Heterogeneous Diazo-Transfer Reaction: A Facile Unmasking of Azide Groups on Amine-Functionalized Insoluble Supports for Solid-Phase Synthesis
作者:A. K. Oyelere、P. C. Chen、L. P. Yao、N. Boguslavsky
DOI:10.1021/jo0618122
日期:2006.12.1
direct nucleophilic displacement of appropriately activated supports by the azide ion. This reaction usually proceeds rather sluggishly under harsh conditions. Here, we report that triflyl azide rapidly reacts with a series of amine-functionalized solid supports to generate azide-coated supports under mild conditions. Further, we demonstrate that the “azide coat” allows facile loading of alkyne-functionalized