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Liu, Xing; Zhu, Hui; Zhang, Shi-Bo; Cheng, Yu; Peng, Han-Ying and Dong, Zhi-Bing (2018): Facile synthesis of S-arylisothioureas via the S-arylation of arylthioureas with aryl iodides in water. In: Tetrahedron Letters, Vol. 59, No. 33: pp. 3165-3170

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An environmentally benign, simple and highly efficient protocol for the synthesis of S-arylisothiourea derivatives has been achieved in good to excellent yields by reacting a series of aryl iodides with arylthioureas, using inexpensive CuSO4 center dot 5H(2)O as catalyst in water without PTC (phase transfer catalyst). The protocol features easy performance, good to excellent yields, good tolerance towards a variety of functional groups, which could be useful for the preparation of some biologically active compounds.

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