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Addition of Difluorocarbene to 4‘,5‘-Unsaturated Nucleosides: Synthesis and Deoxygenation Reactions of Difluorospirocyclopropane Nucleosides 1

✍ Scribed by Nowak, Ireneusz; Robins, Morris J.


Book ID
120980881
Publisher
American Chemical Society
Year
2006
Tongue
English
Weight
229 KB
Volume
71
Category
Article
ISSN
0022-3263

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Addition of Grignard Reagents to 4-O-TPS
✍ Norbert Bischofberger 📂 Article 📅 1989 🏛 Elsevier Science 🌐 French ⚖ 277 KB

Methyl magnesium chloride, vinyl magnesium chloride and acetylides were found to add to 4-Otriisopropylphenylsulphonyl (TPS) uridine and thymidine derivatives at the 6-position leading to 6-substituted-3,6-dihydro-4-0-TPS pyrimidine nucleosides. Reaction with phenyl magnesium chloride resulted in ad