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Design of a well-defined, silica-supported chiral Zn scaffold for enantioselective catalysis.

By Jérémy Ternel, Laurent Delevoye, Francine Agbossou-Niedercorn, Thierry Roisnel, Régis Gauvin and Christophe Thomas

Abstract

International audienceNew compound Zn[(S,S)-iPr-pybox](Et)(2) (1) was fully characterized, including by X-ray diffraction structural studies. Its grafting onto partially dehydroxylated silica affords material 2, which bears well-defined chiral ([triple bond]SiO)Zn[(S,S)-iPr-pybox](Et) sites. Hybrid material 2 displays significantly better catalytic performances than 1 in enantioselective silylcyanation, thus demonstrating a beneficial grafting effect

Topics: [CHIM.CATA]Chemical Sciences/Catalysis
Publisher: 'Royal Society of Chemistry (RSC)'
Year: 2010
DOI identifier: 10.1039/c003552c
OAI identifier: oai:HAL:hal-00738775v1
Provided by: HAL-Artois
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