A ready asymmetric synthesis of 3Ј-oxathionucleosides has overall yield and considerable enantiomeric excesses. It represents a general synthetic path to prepare a wide range been accomplished in three main steps from benzoyloxyethanal. The synthesis is characterized by high of heterosubstituted sul
A New Iron-Mediated Strategy for the Synthesis of α-Lipoic Acid and Analogues
✍ Scribed by Christophe Crévisy; Benjamin Herbage; Marie-Laure Marrel; Loïc Toupet; René Grée
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 368 KB
- Volume
- 1998
- Category
- Article
- ISSN
- 1434-193X
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✦ Synopsis
α-Lipoic acid / Structural analogues / Tricarbonyl(η 5 -pentadienyl)iron cations / Carbonyliron complexes / Diimide reduction Dithioester 10 was synthesized in 6 steps from tricarbonyl-also be of interest for the preparation of various labelled compounds and structural analogues. (diene)iron complex 3. Compound 10 is not only a key intermediate for the synthesis of methyl lipoate (13) but could
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37 8C) and the mixture was filtered in a UltraFree MC 30 000 MWCO centrifugal filtration unit (Millipore) at 3500 g for 7 min at 37 8C. The concentration of free substrate in the filtrate was quantified by ICP-MS and the bound fraction was calculated as % bound ([total]-[free])/[total]. The proton T