Oxazol‐2‐amines were synthesized by annulation of α‐amino ketones and isothiocyanates. This sequential synthetic process involves addition of α‐amino ketones to isothiocyanates and I₂‐promoted desulfurative cyclization omitting isolation of the less stable thiourea intermediates. It is transition metal‐free and operationally simple, providing access to a variety of 2‐amino substituted oxazole derivatives under mild reaction conditions.

中文翻译：

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通过顺序加成和I2介导的脱硫环化反应，由α-氨基酮和异硫氰酸酯合成2-氨基取代的恶唑

草酸-2-胺是通过环α-氨基酮和异硫氰酸酯合成的。该顺序合成过程涉及将α-氨基酮添加至异硫氰酸酯和I ₂促进的脱硫环化反应，从而省去了较不稳定的硫脲中间体的分离。它不含过渡金属，操作简单，可在温和的反应条件下使用各种2-氨基取代的恶唑衍生物。