Different Schiff Bases—Structure, Importance and Classification

Schiff bases are a vast group of compounds characterized by the presence of a double bond linking carbon and nitrogen atoms, the versatility of which is generated in the many ways to combine a variety of alkyl or aryl substituents. Compounds of this type are both found in nature and synthesized in t...

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Main Authors: Edyta Raczuk, Barbara Dmochowska, Justyna Samaszko-Fiertek, Janusz Madaj
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/27/3/787
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author Edyta Raczuk
Barbara Dmochowska
Justyna Samaszko-Fiertek
Janusz Madaj
author_facet Edyta Raczuk
Barbara Dmochowska
Justyna Samaszko-Fiertek
Janusz Madaj
author_sort Edyta Raczuk
collection DOAJ
description Schiff bases are a vast group of compounds characterized by the presence of a double bond linking carbon and nitrogen atoms, the versatility of which is generated in the many ways to combine a variety of alkyl or aryl substituents. Compounds of this type are both found in nature and synthesized in the laboratory. For years, Schiff bases have been greatly inspiring to many chemists and biochemists. In this article, we attempt to present a new take on this group of compounds, underlining of the importance of various types of Schiff bases. Among the different types of compounds that can be classified as Schiff bases, we chose hydrazides, dihydrazides, hydrazones and mixed derivatives such as hydrazide–hydrazones. For these compounds, we presented the elements of their structure that allow them to be classified as Schiff bases. While hydrazones are typical examples of Schiff bases, including hydrazides among them may be surprising for some. In their case, this is possible due to the amide-iminol tautomerism. The carbon–nitrogen double bond present in the iminol tautomer is a typical element found in Schiff bases. In addition to the characteristics of the structure of these selected derivatives, and sometimes their classification, we presented selected literature items which, in our opinion, represent their importance in various fields well.
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spelling doaj.art-0d0534d8298d4ad086d55039aa50c3002023-11-23T17:12:26ZengMDPI AGMolecules1420-30492022-01-0127378710.3390/molecules27030787Different Schiff Bases—Structure, Importance and ClassificationEdyta Raczuk0Barbara Dmochowska1Justyna Samaszko-Fiertek2Janusz Madaj3Carbohydrate Chemistry Group, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, PolandCarbohydrate Chemistry Group, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, PolandCarbohydrate Chemistry Group, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, PolandCarbohydrate Chemistry Group, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, PolandSchiff bases are a vast group of compounds characterized by the presence of a double bond linking carbon and nitrogen atoms, the versatility of which is generated in the many ways to combine a variety of alkyl or aryl substituents. Compounds of this type are both found in nature and synthesized in the laboratory. For years, Schiff bases have been greatly inspiring to many chemists and biochemists. In this article, we attempt to present a new take on this group of compounds, underlining of the importance of various types of Schiff bases. Among the different types of compounds that can be classified as Schiff bases, we chose hydrazides, dihydrazides, hydrazones and mixed derivatives such as hydrazide–hydrazones. For these compounds, we presented the elements of their structure that allow them to be classified as Schiff bases. While hydrazones are typical examples of Schiff bases, including hydrazides among them may be surprising for some. In their case, this is possible due to the amide-iminol tautomerism. The carbon–nitrogen double bond present in the iminol tautomer is a typical element found in Schiff bases. In addition to the characteristics of the structure of these selected derivatives, and sometimes their classification, we presented selected literature items which, in our opinion, represent their importance in various fields well.https://www.mdpi.com/1420-3049/27/3/787Schiff baseshydrazidesdihydrazideshydrazoneshydrazide–hydrazones
spellingShingle Edyta Raczuk
Barbara Dmochowska
Justyna Samaszko-Fiertek
Janusz Madaj
Different Schiff Bases—Structure, Importance and Classification
Molecules
Schiff bases
hydrazides
dihydrazides
hydrazones
hydrazide–hydrazones
title Different Schiff Bases—Structure, Importance and Classification
title_full Different Schiff Bases—Structure, Importance and Classification
title_fullStr Different Schiff Bases—Structure, Importance and Classification
title_full_unstemmed Different Schiff Bases—Structure, Importance and Classification
title_short Different Schiff Bases—Structure, Importance and Classification
title_sort different schiff bases structure importance and classification
topic Schiff bases
hydrazides
dihydrazides
hydrazones
hydrazide–hydrazones
url https://www.mdpi.com/1420-3049/27/3/787
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AT barbaradmochowska differentschiffbasesstructureimportanceandclassification
AT justynasamaszkofiertek differentschiffbasesstructureimportanceandclassification
AT januszmadaj differentschiffbasesstructureimportanceandclassification