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Synthesis of 2-aryloxy acids analogues of clofibrate via dynamic kinetic resolution

✍ Scribed by Rosa Amoroso; Giancarlo Bettoni; Barbara De Filippis; Maria Luisa Tricca


Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
79 KB
Volume
11
Category
Article
ISSN
0899-0042

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✦ Synopsis


A dynamic kinetic resolution process using (4S)-4-isopropyl-1,3oxazolidin-2-one as chiral auxiliary was developed. Starting from equimolar mixtures of 2-bromoimides, the nucleophilic displacement of bromine with 4-chlorophenoxide was found to proceed with good diastereoselectivity. The chiral auxilary was easily removed to afford enantiomerically pure analogues of clofibrate.


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Enantioselective Synthesis of Chiral Ξ²-A
✍ Zhang-Tao Zhou; Jian-Hua Xie; Qi-Lin Zhou πŸ“‚ Article πŸ“… 2009 πŸ› John Wiley and Sons 🌐 English βš– 174 KB πŸ‘ 1 views

## Abstract magnified image A catalytic enantioselective hydrogenation of racemic α‐aryloxy aldehydes __via__ dynamic kinetic resolution has been developed by using (diamine)(spirodiphosphine)ruthenium(II) chloride [RuCl~2~(SDPs)(diamine)] catalysts. Employing this new reaction system a variety of