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Wu, He; Sun, Yan-Fang; Zhang, Chen; Miao, Chun-Bao; Yang, Hai-Tao
Tetrahedron letters, 02/2018, Letnik: 59, Številka: 8Journal Article
Display omitted •A new method for the synthesis of carbodiimides from thioureas catalyzed by DMAP is developed.•Di-tert-butyl dicarbonate (Boc)2O is used as a new dehydrosulfurizative reagent.•No more organic wastes are generated beside the SCO and t-BuOH. A concise method for the preparation of carbodiimides from thioureas using di-tert-butyl dicarbonate (Boc)2O as the dehydrosulfurizative reagent has been developed. Using DMAP as the catalyst, a variety of symmetric and asymmetric 1,3-diaryl thioureas were converted into the corresponding carbodiimides efficiently in a short time.
