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Synthesis of 2,4-disubstituted thiazole combinatorial unit on solid-phase: microwave assisted conversion of alcohol to amine monitored by FT-IR

Authors :
Graciela Mahler
Gloria Serra
Dyeison Antonow
Eduardo Manta
Vera Lucia Eifler-Lima
Source :
Repositório Institucional da UFRGS, Universidade Federal do Rio Grande do Sul (UFRGS), instacron:UFRGS, Journal of the Brazilian Chemical Society, Volume: 16, Issue: 3a, Pages: 477-481, Published: JUN 2005
Publication Year :
2005
Publisher :
FapUNIFESP (SciELO), 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. 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.

Details

ISSN :
01035053
Volume :
16
Database :
OpenAIRE
Journal :
Journal of the Brazilian Chemical Society
Accession number :
edsair.doi.dedup.....9ad85ce69c28d0642d497ffd0d76f08f
Full Text :
https://doi.org/10.1590/s0103-50532005000300023