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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Copper Reactivity Can Be Tuned to Catalyze the Stereoselective Synthesis of 2-Deoxyglycosides from Glycals

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Author(s):
Palo-Nieto, Carlos [1] ; Sau, Abhijit [1] ; Jeanneret, Robin [1] ; Payard, Pierre-Adrien [2] ; Salame, Aude [2] ; Martins-Teixeira, Maristela Braga [3] ; Carvalho, Ivone [3] ; Grimaud, Laurence [2] ; Galan, M. Carmen [1]
Total Authors: 9
Affiliation:
[1] Univ Bristol, Sch Chem, Bristol BS8 3TS, Avon - England
[2] Sorbonne Univ, Ecole Normale Super, CNRS, Lab Biomol LBM, F-75005 Paris - France
[3] Univ Sao Paulo, Sch Pharmaceut Sci Ribeirao Preto, BR-14040903 Monte Alegre do Sul - Brazil
Total Affiliations: 3
Document type: Journal article
Source: ORGANIC LETTERS; v. 22, n. 5, p. 1991-1996, MAR 6 2020.
Web of Science Citations: 1
Abstract

We demonstrate that tuning the reactivity of Cu by the choice of oxidation state and counterion leads to the activation of both ``armed{''} and ``disarmed{''} type glycals toward direct glycosylation leading to the alpha-stereoselective synthesis of deoxyglycosides in good to excellent yields. Mechanistic studies show that Cu-I is essential for effective catalysis and stereocontrol and that the reaction proceeds through dual activation of both the enol ether as well as the OH nucleophile. (AU)

FAPESP's process: 16/21194-6 - Synthesis of 2-deoxyglycoside derivatives of anthracyclines
Grantee:Maristela Braga Martins Teixeira
Support Opportunities: Scholarships abroad - Research Internship - Doctorate