Synthesis of 4-Amino-5-imidazolecarbonitrile and 4-Amino-5-imidazolecarboxamide from 4, 5-Dicyanoimidazole

Synthesis of 5-amino-1-aryl-4-cyanoimidazoles from formamidines under solvent-free condition

The aryl-(Z)-N-[2-amino-1,2-dicyanovinyl]formamidine 2 cyclize in solvent-free conditions and in the presence of a base to give a 5-amino-1-aryl-4-cyanoimidazoles 3. Silica sulfuric acid as an efficient and reusable heterogeneous catalyst has been used for the preparation of amidines 2 from formimidate 1 through reaction with aromatic amines at room temperature and in good to excellent yields. ...

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Synthesis of 5-amino-1-aryl-4-cyanoimidazoles from formamidines under solvent-free condition

The aryl-(Z)-N-[2-amino-1,2-dicyanovinyl]formamidine 2 cyclize in solvent-free conditions and in the presence of a base to give a 5-amino-1-aryl-4-cyanoimidazoles 3. Silica sulfuric acid as an efficient and reusable heterogeneous catalyst has been used for the preparation of amidines 2 from formimidate 1 through reaction with aromatic amines at room temperature and in good to excellent yields. ...

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Synthesis and Characterization of Some Lanthanide(III) Chloro Complexes Derived from 4[N-(4’-Hydroxy-3’-Methoxybenzalidene) Amino] Antipyrine Semicarbazone and 4[N-(3’,4’,5’-Trimethoxybenzalidene) Amino]Antipyrine Semicarbazone

Lanthanide(III) chloro complexes of 4[N-(4’-hydroxy-3’-methoxybenzalidene) amino] antipyrine semicarbazone (HMBAAPS) (I) and 4[N-(3’,4’,5’-trimethoxybenzalidene) amino] antipyrine semicarbazone (TMBAAPS) (II) with the general composition LnCl3.2L (Ln = La, Pr, Nd, Sm, Gd, Tb, Dy or Ho; L = HMBAAPS or TMBAAPS) are reported. All the complexes were synthesized in ethanolic medium and refluxed the ...

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The Incorporation of Radiocarbon from 4-amino-5- Imidazolecarboxamide into the Purines of Tumor-bearing

The compound 4-amino-5-imidazolecarboxamide first was isolated by Stetten and Fox (1) from the medium of Escherichia coli which had been inhibited by sulfonamides. It was identified by Shive et al. (2) and recognized as a possible precursor of nucleic acid purines. Schulman et al. (3) showed that pigeon liver homogenates can convert 4-amino-5-imidazolecarboxamide to hypoxanthine, whereas the in...

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The incorporation of radiocarbon from 4-amino-5-imidazolecarboxamide into the purines of tumor-bearing mice.

The compound 4-amino-5-imidazolecarboxamide first was isolated by Stetten and Fox (1) from the medium of Escherichia coli which had been inhibited by sulfonamides. It was identified by Shive et al. (2) and recognized as a possible precursor of nucleic acid purines. Schulman et al. (3) showed that pigeon liver homogenates can convert 4-amino-5-imidazolecarboxamide to hypoxanthine, whereas the in...

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Synthesis of 4-Amino-5-imidazolecarbonitrile and 4-Amino-5-imidazolecarboxamide from 4, 5-Dicyanoimidazole

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Synthesis of 5-amino-1-aryl-4-cyanoimidazoles from formamidines under solvent-free condition

Synthesis of 5-amino-1-aryl-4-cyanoimidazoles from formamidines under solvent-free condition

Synthesis and Characterization of Some Lanthanide(III) Chloro Complexes Derived from 4[N-(4’-Hydroxy-3’-Methoxybenzalidene) Amino] Antipyrine Semicarbazone and 4[N-(3’,4’,5’-Trimethoxybenzalidene) Amino]Antipyrine Semicarbazone

The Incorporation of Radiocarbon from 4-amino-5- Imidazolecarboxamide into the Purines of Tumor-bearing

The incorporation of radiocarbon from 4-amino-5-imidazolecarboxamide into the purines of tumor-bearing mice.

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