4′-(2H-tetrazol-5-yl)-[1,1′-biphenyl]-4-carboxylic acid: Synthetic approaches, single crystal X-ray structures and antimicrobial activity of intermediates
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ARDELEANU, Rodinel, DASCĂLU, Andrei Ioan, SHOVA, Sergiu, NICOLESCU, Alina Florica, ROŞCA, Irina, BRATANOVICI, Bogdan Ionel, LOZAN, Vasile, ROMAN, Gheorghe. 4′-(2H-tetrazol-5-yl)-[1,1′-biphenyl]-4-carboxylic acid: Synthetic approaches, single crystal X-ray structures and antimicrobial activity of intermediates. In: Journal of Molecular Structure, 2018, nr. 1173, pp. 63-71. ISSN 0022-2860. DOI: https://doi.org/10.1016/j.molstruc.2018.06.086
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Journal of Molecular Structure
Numărul 1173 / 2018 / ISSN 0022-2860

4′-(2H-tetrazol-5-yl)-[1,1′-biphenyl]-4-carboxylic acid: Synthetic approaches, single crystal X-ray structures and antimicrobial activity of intermediates

DOI:https://doi.org/10.1016/j.molstruc.2018.06.086

Pag. 63-71

Ardeleanu Rodinel1, Dascălu Andrei Ioan1, Shova Sergiu1, Nicolescu Alina Florica1, Roşca Irina1, Bratanovici Bogdan Ionel12, Lozan Vasile13, Roman Gheorghe1
 
1 “Petru Poni” Institute of Macromolecular Chemistry,
2 Alexandru Ioan Cuza University of Iaşi,
3 Institute of Chemistry of the Academy of Sciences of Moldova
 
 
Disponibil în IBN: 7 august 2018


Rezumat

Two synthetic approaches towards 4′-(2H-tetrazol-5-yl)-[1,1′-biphenyl]-4-carboxylic acid, a valuable organic ligand for the preparation of metal-organic frameworks, are reported. The first reaction sequence leading to the target compound comprises the iodination of [1,1′-biphenyl]-4-carboxylic acid, formation of the methyl ester of 4′-iodo-[1,1′-biphenyl]-4-carboxylic acid, nucleophilic substitution of iodine with cyano, ring closure of tetrazole, and hydrolysis of the ester function. The second synthetic pathway starts from 4-bromobenzonitrile, which is converted through Suzuki coupling with 4-carboxyphenylboronic acid into 4′-cyano-[1,1′-biphenyl]-4-carboxylic acid, which in turn leads to the desired compound after ring closure of tetrazole. All of the synthesized compounds have been fully characterized by IR and 1H- and 13C-NMR spectroscopy. Single crystal X-ray structures are reported for the target compound and for methyl esters of 4′-iodo-[1,1′-biphenyl]-4-carboxylic acid and 4′-cyano-[1,1′-biphenyl]-4-carboxylic acid. The target compound and the intermediates showed no antimicrobial activity against Escherichia coli, Staphylococcus aureus and Candida albicans.

Cuvinte-cheie
Antimicrobial activity, Tetrazole,

Multistep synthesis, Organic ligand, Single crystal X-ray structure

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