<i>N</i>-Acetylation of Amines in Continuous-Flow with Acetonitrile—No Need for Hazardous and Toxic Carboxylic Acid Derivatives

A continuous-flow acetylation reaction was developed, applying cheap and safe reagent, acetonitrile as acetylation agent and alumina as catalyst. The method developed utilizes milder reagent than those used conventionally. The reaction was tested on various aromatic and aliphatic amines with good co...

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Main Authors: György Orsy, Ferenc Fülöp, István M. Mándity
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/25/8/1985
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author György Orsy
Ferenc Fülöp
István M. Mándity
author_facet György Orsy
Ferenc Fülöp
István M. Mándity
author_sort György Orsy
collection DOAJ
description A continuous-flow acetylation reaction was developed, applying cheap and safe reagent, acetonitrile as acetylation agent and alumina as catalyst. The method developed utilizes milder reagent than those used conventionally. The reaction was tested on various aromatic and aliphatic amines with good conversion. The catalyst showed excellent reusability and a scale-up was also carried out. Furthermore, a drug substance (paracetamol) was also synthesized with good conversion and yield.
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spelling doaj.art-1d1d90260ad74ef0b4abcdd3cc68aefc2023-11-19T22:32:19ZengMDPI AGMolecules1420-30492020-04-01258198510.3390/molecules25081985<i>N</i>-Acetylation of Amines in Continuous-Flow with Acetonitrile—No Need for Hazardous and Toxic Carboxylic Acid DerivativesGyörgy Orsy0Ferenc Fülöp1István M. Mándity2Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös u. 6, H-6720 Szeged, HungaryInstitute of Pharmaceutical Chemistry, University of Szeged, Eötvös u. 6, H-6720 Szeged, HungaryMTA TTK Lendület Artificial Transporter Research Group, Institute of Materials and Environmental Chemistry, Research Center for Natural Sciences, Hungarian Academy of Sciences, Magyar Tudosok krt. 2, 1117 Budapest, HungaryA continuous-flow acetylation reaction was developed, applying cheap and safe reagent, acetonitrile as acetylation agent and alumina as catalyst. The method developed utilizes milder reagent than those used conventionally. The reaction was tested on various aromatic and aliphatic amines with good conversion. The catalyst showed excellent reusability and a scale-up was also carried out. Furthermore, a drug substance (paracetamol) was also synthesized with good conversion and yield.https://www.mdpi.com/1420-3049/25/8/1985flow chemistryacetylationacetonitrilesafegreen chemistry
spellingShingle György Orsy
Ferenc Fülöp
István M. Mándity
<i>N</i>-Acetylation of Amines in Continuous-Flow with Acetonitrile—No Need for Hazardous and Toxic Carboxylic Acid Derivatives
Molecules
flow chemistry
acetylation
acetonitrile
safe
green chemistry
title <i>N</i>-Acetylation of Amines in Continuous-Flow with Acetonitrile—No Need for Hazardous and Toxic Carboxylic Acid Derivatives
title_full <i>N</i>-Acetylation of Amines in Continuous-Flow with Acetonitrile—No Need for Hazardous and Toxic Carboxylic Acid Derivatives
title_fullStr <i>N</i>-Acetylation of Amines in Continuous-Flow with Acetonitrile—No Need for Hazardous and Toxic Carboxylic Acid Derivatives
title_full_unstemmed <i>N</i>-Acetylation of Amines in Continuous-Flow with Acetonitrile—No Need for Hazardous and Toxic Carboxylic Acid Derivatives
title_short <i>N</i>-Acetylation of Amines in Continuous-Flow with Acetonitrile—No Need for Hazardous and Toxic Carboxylic Acid Derivatives
title_sort i n i acetylation of amines in continuous flow with acetonitrile no need for hazardous and toxic carboxylic acid derivatives
topic flow chemistry
acetylation
acetonitrile
safe
green chemistry
url https://www.mdpi.com/1420-3049/25/8/1985
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