An isocyanide based multi-component reaction under catalyst- and solvent-free conditions for the synthesis of unsymmetrical thioureas
作者:Karandeep Singh、Siddharth Sharma
DOI:10.1016/j.tetlet.2016.11.082
日期:2017.1
A new and efficient method for the synthesis of thiourea derivatives by a sequential one-pot, three-component reaction between aromatic isocyanides, amines, and 1,2-di-tert-butyldisulfane (DTBS) was developed and 27 different examples were synthesized in good to excellent yields. DTBS was identified as an effective sulfur surrogate without the use of both catalysts and solvents. This protocol does
通过芳族异氰酸酯,胺与1,2-二叔丁基二硫醚(DTBS)的顺序一锅三组分反应,开发了一种新的高效合成硫脲衍生物的方法,并在其中合成了27个不同的实例好到极好的产量。DTBS被认为是不同时使用催化剂和溶剂的有效硫替代物。该协议不使用任何过渡金属催化剂或特殊的实验装置。