Aza-Michael Addition Reactions of Hydrazones with Activated Alkynes Catalyzed by Nitrogen-Containing Organic Bases
作者:Zhi-Liang Yuan、Yin Wei、Min Shi
DOI:10.1002/ejoc.201000365
日期:2010.7
2]-octane)-catalyzed Michael-type reactions of hydrazones with activatedalkynes are described in this paper. This aza-Michaeladditionreaction can be applied to different types of hydrazones, such as hydrazones 1 and hydroxy-bearing hydrazones 5. The corresponding adducts are achieved in high yields under mild reaction conditions. DABCO-promoted aza-Michaeladditionreactions were successfully applied to
A library of acylhydrazone iron chelators was synthesized and tested for its ability to inhibit the growth of a chloroquine-resistant strain of Plasmodium falciparum. Some of these new compounds are significantly more active than desferrioxamine DFO, the iron chelator in widespread clinical use and also than the most effective chelators. (c) 2005 Elsevier Ltd. All rights reserved.