SciELO - Scientific Electronic Library Online

 
vol.49 issue2Experimental and Theoretical Study of the Products from the Spontaneous Dimerization of DL- and D-GlyceraldehydeShort Synthesis of a New Cyclopentene-1,3-dione Derivative Isolated from Piper carniconnectivum author indexsubject indexsearch form
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • Have no similar articlesSimilars in SciELO

Share


Journal of the Mexican Chemical Society

Print version ISSN 1870-249X

J. Mex. Chem. Soc vol.49 n.2 Ciudad de México  2005

 

Short Report

 

Synthesis of 2,4-Disubstituted Thiazole Combinatorial Unit on Solid-Phase: Microwave Assisted Conversion of Alcohol to Amine Monitored by FT-IR

 

Dyeison Antonow*,a, S. Graciela Mahlerb, Gloria L. Serrab, Eduardo Mantab and Vera Lucia Eifler-Limaa

 

a Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre - RS, Brazil. Present address: Cancer Research UK, Gene Targeted Drug Design Research Group, 29/39 Brunswick Square, The School of Pharmacy, London-UK, WC1N 1AX.* e-mail: dyeison.antonow@ulsop.ac.uk

b Departamento de Química Orgánica, Cátedra de Química Farmacéutica, Facultad de Química, Universidad de la República, Montevideo, Uruguay.

 

Received: October 26, 2004
Published on the web: March 30, 2005

 

Abstract

Microwave-assisted solid-phase synthesis of the 2,4-disubstituted thiazole 3 on Merrifield Resin is described. The hydroxyl moiety was converted to amine in five steps - including coupling and cleavage - within a total reaction time of 2 hours and 26% overall yield. The entire solid-phase synthesis was efficiently monitored by FT-IR/KBr pellets and allows potential use in combinatorial chemistry.

Keywords: thiazole, microwave, monitoring solid-phase reactions

 

Resumo

Síntese em fase sólida com auxílio de radiação de microondas do tiazol 2,4-dissubstituído 3 com Resina Merrifield é descrita. As reações envolveram a conversão do grupo hidroxila em amina em cinco etapas - incluindo acoplamento e clivagem - com redimento total de 26% em duas horas de tempo reacional. Todas etapas da rota sintética foram eficientemente monitoradas por FT-IR em discos de KBr, demonstrando que esse método pode ser usado em química combinatória.

 

DESCARGAR ARTÍCULO EN FORMATO PDF

 

References

1. Winter, M.; Warrass, R. In Combinatorial Chemistry Practical Approach; H. Fenniri, ed.; Oxford University Press: Oxford, 2000, ch. 6, and references therein.         [ Links ]

2. Graebin, C. S.; Eifler-Lima, V. L.; Quim. Nova. 2005, 28, 73.         [ Links ]

3. Lorgé, F.; Wagner, A.; Mioskowski, C.; J. Comb. Chem. 1999, 1, 25;         [ Links ] Rousselot-Pailley, P.; Ede, N. J.; Lippens, G.; J. Comb. Chem. 2001, 3, 559;         [ Links ] Grice, P.; Leach, A. G.; Ley, S. V.; Massi, A.; Mynett, D. M.; J. Comb. Chem. 2000, 2, 491;         [ Links ] Yan, B.; Li, W.; J. Org. Chem. 1997, 62, 9354.         [ Links ]

4. Yan, B.; Gremlich, H. U.; J. Chromatography B. 1999, 725, 91;         [ Links ] Yan, B.; Gremlich, H. U.; Moss, S.; Coppola, G. M.; Sun, Q.; Liu, L.; J. Comb. Chem. 1999, 1, 46.         [ Links ]

5. Groweiss, A.; Shmueli, U.; Kashman, Y.; Tetrahedron Lett. 1980, 21, 3629;         [ Links ] Okuda, R.; Sheuer, P. J.; Experientia 1985, 41, 1355;         [ Links ] Kashman, Y.; Groweiss, A.; Lidor, R.; Blasberger, D.; Carmely, S.; Tetrahedron 1985, 41, 1905;         [ Links ] Blasberger, D.; Carmely, S.; Cojocaru, M.; Spector, I.; Shochet, N. R.; Kashman, Y.; Liebigs Ann. Chem. 1989, 1171;         [ Links ] Northcote, P.; Blunt, J. W.; Munro, M. H.; Tetrahedron Lett. 1991, 32, 6411;         [ Links ] Kobayashi, J.; Kondo, K.; Ishibashi, M.; Wälchli, M. R.; Nakamura, T.; J. Am. Chem. Soc. 1993, 115, 6661;         [ Links ] Gerwick, W. H.; Proteau, P. J.; Nagle, D. G.; Hamet, E.; Blokkin, A.; State, D.; J. Org. Chem. 1994, 59, 1243.         [ Links ]

6. Crews, P.; Kakaou, Y.; Quiñoa, E.; J. Am. Chem. Soc. 1988, 110, 4365.         [ Links ]

7. Antonow, D.; Graebin, C. S.; Eifler-Lima, V. L.; J. Braz. Chem. Soc. 2004, 15, 782.         [ Links ]

8. Mahler, S. G.; Serra, G. L.; Antonow, D.; Manta, E.; Tetrahedron Lett. 2001, 42, 8143.         [ Links ]

9. Gisin, B. F.; Helv. Chim. Acta. 1973, 56, 1476;         [ Links ] Anuradha, M. V.; Ravindranath, B.; Tetrahedron 1995, 51, 5671.         [ Links ]

10. Salunkhe, A. M.; Ramachandran, P. V.; Brown, H. C.; Tetrahedron 2002, 58, 10059;         [ Links ] Bosch, I.; Costa, A. M.; Martin, M.; Urpi, F.; Vilarrasa, J.; Org. Lett. 2000, 2, 397;         [ Links ] Ding, J. C.; Wu, H. Y.; Chin. Chem. Lett. 2001, 12, 662;         [ Links ] Kamal, A.; Reddy, G. S. K.; Reddy, K. L.; Tetrahedron Lett. 2001, 42, 6969;         [ Links ] Kamal, A.; Reddy, K. S.; Prasad, B. R.; Babu, A. H.; Ramana, A. V.; Tetrahedron Lett. 2004, 45, 6517.         [ Links ]

11. Frenette, R.; Friesen, R. W.; Tetrahedron Lett. 1994, 35, 9177.         [ Links ]

12. Perrin, D. D.; Armarego, W. L. F.; Purification of Laboratory Chemicals, 3rd ed., Pergamon Press: Oxford, 1988.         [ Links ]

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License