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Aerobic amine oxidation is an attractive and elegant process for the α functionalization of amines. However, there are still several mechanistic uncertainties, particularly the factors governing the regioselectivity of the oxidation of asymmetric secondary amines and the oxidation rates of mixed primary amines. Herein, it is reported that singlet‐oxygen‐mediated oxidation of 1° and 2° amines is sensitive...
The synthesis of two differentially protected GluNAc-β(1->4)-GluA and GluA-β(1->3)-GluNAc disaccharide modules for the solid-phase assembly of hyaluronic acid are described. A periodic acid/chromium trioxide oxidation was the key transformation to facilitate access to the glucuronic acid moiety from glucose and should find wide application in the oxidation of primary alcohols.
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