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dc.contributor.author |
Amine Khodja Imène |
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dc.contributor.author |
Debache A. |
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dc.date.accessioned |
2022-05-25T08:18:18Z |
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dc.date.available |
2022-05-25T08:18:18Z |
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dc.date.issued |
2017-01-01 |
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dc.identifier.uri |
http://depot.umc.edu.dz/handle/123456789/8057 |
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dc.description |
180 f. |
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dc.description.abstract |
In this manuscript, we were interested in the development of the multi-component
reactions by the study of the catalytic power of some catalysts on the reaction of Biginelli, the
reaction of Hantzsch and the synthesis of pyrano[2.3-c]pyrazoles.
The first chapter concerns the synthesis of the 3,4-dihydropyrimidinones (DHPMs)
based on the general reaction of Biginelli, which is considered as one of the most important
MCRs, by using two catalysts: the Copper acetate (Lewis acid) and Pyridinium-ptoluenesufonate (complex liquid).
The second chapter is dedicated to the synthesis of a range varied by 1,4-
dihydropyridines (or DHPs) according to the general reaction of Hantzsch with some
modifications, which imply (involve) the absence of solvent and the use of " the salicylic acid
(carboxylic acid) and of Pyridinium-p-toluenesufonate " as an unusual catalyst of this reaction.
The third chapter concerns the catalytic study of two new catalysts in the synthesis of
pyrano[2.3-c]pyrazole, which are not only available, but also little expensive and little toxic,
namely: "phenylboronic acid and triphenylphosphine ". |
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dc.language.iso |
fre |
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dc.publisher |
Université Frères Mentouri - Constantine 1 |
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dc.subject |
Chimie |
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dc.title |
Etude des effets de quelques catalyseurs sur la preparation des 3,4-dihydropyrimidinones, des 1,4- dihydropyridines et des pyrano[2,3-c]pyrazoles |
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dc.coverage |
2 copies imprimées disponibles |
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