SYNTHESES AND CHARACTERISATION OF DIUREA MOLECULAR TWEESORS FOR THE RECOGNITION OF ANION

Two novel urea anion receptors (11) and (12) were synthesized from building block 3,3' methylene diamine and was characterized via the techniques of ¹H NMR, 13CNMR, DEPT- 135 ¹H-¹H COSY, HMQC and HMBC spectroscopy. The ¹H NMR profile of both compounds reveals diagnostic peaks. For compound (11)...

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Autor principal:	JAGESSAR,R. C
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2013
Materias:	Novel urea receptors 3 3'-methylene diamine scaffold spectroscopic techniques integration pattern dicarboxylate anion
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000400069
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spelling	oai:scielo:S0717-970720130004000692014-09-02SYNTHESES AND CHARACTERISATION OF DIUREA MOLECULAR TWEESORS FOR THE RECOGNITION OF ANIONJAGESSAR,R. C Novel urea receptors 3 3'-methylene diamine scaffold spectroscopic techniques integration pattern dicarboxylate anion Two novel urea anion receptors (11) and (12) were synthesized from building block 3,3' methylene diamine and was characterized via the techniques of ¹H NMR, 13CNMR, DEPT- 135 ¹H-¹H COSY, HMQC and HMBC spectroscopy. The ¹H NMR profile of both compounds reveals diagnostic peaks. For compound (11), the urea NH protons resonate as two singlets downfield at 8.706 ppm and 8.635 ppm, whereas for compound (12) these two urea -NHCONH protons resonate together at 8.614 ppm. There seem to be no rotation of the structure on the NMR time scale as the bridged CH2 protons resonate as a singlet. The integration pattern for the aromatic hydrogens for both compounds is: 2: 4: 2: 4: 4, consistent with the structure. 13CNMR spectrums reveal fourteen signals for both structures in accordance with fourteen different types of carbon. Dept-135 indicates eight different CH protons. Preliminary anion binding studies via ¹HNMR spectroscopy revealed complexation with dicarboxylate anions in the highly competitive solvent, d6-DMSO.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.58 n.4 20132013-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000400069en10.4067/S0717-97072013000400069
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Novel urea receptors 3 3'-methylene diamine scaffold spectroscopic techniques integration pattern dicarboxylate anion
spellingShingle	Novel urea receptors 3 3'-methylene diamine scaffold spectroscopic techniques integration pattern dicarboxylate anion JAGESSAR,R. C SYNTHESES AND CHARACTERISATION OF DIUREA MOLECULAR TWEESORS FOR THE RECOGNITION OF ANION
description	Two novel urea anion receptors (11) and (12) were synthesized from building block 3,3' methylene diamine and was characterized via the techniques of ¹H NMR, 13CNMR, DEPT- 135 ¹H-¹H COSY, HMQC and HMBC spectroscopy. The ¹H NMR profile of both compounds reveals diagnostic peaks. For compound (11), the urea NH protons resonate as two singlets downfield at 8.706 ppm and 8.635 ppm, whereas for compound (12) these two urea -NHCONH protons resonate together at 8.614 ppm. There seem to be no rotation of the structure on the NMR time scale as the bridged CH2 protons resonate as a singlet. The integration pattern for the aromatic hydrogens for both compounds is: 2: 4: 2: 4: 4, consistent with the structure. 13CNMR spectrums reveal fourteen signals for both structures in accordance with fourteen different types of carbon. Dept-135 indicates eight different CH protons. Preliminary anion binding studies via ¹HNMR spectroscopy revealed complexation with dicarboxylate anions in the highly competitive solvent, d6-DMSO.
author	JAGESSAR,R. C
author_facet	JAGESSAR,R. C
author_sort	JAGESSAR,R. C
title	SYNTHESES AND CHARACTERISATION OF DIUREA MOLECULAR TWEESORS FOR THE RECOGNITION OF ANION
title_short	SYNTHESES AND CHARACTERISATION OF DIUREA MOLECULAR TWEESORS FOR THE RECOGNITION OF ANION
title_full	SYNTHESES AND CHARACTERISATION OF DIUREA MOLECULAR TWEESORS FOR THE RECOGNITION OF ANION
title_fullStr	SYNTHESES AND CHARACTERISATION OF DIUREA MOLECULAR TWEESORS FOR THE RECOGNITION OF ANION
title_full_unstemmed	SYNTHESES AND CHARACTERISATION OF DIUREA MOLECULAR TWEESORS FOR THE RECOGNITION OF ANION
title_sort	syntheses and characterisation of diurea molecular tweesors for the recognition of anion
publisher	Sociedad Chilena de Química
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000400069
work_keys_str_mv	AT jagessarrc synthesesandcharacterisationofdiureamoleculartweesorsfortherecognitionofanion
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SYNTHESES AND CHARACTERISATION OF DIUREA MOLECULAR TWEESORS FOR THE RECOGNITION OF ANION

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