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Your search keyword '"Plantier-Royon, Richard"' showing total 3 results
Start Over Author "Plantier-Royon, Richard" Journal tetrahedron letters: international organ for the rapid publication of preliminary communications in organic chemistry
3 results on '"Plantier-Royon, Richard"'

1. <atl>Dienophilic reactivity of perfluoroalkenyl ketones in Diels–Alder reactions

Author

Chanteau, Frédéric, Essers, Michael, Plantier-Royon, Richard, Haufe, Günter, and Portella, Charles

Subjects
*DIELS-Alder reaction, *CARBONYL compounds
Abstract

Perfluoroalkenyl ketones, obtained by reaction of perfluoroorganometallic reagents with acylsilanes, are shown to be versatile dienophiles in Diels–Alder reactions with various dienes. [Copyright &y& Elsevier]

Published
2002
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2. Convenient strategy for the synthesis of highly functionalizable hydroxylated unsaturated azepanes

Author

Goumain, Sophie, Taghzouti, Hanaa, Portella, Charles, Behr, Jean-Bernard, and Plantier-Royon, Richard

Subjects
*HYDROXYLATION, *UNSATURATED compounds, *HETEROCYCLIC compounds, *FUNCTIONAL groups, *METHYL groups, *XYLOSE, *ALLYLAMINES, *OLEFINATION reactions
Abstract

Abstract: A convenient approach to the construction of dihydroxylated unsaturated azepanes featuring a functional group (ethoxycarbonyl)methyl or (cyano)methyl at C-2 was achieved from a pent-4-enal synthon obtained in four steps from d-xylose. The key step of the sequence relied on the conjugate addition of allylamine to α,β-unsaturated ester or nitrile, prepared by Wadsworth–Emmons olefination. Subsequent RCM afforded the target unsaturated azepanes. [Copyright &y& Elsevier]

Published
2012
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3. Enzymatic synthesis of alkyl arabinofuranosides using a thermostable α-l-arabinofuranosidase

Author

Rémond, Caroline, Ferchichi, Mounir, Aubry, Nathalie, Plantier-Royon, Richard, Portella, Charles, and O'Donohue, Michael J.

Subjects
*GLYCOSYLTRANSFERASES, *ALCOHOLS (Chemical class)
Abstract

A thermostable α-l-arabinofuranosidase was tested for its ability to perform transglycosylation with different alcohol acceptors. Reactions were characterized by high rates with optimal synthesis being obtained within 10 min. Both primary and secondary alcohols could act as acceptors in transarabinosylation but yields of alkyl arabinosides decreased with increasing alkyl chain length. [Copyright &y& Elsevier]

Published
2002

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