N-chlorosuccinimde, selective oxyhalogenations of alkynes were achieved in water under very mild conditions. No halogenation at the aromatic rings was detected, and control experiments revealed the radical pathway. The easily conducted protocol exhibited high reproducibility, was readily adjusted to gram scale, and allowed for recycling of reaction medium and catalyst.
FI-750-M的使用胶束,可见光,光催化剂,和廉价的卤化试剂,如Ñ
溴代琥珀
酰亚胺和Ñ -chlorosuccinimde,
炔烃进行选择性oxyhalogenations在
水中非常温和的条件下实现的。在芳环上未检测到卤化,并且对照实验揭示了自由基途径。容易进行的实验方案显示出高再现性,易于调整至克级,并允许反应介质和催化剂的再循环。