Microwave-Assisted Three-Component Synthesis of Some Novel 1-Alkyl-1H-indole-2,3-dione 3-(O-Alkyloxime) Derivatives as Potential Chemotherapeutic Agents
作者:Mohammad Navid Soltani Rad、Ali Khalafi-Nezhad、Somayeh Babamohammadi、Somayeh Behrouz
DOI:10.1002/hlca.201000104
日期:2010.12
A convenient and efficient method for a one‐pot conversion of N‐alkylisatins to N‐alkylisatin O‐alkyloximes 7a–7n as potential chemotherapeutic agents is described (Scheme) (isatin=1H‐indole‐2,3‐dione). In this method, the microwave‐assisted three‐component reaction of N‐alkylisatins 8, hydroxylamine hydrochloride, and diverse alkyl halides in the presence of K2CO3 and Bu4NBr furnishes the corresponding
描述了一种简便有效的方法,可将N-烷基靛红一锅转化为N-烷基靛红O-烷基肟7a - 7n作为潜在的化学治疗剂(方案)(isatin = 1 H-吲哚-2,3-二酮)。在这种方法中,在K 2 CO 3和Bu 4 NBr存在下,微波辅助的N-烷基靛红8,羟胺盐酸盐和各种烷基卤的三组分反应提供了相应的N-烷基靛红O烷基肟在短时间内(2-10分钟)处于无溶剂条件下,收率良好至优异(62-83%)。原位生成的Isatin肟与烷基卤的O-烷基化是区域选择性的,(Z)-O-烷基肟占主导地位。进行了PM3半经验量子力学计算以使证据合理化,并且该计算表明(Z)-O-烷基肟的形成热较低。