๐”– Bobbio Scriptorium
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Synthesis and Reactions of Unsaturated Sugars

โœ Scribed by Robert J. Ferrier; John O. Hoberg


Book ID
101964578
Publisher
John Wiley and Sons
Year
2004
Weight
47 KB
Volume
35
Category
Article
ISSN
0931-7597

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[1,3]-Dipolar intramolecular nitrone ole
โœ Santosh M Jachak; Navnath P Karche; Dilip D Dhavale ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 92 KB

The reaction of hemiacetal 2a, from the sugar derived a,b-unsaturated ester 1a, with N-benzylhydroxylamine hydrochloride in situ generates an N-benzylnitrone as a 1,3-dipole, which spontaneously undergoes diastereo-and regioselective intramolecular nitrone olefin cycloaddition to afford a hydroxy fu