An expedient approach for the synthesis of dispiropyrrolidine bisoxindoles, spiropyrrolidine oxindoles and spiroindane-1,3-diones through 1,3-dipolar cycloaddition reactions
作者:Neelakandan Vidhya Lakshmi、Prakasam Thirumurugan、Paramasivan T. Perumal
DOI:10.1016/j.tetlet.2009.12.079
日期:2010.2
A series of dispiropyrrolidine bisoxindoles were synthesized via a multicomponent 1,3-dipolarcycloadditionreaction of isatin, sarcosine and isatylidene malononitrile in refluxing methanol. Also a series of spiropyrrolidine oxindoles and spiroindane-1,3-diones were synthesized using 2-(1H-Indole-3-carbonyl)-3-phenyl-acrylonitrile and 2-(1,3-dioxo-indan-2-ylidene)-malononitrile as dipolarophiles, respectively