sulfate solutions. Chemical Papers, 66, 664–676. DOI: 10.2478/s11696-012-0174-y.CrossRefGoogle Scholar
  10. Phelps, K., Morris, A., & Beal, P. A. (2012). Novel modifi-cations in RNA. ACS Chemical Biology, 7, 100–109. DOI: 10.1021/cb200422t.CrossRefGoogle Scholar
  11. Rachakonda, S., & Cartee, L. (2004). Challenges in antimicrobial drug discovery and the potential of nucleoside antibiotics. Current Medicinal Chemistry, 11, 775–793. DOI: 10.2174/0929867043455774.CrossRefGoogle Scholar
  12. Ranganathan, D., Rathi, R., Keshavan, K., & Pal Singh, W. (1986). The demonstration of normal O→N Claisen rearrangement in purines. Tetrahedron, 42, 4873–4878. DOI: 10.1016/s0040-4020(01)82069-x.CrossRefGoogle Scholar
  13. Schenck, T. G., & Bosnich B. (1985). Homegeneous catalysis. Transition-metal-catalyzed Claisen rearrangements. Journal of the American Chemical Society, 107, 2058–2066. DOI: 10.1021/ja00293a041.Google Scholar
  14. Simons, C., Wu, Q., & Htar, T. T. (2005). Recent advances in antiviral nucleoside and nucleotide therapeutics. Current Topics in Medicinal Chemistry, 5, 1191–1203.CrossRefGoogle Scholar
  15. Szafraniec, S. I., Stachnik, K. J., & Skierski, J. S. (2004). New nucleoside analogs in the treatment of hematological disorders. Acta Poloniae Pharmaceutica — Drug Research, 61, 223–232.Google Scholar
  16. Tobrman, T., & Dvořák, D. (2003). 6-Magnesiated purines: Preparation and reaction with aldehydes. Organic Letters, 5, 4289–4291. DOI: 10.1021/ol0355027.CrossRefGoogle Scholar
  17. Tobrman, T., & Dvořák, D. (2008). Heck reactions of 6- and 2-halopurines. European Journal of Organic Chemistry, 2008, 2923–2928. DOI: 10.1002/ejoc.200800091.CrossRefGoogle Scholar
  18. Vik, A., & Gundersen, L. L. (2007). Synthetic studies directed towards asmarines; construction of the tetrahydrodiazepinopurine moiety by ring closing metathesis. Tetrahedron Letters, 48, 1931–1934. DOI: 10.1016/j.tetlet.2007.01.090.CrossRefGoogle Scholar
  19. Wieland, T., & Bauer, L. (1951). Weitere Versuche zur Stofftrennung durch Papierchromatographie und Ionophroese. Purine und Aminosäuren. Angewandte Chemie, 63, 511–513. DOI: 10.1002/ange.19510632104.CrossRefGoogle Scholar
  20. Yagi, H., Matsunaga, S., & Fusetani, N. (1994). Isolation of 1-methylherbipoline, a purine base, from a marine sponge, Jaspis sp. Journal of Natural Products, 57, 837–838. DOI: 10.1021/np50108a025.CrossRefGoogle Scholar
  21. Yamada, T., Peng, C. G., Matsuda, S., Addepalli, H., Jayaprakash, K. N., Alam, M. R., Mills, K., Maier, M. A., Charisse, K., Sekine, M., Manoharan, M., & Rajeev, K. G. (2011). Versatile site-specific conjugation of small molecules to siRNA using click chemistry. The Journal of Organic Chemistry, 76, 1198–1211. DOI: 10.1021/jo101761g.CrossRefGoogle Scholar

Copyright information

© Institute of Chemistry, Slovak Academy of Sciences 2012

Authors and Affiliations

  • Petr Koukal
    • 1
  • Hana Dvořáková
    • 1
  • Dalimil Dvořák
    • 1
  • Tomáš Tobrman
    • 1
    Email author
  1. 1.Department of Organic ChemistryInstitute of Chemical TechnologyPrague 6Czech Republic

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