Mechanochemo-enzymatic Synthesis of Aromatic Aldehyde Oxime Esters
The synthesis of aromatic aldehyde oxime esters (considered fragrances, antifungal and antimicrobial compounds) was achieved by two reactions which combine the advantage of green chemistry and biocatalysis. In the first step, the mechanochemical oxime synthesis by means of grindstone milling of six...
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crsagepubl:10.1177/1934578x1801300723 2024-09-15T17:43:26+00:00 Mechanochemo-enzymatic Synthesis of Aromatic Aldehyde Oxime Esters Arthur-Santiago, Margarita A. Oliart-Ros, Rosa María Sánchez-Otero, María G. Valerio-Alfaro, Gerardo 2018 http://dx.doi.org/10.1177/1934578x1801300723 http://journals.sagepub.com/doi/pdf/10.1177/1934578X1801300723 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license Natural Product Communications volume 13, issue 7, page 1934578X1801300 ISSN 1934-578X 1555-9475 journal-article 2018 crsagepubl https://doi.org/10.1177/1934578x1801300723 2024-07-22T04:32:06Z The synthesis of aromatic aldehyde oxime esters (considered fragrances, antifungal and antimicrobial compounds) was achieved by two reactions which combine the advantage of green chemistry and biocatalysis. In the first step, the mechanochemical oxime synthesis by means of grindstone milling of six solid aromatic aldehydes and hydroxylamine hydrochloride in the presence of Florisil R , as the best support, yielded the aromatic aldehyde oximes 1–6 with high purity and good yields. In the second step the lipase catalyzed acetylation reaction at 40°C for three days of those oximes with vinyl and isopropenyl acetates as acyl donor substrates and ethyl acetate as the solvent, yielded the aromatic aldehyde oxime esters. With Candida antarctica lipase (Novozyme 435), the conversions of oximes 1–6 into their esters were ≥ 99% according to the 1 H NMR results and it was the best biocatalyst compared with others such as Candida rugosa (CRL), porcine pancreas lipase and the recombinant lipase LipMatCCR11 from the thermophilic strain Geobacillus thermoleovorans CCR11 cloned and expressed in Escherichia coli BL21 (DE3), all of which showed lower yields. Article in Journal/Newspaper Antarc* Antarctica SAGE Publications Natural Product Communications 13 7 1934578X1801300 |
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Open Polar |
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SAGE Publications |
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English |
description |
The synthesis of aromatic aldehyde oxime esters (considered fragrances, antifungal and antimicrobial compounds) was achieved by two reactions which combine the advantage of green chemistry and biocatalysis. In the first step, the mechanochemical oxime synthesis by means of grindstone milling of six solid aromatic aldehydes and hydroxylamine hydrochloride in the presence of Florisil R , as the best support, yielded the aromatic aldehyde oximes 1–6 with high purity and good yields. In the second step the lipase catalyzed acetylation reaction at 40°C for three days of those oximes with vinyl and isopropenyl acetates as acyl donor substrates and ethyl acetate as the solvent, yielded the aromatic aldehyde oxime esters. With Candida antarctica lipase (Novozyme 435), the conversions of oximes 1–6 into their esters were ≥ 99% according to the 1 H NMR results and it was the best biocatalyst compared with others such as Candida rugosa (CRL), porcine pancreas lipase and the recombinant lipase LipMatCCR11 from the thermophilic strain Geobacillus thermoleovorans CCR11 cloned and expressed in Escherichia coli BL21 (DE3), all of which showed lower yields. |
format |
Article in Journal/Newspaper |
author |
Arthur-Santiago, Margarita A. Oliart-Ros, Rosa María Sánchez-Otero, María G. Valerio-Alfaro, Gerardo |
spellingShingle |
Arthur-Santiago, Margarita A. Oliart-Ros, Rosa María Sánchez-Otero, María G. Valerio-Alfaro, Gerardo Mechanochemo-enzymatic Synthesis of Aromatic Aldehyde Oxime Esters |
author_facet |
Arthur-Santiago, Margarita A. Oliart-Ros, Rosa María Sánchez-Otero, María G. Valerio-Alfaro, Gerardo |
author_sort |
Arthur-Santiago, Margarita A. |
title |
Mechanochemo-enzymatic Synthesis of Aromatic Aldehyde Oxime Esters |
title_short |
Mechanochemo-enzymatic Synthesis of Aromatic Aldehyde Oxime Esters |
title_full |
Mechanochemo-enzymatic Synthesis of Aromatic Aldehyde Oxime Esters |
title_fullStr |
Mechanochemo-enzymatic Synthesis of Aromatic Aldehyde Oxime Esters |
title_full_unstemmed |
Mechanochemo-enzymatic Synthesis of Aromatic Aldehyde Oxime Esters |
title_sort |
mechanochemo-enzymatic synthesis of aromatic aldehyde oxime esters |
publisher |
SAGE Publications |
publishDate |
2018 |
url |
http://dx.doi.org/10.1177/1934578x1801300723 http://journals.sagepub.com/doi/pdf/10.1177/1934578X1801300723 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Natural Product Communications volume 13, issue 7, page 1934578X1801300 ISSN 1934-578X 1555-9475 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1177/1934578x1801300723 |
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Natural Product Communications |
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13 |
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7 |
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1934578X1801300 |
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1810490411187175424 |