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Formación universitaria

versão On-line ISSN 0718-5006

Resumo

SANTOS, Elvira; LEJARAZO, Eva F; VILCHIS-REYES, Miguel A  e  SUAREZ, Sara. Experimental and Combinatorial Chemistry Education: Preparation of Esters and Amides, using two Sources of Energy Thermal and Microwave. Form. Univ. [online]. 2011, vol.4, n.1, pp.3-12. ISSN 0718-5006.  http://dx.doi.org/10.4067/S0718-50062011000100002.

A series of laboratory experiments have been designed to enable students to solve problems through individual and collaborative experimental work using the fundamentals of combinatorial chemistry. Synthesis of esters of p-amino benzoic acid with primary alcohols, with an increasing number of carbon atoms, or branched alcohols has been used to see how the reactivity is modified. In addition, the effect of using two sources of energy was studied: heating by conduction and by microwave. On the other hand, synthesis of acetanilides with p-aminophenol or aniline was performed to compare the reactivity of aromatic amines. Students developed critical skills in organic chemistry lab and increased their skills to work as a team.

Palavras-chave : combinatorial chemistry; microwave; amides; structure-reactivity analysis.

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