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Publications associées (26)

Efficient Asymmetric Synthesis of Long-Chain Polyketides Containing up to Ten Contiguous Stereogenic Centres by Double Chain Elongation

Pierre Vogel, Rosario Scopelliti, Maris Turks

The 2,3-anti-3,4-syn-stereotriad (1Z,2S,3R,4S)-1-ethylidene-2,4-dimethyl-3-[(1S)-1-phenylethoxy]-5-oxopent-1-yl isobutyrate {(-)-8, obtained in a one-pot operation from the trimethylsilyl (Z)-enol ether derived from pentan-3-one and (1E,3Z)-1[(1S)-phenylet ...

2011

Carbon Dioxide as the C1 Source for Direct C−H Functionalization of Aromatic Heterocycles

Xile Hu, Oleg Vechorkin, Nathalie Hirt

A simple and straightforward method has been developed for the direct carboxylation of aromatic heterocylces such as oxazoles, thiazoles, and oxadiazoles using CO2 as the C1 source. The reactions require no metal catalyst and only Cs2CO3 as the base. A goo ...

American Chemical Society2010

Direct Alkynylation of Indole and Pyrrole Heterocycles

Jérôme Waser, Jonathan Brand, Julie Charpentier

Easy does it: The unique properties of benziodoxolone alkynyl periodinane 1 and gold catalysts have allowed the development of a high yielding, operationally simple (room temperature, no dry solvents or inert conditions, commercially available catalyst) re ...

Wiley-VCH Verlag GmbH2009

Use of sultines in the asymmetric synthesis of polypropionate antibiotics

Pierre Vogel, Maris Turks, Cotinica Craita, Freddy Fonquerne, Laure Bouchez, Christopher Flowers, Xiaogen Huang

At low temperature and in the presence of an acid catalyst, SO2 adds to 1,3-dienes equilibrating with the corresponding 3,6-dihydro-1,2-oxathiin-2-oxides (sultines). These compounds are unstable above -60 degrees C and equilibrate with the more stable 2,5- ...

De Gruyter2008

Chemical investigations on the thermal behaviour of wood during friction welding

Bernhard Stamm, Julius Natterer

Friction welding is a new technology in the course of which wood pieces are subjected to circular or linear movements in a welding machine. The wood in the contact zone is heated and melted. Aiming at a better understanding of the thermal alteration of woo ...

2006

Fluoronaphthalene building blocks via arynes: A solution to the problem of positional selectivity

Eric Masson

When 3-fluoro- and 3-chloro-1,2-didehydrobenzenes are generated in the presence of 2-(trimethylsilyl)furan, two regioisomeric cycloadducts are formed in a 1:2 ratio. However, regioselectivity can be installed by fitting one bulky trimethylsilyl group into ...

2005

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