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.

中文翻译：

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一种从硫脲和（Boc）₂ O制备碳二亚胺的简便方法

使用用于从硫脲制备碳化二亚胺的简明方法二-叔丁基二碳酸酯[（BOC）₂ O]作为dehydrosulfurizative试剂已经研制成功。使用DMAP作为催化剂，可以在短时间内将各种对称和不对称的1,3-二芳基硫脲有效地转化为相应的碳二亚胺。