Stereoselective syntheses of 1,2-dialkyl-1-phenyl cyclopentanes involving intramolecular carbolithiation of olefins
✍ Scribed by Alain Krief; Benoît Kenda; Christophe Maertens; Bruno Remacle
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- French
- Weight
- 520 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0040-4020
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📜 SIMILAR VOLUMES
4-methoxy and 4-(2-trimethylsilylethoxy)pyrimidine bases were attached to the 5position of the phenyl 2,3-dideoxy-l-seleno-glycero-pentofuranoside moiety. The presence of the silyl protecting group in the base is necessary to lead to neutral 13-anhydro nucleosides by inlramolecular glycosylafion. Th
Stereoselective Synthesis of 2',3'-Dideoxy-nucleosides via Intramolecular Glycosylation of Phenyl 1-Seleno-glycosides. Synthesis of 2',3'-Dideoxythymidine. -The intramolecular glycosylation of the coupling products (III) is examined. However, treatment with AgO-Tf and NaOH results only in the isol