Preparation of tagged glucose as a key intermediate in the synthesis of branched oligosaccharides
β Scribed by Sunil K. Upadhyay; Branko S. Jursic
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- French
- Weight
- 412 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Preparation of the "Ziegler key intermediate" 2from lactone 3, readily obtained from hydroxy-O-ionone, was studied. In a first exploratory approach, lactones 11 and 13 were obtained but further transformations aimed at setting the ring junction were unsuccessful due to unexpected rearrangements. Thr
Asymmetric synthesis of (S)-5 has been accomplished with an excellent enantiomeric excess by hydrogenation of raeemie 5 using ruthenium-BINAP-diamine-KOH system, followed by oxidation. Magnesium enolate of (2S)-2-methoxycyclohexanone [(S)-5] reacts with the 4-aeetoxyazetidinone 4 to give the key int