Amine-Catalyzed Addition of Azide Ion to α,β-Unsaturated Carbonyl Compounds
作者:David J. Guerin、Thomas E. Horstmann、Scott J. Miller
DOI:10.1021/ol9909076
日期:1999.10.1
[formula: see text] A new protocol for the beta-azidation of alpha,beta-unsaturated carbonylcompounds is described. The method employs tertiary amines as catalysts for azide addition. The azide source is a 1:1 mixture of TMSN3 and AcOH. Tertiary amines, either in solution or bound to a solid support, are efficient catalysts for the reaction.
Biodegradable oligomeric polyesters based upon hydroxy acids, such as glycolic acid (GA), lactic acid (LLA), and copolymers thereof are described. Composites that include biodegradable polyesters and bioabsorbable fillers are also described. The described polymers and composites are injectable and in situ curable.