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Antar Ahmed Abdelhamid

Assistant Professor - استاذ مساعد

Faculty of science

Address: Dr.

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Publications Which contain the keyword: ionic liquid

Morpholinium hydrogen sulfate (MHS) ionic liquid as an efficient catalyst for the synthesis of bio-active multi-substituted imidazoles (MSI) under solvent-free conditions

2018-10-05 14:14:27 Keywords biological activity, efficient catalyst , four-component reaction, imidazoles, ionic liquid, non-chromatographic method,
Morpholinium hydrogen sulfate (MHS) ionic liquid as an efficient catalyst for the synthesis of bio-active multi-substituted imidazoles (MSI) under solvent-free conditions
Morpholinium hydrogen sulfate as an ionic liquid was employed as a catalyst for the synthesis of a biologically active series of multi-substituted imidazoles by a four-component reaction involving the combination of benzil with different aromatic aldehydes, ammonium acetate, and 1-amino-2-propanol under solvent-free con-ditions. The key advantages of this method are shorter reaction times, very high yield, and ease of processing. ... Read more

Multicomponent green synthesis, spectroscopic and structural investigation of multi-substituted imidazoles. Part 1

2018-10-05 14:19:40 Keywords Brønsted acids, green chemistry, imidazoles, ionic liquid, molecular structures, multicomponent reactions,
Multicomponent green synthesis, spectroscopic and structural investigation of multi-substituted imidazoles. Part 1
Ten 1,2,4,5-tetra-substituted imidazole deriva-tives have been synthesized with a 2-hydroxyethy sub-stituent at the 1-nitrogen atom and potentially electron releasing hydroxy-, methoxy-, dimethylamino- or nitro substituents in various positions on the benzene ring located on the 2-carbon atom. The prototypical derivative with an unsubstituted phenyl ring at the 2-position is also reported. The compounds are obtained in excellent yields (average 86 ... Read more

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