Further Studies with Ethyl 5‐Amino‐3‐phenyl‐lH‐pyrazole‐4‐carboxylate1

doi:10.1002/JHET.1802

Paper

Further Studies with Ethyl 5‐Amino‐3‐phenyl‐lH‐pyrazole‐4‐carboxylate1

Published Jul 1, 2014 · S. A. Ghozlan, F. M. Abdelrazek, Mona H. Mohammed

Journal of Heterocyclic Chemistry

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Abstract

The newly synthesized ethyl 3-amino-5-phenylpyrazole-4-carboxylate 1 was diazotized and coupled with β-naphthol, active methylene reagents 6, 9, 12, 15, and the active methine 19 to afford the pyrazolo[5,1-c]triazines 5, 8, 11, 14, 17, 18, and the pyrazolo[5,1-c]-1,2,4-triazoles 21, 22, and 23, respectively. Structures are elucidated and mechanisms are discussed.

Study Snapshot

This study synthesizes ethyl 3-amino-5-phenylpyrazole-4-carboxylate 1, which is coupled with -naphthol, active methylene reagents, and methine to produce pyrazolo[5,1-c]

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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Paper

Further Studies with Ethyl 5‐Amino‐3‐phenyl‐lH‐pyrazole‐4‐carboxylate1

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The synthesized compounds show moderate molluscicidal activity towards Biomphalaria alexandrina snails.

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This study presents a simple method for the synthesis and selective functionalization of 4,5-diaminopyrazoles using mild conditions, resulting in good yields and confirmed structures by X-ray crystallography.

New 7‐substituted quinolone antibacterial agents. II. The synthesis of 1‐ethyl‐1,4‐dihydro‐4‐oxo‐7‐(pyrazolyl, isoxazolyl, and pyrimidinyl)‐1,8‐naphthyridine and quinolone‐3‐carboxylic acids

New 7-substituted quinolone antibacterial agents have been synthesized, with pyrimidinyl analogs showing substantial antibacterial activity.

Studies on 5-aminopyrazole derivatives synthesis of some new fused pyrazole derivatives

5-Amino-4-cyano-3-phenylpyrazole (1) reacts with acrylonitrile or ethyl acrylate to produce 4-cyano-3-phenyl-4,5,6,7-tetrahydro-5-oxopyrazolo-[1,5-a

Reactions with heterocyclic amidines, VII: Synthesis of some new pyrazolo[1,5-c]-1,2,4-triazines, pyrazolo[1,5-a]-1,3,5-triazines and pyrazolo[1,5-a]pyrimidines

Diazotized 5-amino-3-methyl-4-phenylpyrazole (1) reacts with active methylene reagents and -naphthol to produce new pyrazolo[1,5-c]-1,2,4-triazine derivatives, and

DNA sequencing with chain-terminating inhibitors.

The new DNA sequencing method using chain-terminating inhibitors is faster and more accurate than the plus and minus methods.

A novel synthesis of some new benzoyl-substituted heterocycles from 2-benzoyl-3-phenylpent-2-ene-1,5-dinitrile

This study presents a novel synthesis of new benzoyl-substituted heterocycles from 2-benzoyl-3-phenylpent-2-ene-1,5-dinitrile, leading to thiophene 4, 4H-thiopyran 6, 4H-1,2-o

Citations

Methods of Synthesis for the Azolo[1,2,4]Triazines

Azolo[X,Y-c][1,2,4]triazines can be synthesized using various methods, with their biological activity being described.