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Your search keyword '"Redon, Sébastien"' showing total 3 results
Start Over Author "Redon, Sébastien" Topic ring formation (chemistry) Journal tetrahedron letters: international organ for the rapid publication of preliminary communications in organic chemistry
3 results on '"Redon, Sébastien"'

1. A new oxa-Michael reaction and a gold-catalysed cyclisation en route to C-glycosides

Author

Redon, Sébastien, Wierzbicki, Michel, and Prunet, Joëlle

Subjects
*MICHAEL reaction, *GOLD catalysts, *RING formation (Chemistry), *GLYCOSIDES, *ORGANIC synthesis, *CHEMICAL reactions
Abstract

Abstract: Two new syntheses of benzyl C-glycosides have been developed. The first one involves an unprecedented oxa-Michael cyclisation and the second one relies on an efficient gold-catalysed ring-closure. [Copyright &y& Elsevier]

Published
2013
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2. Diastereoselective transannular [2+2] photocycloaddition of ascorbic acid derivatives

Author

Redon, Sébastien and Piva, Olivier

Subjects
*VITAMIN C, *ORGANIC compounds, *RING formation (Chemistry), *STEREOCHEMISTRY
Abstract

Abstract: Ring-closing metathesis of bis-O,O-alkenyl ascorbic acid derivatives affords cyclic ethers in good yields which can be further converted by irradiation at 254nm into new polyoxacyclic structures according to a diastereoselective transannular [2+2] photocycloaddition. [Copyright &y& Elsevier]

Published
2006
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3. One-pot preparation of 2-(alkyl)arylbenzoselenazoles from the corresponding N-(acetyl)benzoyl-2-iodoanilines via a microwave-assisted methodology.

Author

Redon, Sébastien, Kabri, Youssef, Crozet, Maxime D., and Vanelle, Patrice

Subjects
*MICROWAVE chemistry, *CHEMICAL reactions, *CHEMICAL engineering, *CHEMISTRY, *RING formation (Chemistry), *CHEMICAL reagents
Abstract

We report here the first example of a one-pot synthesis of 2-(alkyl)arylbenzoselenazoles from N -(acetyl)benzoyl-2-iodoanilines. The reaction was carried out in the presence of Woollins’ reagent under microwave irradiation and resulted in moderate to good yields. [ABSTRACT FROM AUTHOR]

Published
2014
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