Polymer-Supported Triazenes as Smart Reagents for the Alkylation of Carboxylic AcidsBernhard Erb, Jean-Philippe Kucma, Sandrine Mourey, Fritz Struber
Chemistry - A European Journal Volume 9, Issue 11, 2582-2588,2003. DOI:
10.1002/chem.20039024
Abstract:
Starting from polystyrene, a simple four-step synthesis of polymer-supported alkyltriazenes (alkyl=Me, Et, benzyl) is described. With
this synthesis, a loading capacity of 2.2 mmolÊg-1 can be reached. The most prominent application of these polymer-supported reagents is the rapid, highly selective and high-yielding esterification of carboxylic acids, which involves a simple mix and filter off procedure at room temperature. If stored in a refrigerator, these reagents are stable for many months and they can be recycled several times.
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