Readily available 1‐sulfonyl‐1,2,3‐triazole and benzoquinone‐derived alcohols were employed in a synthesis protocol for the formation of α‐(2‐hydroxyphenyl)‐α‐aminoketone. The cascade reaction includes the formation of rhodium carbene, O−H bond 1,3‐insertion, Claisen rearrangement as well as aromatization. Valuable benzoxazinone and 3‐aminobenzofuran were obtained after one‐step derivatization. Moreover, an estrone derivative was modified via the protocol with extraordinary efficiency.

中文翻译：

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1-铑，1,2,3-三唑与苯醌衍生醇的铑催化串联反应合成α-（2-羟基苯基）-α-氨基酮

在合成方案中使用了现成的1-磺酰基-1,2,3-三唑和苯醌衍生的醇来形成α-（2-羟苯基）-α-氨基酮。级联反应包括铑卡宾的形成，OH键1,3插入，克莱森重排以及芳构化。一步衍生化后可获得有价值的苯并恶嗪酮和3-氨基苯并呋喃。此外，通过该协议对雌酮衍生物进行了高效修饰。