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A New Synthetic Protocol for the Preparation of Carbodiimides Using a Hypervalent Iodine(III) Reagent

Chenjie Zhu, Dan Xu, Yunyang Wei*

*School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. of China, Email:

C. Zhu, D. Xu, Y. Wei, Synthesis, 2011, 711-714.

DOI: 10.1055/s-0030-1258414

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Dehydrosulfurization using a hypervalent iodine(III) reagent enables a simple and efficient preparation of symmetrical and unsymmetrical carbodiimides from the corresponding thioureas. The oxidation afforded carbodiimides in excellent yields and high selectivity. A possible mechanism for the transformation is proposed.

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Key Words

desulfurization, hypervalent iodine, Koser's Reagent, oxidations, carbodiimides, catalysis

ID: J66-Y2011-0510