Continuous one-pot synthesis of new spiro-fused indoles from biobased building blocks using carbamoylation and imidation reactions under ultrasonic irradiation
Milene M. Hornink, Beatriz G. Rodrigues, Caroline S. Santos, Leandro H. Andrade
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引用次数: 0
Abstract
The application of a flow reactor under ultrasonic irradiation enabled the fast synthesis of new spiro-fused indoles in a one-pot methodology. The exploitation of the reactivity of biobased building blocks, including acrylic acids and formamides, was essential to achieve such highly functionalized molecular targets. A four-step process with a 2–3 min residence time, and no aqueous work-up, created spiro[indoline-succinimides], spiro[indole-pyrrolo-succinimides] and spiro[indole-pyrido-succinimides] with high overall yields.
期刊介绍：
The main focus of the journal is flow chemistry in inorganic, organic, analytical and process chemistry in the academic research as well as in applied research and development in the pharmaceutical, agrochemical, fine-chemical, petro- chemical, fragrance industry.
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