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An eco-friendly tandem tosylation/Ferrier N-glycosylation of amines catalyzed by Er(OTf)3 in 2-MeTHF
Authors:Monica Nardi  Natividad Herrera Cano  Antonio De Nino  Maria Luisa Di Gioia  Loredana Maiuolo  Manuela Oliverio  Ana Santiago  Diletta Sorrentino  Antonio Procopio
Affiliation:1. Dipartimento di Chimica, Università della Calabria, Cubo 12C, 87036, Arcavacata di Rende, CS, Italy;2. Dipartimento di Agraria, Università Telematica San Raffaele, Via di Val Cannuta, 00166, 247 Rome, Italy;3. INFIQC, Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba 5000, Córdoba, Argentina;4. Dipartimento di Farmacia e Scienze della Salute e della Nutrizione, Università della Calabria, Arcavacata di Rende, CS 87036, Italy;5. Dipartimento di Scienze della Salute, Università Magna Graecia, Viale Europa, 88100, Germaneto, CZ, Italy
Abstract:Er(OTf)3 in 2-MeTHF provides a new and eco-friendly process for Ferrier glycosylation of sulfonamides and amino acids with various N-nucleophiles.The stereoselective synthesis of 2,3-unsaturated-N-pseudoglycals was carried out with 3,4,6-tri-O-acetyl-d-glucal and different nucleophiles affording good results in a short time.
Keywords:2-MeTHF  Glycosylation  Green chemistry  Sulfonamidoglycosides
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