REGIO AND STEREOSELECTIVE HYDROXYLATION OF A-AGAROFURAN BY BIOTRANSFORMATION OF RHIZOPUS NIGRICANS

A new synthesis of 9a-hydroxy-a-agarofuran (6a) is described, using a microbiological hydroxylation a-agarofuran (5) as the key reaction. The stereochemistry of the biohydroxylation was determined on the basis of a NOESY-experiment and GIAO calculations at the B3LYP/cc-pVDZ level. A strong g-effect...

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Autores principales: ALARCÓN,JULIO, ALDERETE,JOEL B, AGUILA,SERGIO, PETER,MARTIN G
Lenguaje:English
Publicado: Sociedad Chilena de Química 2005
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000400012
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spelling oai:scielo:S0717-970720050004000122006-04-19REGIO AND STEREOSELECTIVE HYDROXYLATION OF A-AGAROFURAN BY BIOTRANSFORMATION OF RHIZOPUS NIGRICANSALARCÓN,JULIOALDERETE,JOEL BAGUILA,SERGIOPETER,MARTIN G Agarofuran Synthesis Celastraceae Eudesmanes Microbiological hydroxylation Sesquiterpenes A new synthesis of 9a-hydroxy-a-agarofuran (6a) is described, using a microbiological hydroxylation a-agarofuran (5) as the key reaction. The stereochemistry of the biohydroxylation was determined on the basis of a NOESY-experiment and GIAO calculations at the B3LYP/cc-pVDZ level. A strong g-effect was observed at C15 of the agarofuran ring which was correctly predicted by the GIAO-B3LYP calculationsinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.50 n.4 20052005-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000400012en10.4067/S0717-97072005000400012
institution Scielo Chile
collection Scielo Chile
language English
topic Agarofuran Synthesis
Celastraceae
Eudesmanes
Microbiological hydroxylation
Sesquiterpenes
spellingShingle Agarofuran Synthesis
Celastraceae
Eudesmanes
Microbiological hydroxylation
Sesquiterpenes
ALARCÓN,JULIO
ALDERETE,JOEL B
AGUILA,SERGIO
PETER,MARTIN G
REGIO AND STEREOSELECTIVE HYDROXYLATION OF A-AGAROFURAN BY BIOTRANSFORMATION OF RHIZOPUS NIGRICANS
description A new synthesis of 9a-hydroxy-a-agarofuran (6a) is described, using a microbiological hydroxylation a-agarofuran (5) as the key reaction. The stereochemistry of the biohydroxylation was determined on the basis of a NOESY-experiment and GIAO calculations at the B3LYP/cc-pVDZ level. A strong g-effect was observed at C15 of the agarofuran ring which was correctly predicted by the GIAO-B3LYP calculations
author ALARCÓN,JULIO
ALDERETE,JOEL B
AGUILA,SERGIO
PETER,MARTIN G
author_facet ALARCÓN,JULIO
ALDERETE,JOEL B
AGUILA,SERGIO
PETER,MARTIN G
author_sort ALARCÓN,JULIO
title REGIO AND STEREOSELECTIVE HYDROXYLATION OF A-AGAROFURAN BY BIOTRANSFORMATION OF RHIZOPUS NIGRICANS
title_short REGIO AND STEREOSELECTIVE HYDROXYLATION OF A-AGAROFURAN BY BIOTRANSFORMATION OF RHIZOPUS NIGRICANS
title_full REGIO AND STEREOSELECTIVE HYDROXYLATION OF A-AGAROFURAN BY BIOTRANSFORMATION OF RHIZOPUS NIGRICANS
title_fullStr REGIO AND STEREOSELECTIVE HYDROXYLATION OF A-AGAROFURAN BY BIOTRANSFORMATION OF RHIZOPUS NIGRICANS
title_full_unstemmed REGIO AND STEREOSELECTIVE HYDROXYLATION OF A-AGAROFURAN BY BIOTRANSFORMATION OF RHIZOPUS NIGRICANS
title_sort regio and stereoselective hydroxylation of a-agarofuran by biotransformation of rhizopus nigricans
publisher Sociedad Chilena de Química
publishDate 2005
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000400012
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