Skip to main content
Log in

Substituted homoallenyl aldehydes and their derivatives. Part 2: Azines

  • Original Paper
  • Published:
Chemical Papers Aims and scope Submit manuscript

Abstract

This paper deals with the preparation of a variously substituted non-symmetrical azine set. The starting molecule for their preparation was a protected hydrazone. The protection was performed applying Zwierzak’s method. This procedure is based on the transfer of hydrazine to diethylhydrazidophosphate, which reacts with aldehydes to produce protected hydrazones. In the second step of the procedure, under the action of sodium hydride, the addition of another aldehyde affords non-symmetrical azines in the reaction with the protected hydrazine. The procedure was shown to be a useful and effective method. In this, the second part of our study, we present results devoted to the preparation and full identification of non-symmetrical azines.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Brandsma, L. (2001). Unsaturated carbanions, heterocumulenes and thiocarbonyl compounds — new routes to heterocycles. European Journal of Organic Chemistry, 2001, 4569–4581. DOI: 10.1002/1099-0690(200112)2001:24〈4569::aid-ejoc 4569〉3.0.CO;2-w.

  • Brandsma, L. (2004). Synthesis of acetylenes, allenes and cumulenes: Methods and techniques. Oxford, UK: Elsevier.

    Google Scholar 

  • Brandsma, L., & Nedolya, N. A. (2004). Allenic compounds and isothiocyanates as key building units in the synthesis of heterocycles. Synthesis, 2004, 735–745. DOI: 10.1055/s-2004-816005.

  • Brasholz, M., Reissig, H. U., & Zimmer, R. (2009). Sugars, alkaloids, and heteroaromatics: exploring heterocyclic chemistry with alkoxyallenes. Accounts of Chemical Research, 42, 45–56. DOI: 10.1021/ar800011h.

    Article  CAS  Google Scholar 

  • Bruker AXS (1997). SHELXTL, Version 5.10. An integrated system for solving and refining crystal structures from diffraction data. Madison, WI, USA: Bruker AXS.

    Google Scholar 

  • Galeta, J., Man, S., & Potáček, M. (2009). Non-symmetrical allenyl azines and their transformations leading to new heterocyclic skeletons. ARKIVOC, 2009, 6, 245–259.

    Google Scholar 

  • Galeta, J., Man, S., Bouillon, J. P., & Potáček, M. (2011). Unexpected heterocyclic products from cycloaddition reactions of nonsymmetrical allenyl aldoketazines with substituted alkynes. European Journal of Organic Chemistry, 2011, 392–398. DOI: 10.1002/ejoc.201001044.

  • Galeta, J., & Potáček, M. (2012). Substituted diazatetracyclo [4.4.0.13,10.15,8]dodecanes as stable caged proton sponges. The Journal of Organic Chemistry, 77, 1010–1017. DOI: 10.1021/jo202235f.

    Article  CAS  Google Scholar 

  • Galeta, J., Man, S., & Potáček, M. (2013). Substituted homoallenyl aldehydes and their derivatives. Part 1: Homoallenyl aldehydes and protected hydrazones. Chemical Papers, 67, 29–39. DOI: 10.2478/s11696-012-0215-6.

    Google Scholar 

  • Koziara, A., Turski, K., & Zwierzak, A. (1986). A general synthesis of unsymmetrical azines via N-(diethoxyphosphinyl)-hydrazones. Synthesis, 1986, 298–301. DOI: 10.1055/s-1986-31589.

  • Krause, N., & Hashmi, A. S. K. (2004). Modern allene chemistry. Weinheim, Germany: Wiley-VCH.

    Book  Google Scholar 

  • Man, S., Kulhánek, P., Potáček, M., & Nečas, M. (2002). New fused heterocycles by combined intra-intermolecular crisscross cycloaddition of nonsymmetrical azines. Tetrahedron Letters, 43, 6431–6433. DOI: 10.1016/s0040-4039(02)01378-3.

    Article  CAS  Google Scholar 

  • Man, S., Bouillon, J. P., Nečas, M., & Potáček, M. (2004). Combined intra-intermolecular criss-cross cycloaddition of a new fluorinated unsymmetrical allenylazine with alkynes. Tetrahedron Letters, 45, 9419–9421. DOI: 10.1016/j.tetlet.2004.10.107.

    Article  CAS  Google Scholar 

  • Man, S., Nečas, M., Bouillon, J. P., Baillia, H., Harakat, D., & Potáček, M. (2005). New intra-intermolecular criss-cross cycloaddition of unsymmetrical allenylazines with alkynes lead ing to three fused five-membered heterocycles. Tetrahedron, 61, 2387–2393. DOI: 10.1016/j.tet.2005.01.020.

    Article  CAS  Google Scholar 

  • Schweizer, E. E., & Lee, K. J. (1984). Reactions of azines. 8. Synthesis and thermal rearrangement of 1-oxo-3,4-diaza-2,4,6-heptatrienes and 1-oxo-3,4-diaza-2,4,6,7-octatetraenes (allenyl azines). The Journal of Organic Chemistry, 49, 1959–1964. DOI: 10.1021/jo00185a025.

    Article  CAS  Google Scholar 

  • Schweizer, E. E., Hayes, J. E., Hirwe, S. N., & Rheingold, A. L. (1987). Reactions of azines. 9. Preparation of 4,5-dihydropyrazolo[1,5-a]pyridines, 6,7-dihydropyrazolo[1,5-a]pyridines, and pyrazolo[1,5-a]pyridines. The Journal of Organic Chemistry, 52, 1319–1324. DOI: 10.1021/jo00383a028.

    Article  CAS  Google Scholar 

  • Zachová, H., Man, S., Nečas, M., & Potáček, M. (2005). Fused tetracyclic heterocycles by thermally initiated intramolecular criss-cross cycloaddition of 3-substituted homoallenylaldazines. European Journal of Organic Chemistry, 2005, 2548–2557. DOI: 10.1002/ejoc.200400814.

  • Zachová, H., Marek, R., Man, S., Taraba, J., & Potáček, M. (2006). A new rearrangement of fused tetracyclic heterocycles in an acidic medium in the presence of NaBH3CN. Tetrahedron Letters, 47, 8157–8159. DOI: 10.1016/j.tetlet.2006.09.030.

    Article  Google Scholar 

  • Zachová, H., Man, S., Taraba, J., & Potáček, M. (2009). Rearrangement of fused tetracyclic heterocycles induced by alkyl halides and formation of a new type of ‘proton sponge’. Tetrahedron, 65, 792–797. DOI: 10.1016/j.tet.2008.11.057.

    Article  Google Scholar 

  • Zimmer, R. (1993). Alkoxyallenes — building blocks in organic synthesis. Synthesis, 1993, 165–178. DOI: 10.1055/s-1993-25823.

  • Zwierzak, A., & Sulewska, A. (1976). Solid-liquid phasetransfer-catalysed phosphorylation of hydrazine. Preparation of dialkyl phosphorohydrazidates and N,N′-bis[dialkoxyphosphoryl] hydrazines. Synthesis, 1976, 835–837. DOI: 10.1055/s-1976-25385.

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Milan Potáček.

Additional information

Dedicated to Professor Štefan Toma on the occasion of his 75th birthday

Rights and permissions

Reprints and permissions

About this article

Cite this article

Galeta, J., Man, S., Valoušková, A. et al. Substituted homoallenyl aldehydes and their derivatives. Part 2: Azines. Chem. Pap. 67, 40–50 (2013). https://doi.org/10.2478/s11696-012-0238-z

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.2478/s11696-012-0238-z

Keywords

Navigation