Spectra of Azlactones. I. Azlactones Derived from Substituted Benzaldehydes and Hippuric and Nitrohippuric Acids

The absorption spectra of a series of azlactones obtained by condensation of hippuric acid, ο-, m- and p-nitrohippuric acids, with benzaldehyde and substituted benzaldehydes, have been determined in acetic acid solution up to 255 mµ. All the azlactones show a band of high intensity, each with a maxi...

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Autores principales: Bassi, D.A., Deulofeu, V., Ortega, F.A.F.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00027863_v75_n1_p171_Bassi
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spelling todo:paper_00027863_v75_n1_p171_Bassi2023-10-03T13:54:33Z Spectra of Azlactones. I. Azlactones Derived from Substituted Benzaldehydes and Hippuric and Nitrohippuric Acids Bassi, D.A. Deulofeu, V. Ortega, F.A.F. The absorption spectra of a series of azlactones obtained by condensation of hippuric acid, ο-, m- and p-nitrohippuric acids, with benzaldehyde and substituted benzaldehydes, have been determined in acetic acid solution up to 255 mµ. All the azlactones show a band of high intensity, each with a maximum varying with substitution, at 346-430 mµ. In some azlactones, a second, less intense band, with a maximum at 256-310 mµ is found. It is absent in azlactones where a nitro group is placed ortho or meta, in phenyls R1 or R2 (Formula I). Some correlations, between the position of the first maximum in the absorption spectra and the substituents, are described. © 1953, American Chemical Society. All rights reserved. Fil:Bassi, D.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Deulofeu, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ortega, F.A.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00027863_v75_n1_p171_Bassi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The absorption spectra of a series of azlactones obtained by condensation of hippuric acid, ο-, m- and p-nitrohippuric acids, with benzaldehyde and substituted benzaldehydes, have been determined in acetic acid solution up to 255 mµ. All the azlactones show a band of high intensity, each with a maximum varying with substitution, at 346-430 mµ. In some azlactones, a second, less intense band, with a maximum at 256-310 mµ is found. It is absent in azlactones where a nitro group is placed ortho or meta, in phenyls R1 or R2 (Formula I). Some correlations, between the position of the first maximum in the absorption spectra and the substituents, are described. © 1953, American Chemical Society. All rights reserved.
format JOUR
author Bassi, D.A.
Deulofeu, V.
Ortega, F.A.F.
spellingShingle Bassi, D.A.
Deulofeu, V.
Ortega, F.A.F.
Spectra of Azlactones. I. Azlactones Derived from Substituted Benzaldehydes and Hippuric and Nitrohippuric Acids
author_facet Bassi, D.A.
Deulofeu, V.
Ortega, F.A.F.
author_sort Bassi, D.A.
title Spectra of Azlactones. I. Azlactones Derived from Substituted Benzaldehydes and Hippuric and Nitrohippuric Acids
title_short Spectra of Azlactones. I. Azlactones Derived from Substituted Benzaldehydes and Hippuric and Nitrohippuric Acids
title_full Spectra of Azlactones. I. Azlactones Derived from Substituted Benzaldehydes and Hippuric and Nitrohippuric Acids
title_fullStr Spectra of Azlactones. I. Azlactones Derived from Substituted Benzaldehydes and Hippuric and Nitrohippuric Acids
title_full_unstemmed Spectra of Azlactones. I. Azlactones Derived from Substituted Benzaldehydes and Hippuric and Nitrohippuric Acids
title_sort spectra of azlactones. i. azlactones derived from substituted benzaldehydes and hippuric and nitrohippuric acids
url http://hdl.handle.net/20.500.12110/paper_00027863_v75_n1_p171_Bassi
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AT ortegafaf spectraofazlactonesiazlactonesderivedfromsubstitutedbenzaldehydesandhippuricandnitrohippuricacids
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