Deoxy-nitrosugars. 11th Communication. Reactions of 1-C-nitroglycosyl halides and 1-C-nitroglycosyl sulfones with dialkyl-phosphite anions: Nucleophilic attackvs. single-electron transfer
作者:Roger Meuwly、Andrea Vasella
DOI:10.1002/hlca.19850680426
日期:1985.6.26
Treatment of the chloro-nitro-ribofuranose 7 with KPO(OMe)2 gave the O-amino phosphate 8 (5 %) and the nitrile 9 (62 %). Compound 9 was also obtained by the reaction of 8 with KPO(OMe)2, and its structure was established by X-ray analysis. Treatment of the chloro-nitro-mannofuranose 10, the bromo-nitro-ribofuranose 14, or the bromo-nitro-mannofuranose 16, respectively, with the K or Na salt of HPO(OMe)2
Deoxy-nitrosugars. 9th communication. Chain elongation of 1-C -nitroglycosyl halides by substitution with some weakly basic carbanions
作者:Bernrd Aebischer、Roger Meuwly、Andrea Vesella
DOI:10.1002/hlca.19840670828
日期:1984.12.19
The 1-C-nitroglycosyl chloride reacted with the anions form 2-nitropropane, nitromethane, and diethyl malonate, to give the chain-extended products 2 (81%), 5 (72%), and 6 (83%), respectively. Treatment of the 1-C -nitroglycosyl bromide 7 by the lithium salt obtained form 8 gave the dodecodiulose derivative 9 (76%). Th β-D-configuration of 2 and 9 was inferred form their NMR and CD spectra. Treatment
Desoxy-nitrozucker. 3. Mitteilung. Synthese von Ketosen durch Kettenverlängerung von 1-Desoxy-1-nitro-aldosen. Nucleophile Additionen und Solvolyse von Nitroaethern
作者:Bernard Aebischer、Jost H. Bieri、Roland Prewo、Andrea Vasella
DOI:10.1002/hlca.19820650730
日期:1982.11.3
Synthesis of Ketoses by Chain Elongation of 1-Deoxy-1-nitroaldoses. Nucleophilic Additions and Solvolysis of Nitro Ethers