88222-67-7Relevant academic research and scientific papers
HIGHLY STEREOSELECTIVE C-α-D-RIBOFURANOSYLATION. REACTIONS OF D-RIBOFURANOSYL FLUORIDE DERIVATIVES WITH ENOL TRIMETHYLSILYL ETHERS AND ALLYLTRIMETHYLSILANE
Araki, Younosuke,Kobayashi, Naoki,Ishido, Yoshiharu,Nagasawa, Jun'ichi
, p. 125 - 140 (2007/10/02)
2,3,5-Tri-O-methyl-D-ribofuranosyl fluoride (6), 2,3-di-O-benzyl-5-O-methyl-D-ribofuranosyl fluoride (7), and 5-O-benzyl-2,3-di-O-methyl-D-ribo-furanosyl fluoride (8) were obtained in 57 (6α, 15; and 6β, 42), 87 (7α, 22; and 7β, 65) and 85.5 (8α, 35.5; an
Lewis Acid-mediated α-Alkoxyalkylation of Carbonyl Compounds Using α-Halo and α-Acetoxy Ethers. - Synthesis of C-Glycosides
Reetz, Manfred T.,Mueller-Starke, H.
, p. 1726 - 1738 (2007/10/02)
α-Chloro and α-acetoxy ethers such as 2a-b or 4a-b react with silyl enol ethers, O-silylketene acetals, and bis-silylated acyloins in the presence of ZnX2 to form α-alkoxylalkylated carbonyl compounds.The ambident alkylating agent 36 reacts regioselectively at the oxygen-substituted C-atom to afford products such as 39, 41, and 43.The method is mild, regiospecific with respect to isomeric silyl enol ethers and does not afford undesired polyalkylated products.It can be applied in the synthesis of C-glycosides such as 52, 54, and 55.
