Simplified Procedure for General Synthesis of Monosubstituted Piperazines—From a Batch Reaction Vessel to a Flow (Microwave) Reactor

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Publikace nespadá pod Pedagogickou fakultu, ale pod Přírodovědeckou fakultu. Oficiální stránka publikace je na webu muni.cz.
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NĚMEČKOVÁ Dana HAVRÁNKOVÁ Eva ŠIMBERA Jan ŠEVČÍK Richard PAZDERA Pavel

Rok publikování 2020
Druh Článek v odborném periodiku
Časopis / Zdroj Molecules
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www https://doi.org/10.3390/molecules25092168
Doi http://dx.doi.org/10.3390/molecules25092168
Klíčová slova piperazine; monosubstituted; derivative; heterocyclic; catalysis; heterogeneous; microwave; synthesis; supported catalyst; reactor
Popis We reported a novel simplified synthetic procedure for the preparation of monosubstituted piperazine derivatives which can now be easily prepared in a one-pot-one-step way from a protonated piperazine with no need of introduction of a protecting group. Reactions, proceeding either at room or higher temperatures in common solvents, involve heterogeneous catalysis by metal ions supported on commercial polymeric resins. A general synthetic scheme was successfully applied to afford a wide range of monosubstituted piperazines. Furthermore, we picked up a set of piperazine derivatives and studied the possibilities of microwave acceleration of given synthetic reactions to make them even more efficient. Our research proceeded from a simple batch technique to the construction of a flow microwave reactor prototype and resulted in promising findings which are summarized and discussed in the article.
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