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Alajos Gruuml;n Author
Subjects of specialization
Affiliation
Chemistry
Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, M?egyetem Hungary.
Biography
Dr Alajos Gruuml;n is currently working in th department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, M?egyetem Hungary. Doctor's research interests has brought a diverse range of national as well as international publications.
Publications
Short Communication Open Access
Newer developments in the microwave-assisted synthesis of potentially biologically active organophosphorus compounds
Author(s): György Keglevich*, Réka Henyecz, Nóra Zs Kiss, Nikoletta Harsági, Petra R. Varga, Bianka Huszár, and Alajos Grün
The microwave (MW) technique has become an important tool in organophosphorus chemistry. In this paper, the advantages of MWs in different reactions are surveyed allowing green chemical accomplishments. The first case is the MW-assisted direct esterification of phosphinic and phosphonic acids to phosphinates and phosphonates, respectively. These reactions do not take place on conventional heating. The higher enthalpy of activation may be overcome only by MW activation. It was also observed that the esterifications became more efficient in the presence of an ionic liquid catalyst. The phase transfer catalyzed (PTC) O-alkylation of phosphonic acids under MW irradiation is another option for the esterification. The opposite reaction, the acidic hydrolysis of the above mentioned P-esters we... view more»
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