Diversity-oriented approach to spirooxindoles: application of a green reagent ‘rongalite’
作者:Sambasivarao Kotha、Rashid Ali
DOI:10.1016/j.tetlet.2015.04.095
日期:2015.6
A range of functionalized spirooxindole derivatives have been assembled via the Diels–Alder (DA) reaction. Here, rongalite has been used to generate the key sultine building blocks which are useful latent diene equivalents in the DA chemistry. The di-bromo intermediates used here are produced by reacting the 1,2,4,5-tetrakis(bromomethyl)benzene with protected oxindole derivatives under operationally
通过Diels-Alder(DA)反应已经组装了一系列功能化的螺并吲哚衍生物。在这里,使用了钙铝矾石来生成关键的磺胺基砌块,它们是DA化学中有用的潜在二烯等效物。此处使用的二溴中间体是通过使1,2,4,5-四(溴甲基)苯与受保护的羟吲哚衍生物在操作简单的反应条件下反应制得的。在我们的研究中,我们避免了各种中间体的分离,从而降低了成本和与整个过程相关的工作量。