Aromatic Amines in Organic Synthesis. Part II. <i>p</i>-Aminocinnamaldehydes

Ten derivatives of <i>p</i>-aminocinnamic aldehydes were prepared from the reaction of either aromatic amines with dimethylaminoacrolein or benzaldehydes with acetaldehyde. Their chemical structure and purity were verified by <sup>1</sup>H NMR, <sup>13</sup>C NMR...

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Main Authors: Marek Pietrzak, Beata Jędrzejewska
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/26/14/4360
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author Marek Pietrzak
Beata Jędrzejewska
author_facet Marek Pietrzak
Beata Jędrzejewska
author_sort Marek Pietrzak
collection DOAJ
description Ten derivatives of <i>p</i>-aminocinnamic aldehydes were prepared from the reaction of either aromatic amines with dimethylaminoacrolein or benzaldehydes with acetaldehyde. Their chemical structure and purity were verified by <sup>1</sup>H NMR, <sup>13</sup>C NMR and IR spectroscopic methods. We found that the synthesis applying dimethylaminoacrolein as the reagent gets better yields than the one based on the reaction with acetaldehyde. The yields of the cinnamic aldehydes varied according to the type of the amino group and the number and position of the substituents. The basic spectroscopic properties of the <i>p</i>-aminocinnamic aldehydes are also described since the compounds may be a precursor for the synthesis of dyes for diverse applications, e.g., in medicine and optoelectronics.
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spelling doaj.art-40677a82c10c42658a984150e3422d5f2023-11-22T04:32:37ZengMDPI AGMolecules1420-30492021-07-012614436010.3390/molecules26144360Aromatic Amines in Organic Synthesis. Part II. <i>p</i>-AminocinnamaldehydesMarek Pietrzak0Beata Jędrzejewska1Faculty of Chemical Technology and Engineering, UTP University of Sciences and Technology, Seminaryjna 3, 85-326 Bydgoszcz, PolandFaculty of Chemical Technology and Engineering, UTP University of Sciences and Technology, Seminaryjna 3, 85-326 Bydgoszcz, PolandTen derivatives of <i>p</i>-aminocinnamic aldehydes were prepared from the reaction of either aromatic amines with dimethylaminoacrolein or benzaldehydes with acetaldehyde. Their chemical structure and purity were verified by <sup>1</sup>H NMR, <sup>13</sup>C NMR and IR spectroscopic methods. We found that the synthesis applying dimethylaminoacrolein as the reagent gets better yields than the one based on the reaction with acetaldehyde. The yields of the cinnamic aldehydes varied according to the type of the amino group and the number and position of the substituents. The basic spectroscopic properties of the <i>p</i>-aminocinnamic aldehydes are also described since the compounds may be a precursor for the synthesis of dyes for diverse applications, e.g., in medicine and optoelectronics.https://www.mdpi.com/1420-3049/26/14/4360aromatic aldehydes<i>p</i>-aminocinnamaldehydeextended bond system
spellingShingle Marek Pietrzak
Beata Jędrzejewska
Aromatic Amines in Organic Synthesis. Part II. <i>p</i>-Aminocinnamaldehydes
Molecules
aromatic aldehydes
<i>p</i>-aminocinnamaldehyde
extended bond system
title Aromatic Amines in Organic Synthesis. Part II. <i>p</i>-Aminocinnamaldehydes
title_full Aromatic Amines in Organic Synthesis. Part II. <i>p</i>-Aminocinnamaldehydes
title_fullStr Aromatic Amines in Organic Synthesis. Part II. <i>p</i>-Aminocinnamaldehydes
title_full_unstemmed Aromatic Amines in Organic Synthesis. Part II. <i>p</i>-Aminocinnamaldehydes
title_short Aromatic Amines in Organic Synthesis. Part II. <i>p</i>-Aminocinnamaldehydes
title_sort aromatic amines in organic synthesis part ii i p i aminocinnamaldehydes
topic aromatic aldehydes
<i>p</i>-aminocinnamaldehyde
extended bond system
url https://www.mdpi.com/1420-3049/26/14/4360
work_keys_str_mv AT marekpietrzak aromaticaminesinorganicsynthesispartiiipiaminocinnamaldehydes
AT beatajedrzejewska aromaticaminesinorganicsynthesispartiiipiaminocinnamaldehydes