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A new protocol for the beta-azidation of alpha,beta-unsaturated carbonyl co
mpounds is described, The method employs tertiary amines as catalysts for a
zide addition. The azide source is a 1:1 mixture of TMSN3 and AcOH. Tertiar
y amines, either in solution or bound to a solid support, are efficient cat
alysts for the reaction.