Synthesis of 3-Aroyl-4-heteroarylpyrrole Derivatives by the Van Leusen Method

The synthesis and structural diversification of <i>N</i>-heterocycles systems have attracted much attention because of their potential applications. Three 6-aryl-3-methyl-1-phenyl-1<i>H</i>-pyrazolo[3,4-<i>b</i>]pyridine-5-carbaldehyde <b>4</b> derivat...

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Main Authors: Jorge Trilleras, Jairo Quiroga, Angelina Hormaza
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Molbank
Subjects:
Online Access:https://www.mdpi.com/1422-8599/2022/1/M1341
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author Jorge Trilleras
Jairo Quiroga
Angelina Hormaza
author_facet Jorge Trilleras
Jairo Quiroga
Angelina Hormaza
author_sort Jorge Trilleras
collection DOAJ
description The synthesis and structural diversification of <i>N</i>-heterocycles systems have attracted much attention because of their potential applications. Three 6-aryl-3-methyl-1-phenyl-1<i>H</i>-pyrazolo[3,4-<i>b</i>]pyridine-5-carbaldehyde <b>4</b> derivatives, in reaction with acetophenones <b>5</b>, via conventional Claisen–Schmidt condensation reactions, generated the respective enones. The enones were used as electron-deficient olefins in a “<i>formal</i>” [2+3] cycloaddition reaction using <i>p</i>-tosylmethyl isocyanide—TosMIC <b>7</b>. This protocol allows access to 3-(substituted aroyl)-4-heteroaryl pyrrole derivatives by the Van Leusen method.
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spelling doaj.art-019e1f92181c4b13aa9c73900f8943f52023-11-30T21:39:41ZengMDPI AGMolbank1422-85992022-02-0120221M134110.3390/M1341Synthesis of 3-Aroyl-4-heteroarylpyrrole Derivatives by the Van Leusen MethodJorge Trilleras0Jairo Quiroga1Angelina Hormaza2Grupo de Investigación en Compuestos Heterocíclicos, Universidad del Atlántico, Puerto Colombia 08007, ColombiaGrupo de Investigación de Compuestos Heterocíclicos, Universidad del Valle, Cali 760032, ColombiaGrupo de Investigación en Síntesis, Reactividad y Transformación de Compuestos Orgánicos, Universidad Nacional de Colombia, Medellín 050022, ColombiaThe synthesis and structural diversification of <i>N</i>-heterocycles systems have attracted much attention because of their potential applications. Three 6-aryl-3-methyl-1-phenyl-1<i>H</i>-pyrazolo[3,4-<i>b</i>]pyridine-5-carbaldehyde <b>4</b> derivatives, in reaction with acetophenones <b>5</b>, via conventional Claisen–Schmidt condensation reactions, generated the respective enones. The enones were used as electron-deficient olefins in a “<i>formal</i>” [2+3] cycloaddition reaction using <i>p</i>-tosylmethyl isocyanide—TosMIC <b>7</b>. This protocol allows access to 3-(substituted aroyl)-4-heteroaryl pyrrole derivatives by the Van Leusen method.https://www.mdpi.com/1422-8599/2022/1/M13413,4-substituted pyrrole synthesisTosMICVan Leusen reaction
spellingShingle Jorge Trilleras
Jairo Quiroga
Angelina Hormaza
Synthesis of 3-Aroyl-4-heteroarylpyrrole Derivatives by the Van Leusen Method
Molbank
3,4-substituted pyrrole synthesis
TosMIC
Van Leusen reaction
title Synthesis of 3-Aroyl-4-heteroarylpyrrole Derivatives by the Van Leusen Method
title_full Synthesis of 3-Aroyl-4-heteroarylpyrrole Derivatives by the Van Leusen Method
title_fullStr Synthesis of 3-Aroyl-4-heteroarylpyrrole Derivatives by the Van Leusen Method
title_full_unstemmed Synthesis of 3-Aroyl-4-heteroarylpyrrole Derivatives by the Van Leusen Method
title_short Synthesis of 3-Aroyl-4-heteroarylpyrrole Derivatives by the Van Leusen Method
title_sort synthesis of 3 aroyl 4 heteroarylpyrrole derivatives by the van leusen method
topic 3,4-substituted pyrrole synthesis
TosMIC
Van Leusen reaction
url https://www.mdpi.com/1422-8599/2022/1/M1341
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AT angelinahormaza synthesisof3aroyl4heteroarylpyrrolederivativesbythevanleusenmethod