Some heteroleptic boron derivatives and their isomers derived from Schiff bases and glycol: synthesis, characterization and antimicrobial activities
Some new heteroleptic boron derivatives of the type [where R=CH3, R′=(CH2)2(2a); (CH2)3(2b); CH(CH3)CH2(2c), R=C6H5, R′=(CH2)2(2d); (CH2)3(2e); CH(CH3)CH2(2f)] have been synthesized by the reactions of tri-isopropyl borate with bifunctional tridentate Schiff bases and 2,2-dimethyl propane 1,3-diol...
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doaj-d1ae9462c40a4680b8d4350c79b38f592021-10-02T19:24:00ZengDe GruyterMain Group Metal Chemistry0792-12412191-02192016-04-01391-291810.1515/mgmc-2015-0023Some heteroleptic boron derivatives and their isomers derived from Schiff bases and glycol: synthesis, characterization and antimicrobial activitiesJangir Vinita0Sharma Jyoti1Sharma Ram Avatar2Singh Yashpal3Department of Chemistry, University of Rajasthan, Jaipur 302004, IndiaDepartment of Chemistry, University of Rajasthan, Jaipur 302004, IndiaDepartment of Botany, University of Rajasthan, Jaipur 302004, IndiaDepartment of Chemistry, University of Rajasthan, Jaipur 302004, IndiaSome new heteroleptic boron derivatives of the type [where R=CH3, R′=(CH2)2(2a); (CH2)3(2b); CH(CH3)CH2(2c), R=C6H5, R′=(CH2)2(2d); (CH2)3(2e); CH(CH3)CH2(2f)] have been synthesized by the reactions of tri-isopropyl borate with bifunctional tridentate Schiff bases and 2,2-dimethyl propane 1,3-diol in 1:1:1 molar ratio in refluxing benzene. Four isomers of corresponding heteroleptic derivatives 2a, 2b, 2e and 2f having the general formula [where R=CH3, R′=(CH2)2 (3a); (CH2)3 (3b), R=C6H5, R′=(CH2)3 (3e); CH(CH3)CH2 (3f) have also been synthesized by adopting different synthetic two-step processes. All these compounds have been characterized by elemental analyses, and their tentative structures have been proposed on the basis of IR, 1H, 13C, 11B NMR spectroscopic and FAB mass spectrometric studies. Schiff base ligands and their corresponding heteroleptic boron derivatives (2a–f) have also been screened for antimicrobial activities against pathogenic bacteria and fungi.https://doi.org/10.1515/mgmc-2015-0023antimicrobial activity1h, 13c, 11b nmr spectroscopyheteroleptic derivatives of boronmass spectrometryschiff base ligandstetra-coordinated boron |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jangir Vinita Sharma Jyoti Sharma Ram Avatar Singh Yashpal |
spellingShingle |
Jangir Vinita Sharma Jyoti Sharma Ram Avatar Singh Yashpal Some heteroleptic boron derivatives and their isomers derived from Schiff bases and glycol: synthesis, characterization and antimicrobial activities Main Group Metal Chemistry antimicrobial activity 1h, 13c, 11b nmr spectroscopy heteroleptic derivatives of boron mass spectrometry schiff base ligands tetra-coordinated boron |
author_facet |
Jangir Vinita Sharma Jyoti Sharma Ram Avatar Singh Yashpal |
author_sort |
Jangir Vinita |
title |
Some heteroleptic boron derivatives and their isomers derived from Schiff bases and glycol: synthesis, characterization and antimicrobial activities |
title_short |
Some heteroleptic boron derivatives and their isomers derived from Schiff bases and glycol: synthesis, characterization and antimicrobial activities |
title_full |
Some heteroleptic boron derivatives and their isomers derived from Schiff bases and glycol: synthesis, characterization and antimicrobial activities |
title_fullStr |
Some heteroleptic boron derivatives and their isomers derived from Schiff bases and glycol: synthesis, characterization and antimicrobial activities |
title_full_unstemmed |
Some heteroleptic boron derivatives and their isomers derived from Schiff bases and glycol: synthesis, characterization and antimicrobial activities |
title_sort |
some heteroleptic boron derivatives and their isomers derived from schiff bases and glycol: synthesis, characterization and antimicrobial activities |
publisher |
De Gruyter |
series |
Main Group Metal Chemistry |
issn |
0792-1241 2191-0219 |
publishDate |
2016-04-01 |
description |
Some new heteroleptic boron derivatives of the type [where R=CH3, R′=(CH2)2(2a); (CH2)3(2b); CH(CH3)CH2(2c), R=C6H5, R′=(CH2)2(2d); (CH2)3(2e); CH(CH3)CH2(2f)] have been synthesized by the reactions of tri-isopropyl borate with bifunctional tridentate Schiff bases and 2,2-dimethyl propane 1,3-diol in 1:1:1 molar ratio in refluxing benzene. Four isomers of corresponding heteroleptic derivatives 2a, 2b, 2e and 2f having the general formula [where R=CH3, R′=(CH2)2 (3a); (CH2)3 (3b), R=C6H5, R′=(CH2)3 (3e); CH(CH3)CH2 (3f) have also been synthesized by adopting different synthetic two-step processes. All these compounds have been characterized by elemental analyses, and their tentative structures have been proposed on the basis of IR, 1H, 13C, 11B NMR spectroscopic and FAB mass spectrometric studies. Schiff base ligands and their corresponding heteroleptic boron derivatives (2a–f) have also been screened for antimicrobial activities against pathogenic bacteria and fungi. |
topic |
antimicrobial activity 1h, 13c, 11b nmr spectroscopy heteroleptic derivatives of boron mass spectrometry schiff base ligands tetra-coordinated boron |
url |
https://doi.org/10.1515/mgmc-2015-0023 |
work_keys_str_mv |
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1716846934716579840 |