Electrochemical NaI-mediated one-pot synthesis of guanidines from isothiocyanates <i>via</i> tandem addition-guanylation
作者:Thao Nguyen Thanh Huynh、Khuyen Thu Nguyen、Mongkol Sukwattanasinitt、Sumrit Wacharasindhu
DOI:10.1039/d3ob01113e
日期:——
conditions, we successfully demonstrated the formation of 30 different guanidine compounds, achieving yields ranging from fair to excellent. Furthermore, the synthesis method could be carried out on a gram scale with a good yield. This protocol stands out for its cost-effectiveness, step-economical design, high tolerance towards various functional groups, and environmentally friendly reaction conditions
在这项研究中,我们提出了一种在单个反应容器中从异硫氰酸酯和胺合成胍的电化学方法。这种一锅法操作在水性介质中进行,采用未分割的电池装置,NaI 作为电解质和介体。该过程涉及原位生成硫脲,然后用胺进行电解鸟苷化。在环境温度条件下,我们成功地证明了 30 种不同胍化合物的形成,收率从一般到优秀不等。此外,该合成方法可以在克级规模上进行,且收率良好。该方案以其成本效益、步骤经济的设计、对各种官能团的高耐受性以及环境友好的反应条件而脱颖而出。