A mild and efficient methodology has been developed for the synthesis of spiro-1,3-oxazine derivatives by the microwave assisted cyclization of N-2-(1′-cyclohexenyl)ethyl-acetamides/benzamides. The reaction was catalyzed by in situ generated trimethylsilyl iodide and featured by its very short reaction time. The starting materials were easily obtained by the condensation of substituted acetic/benzoic acids with 2-(1′-cyclohexenyl)ethyl amine.

中文翻译：

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N-（2-（cyclohex-1-en-1-yl）ethyl）amides简便的微波辅助合成spiro-1,3-oxazines

已经开发了一种温和有效的方法，用于通过微波辅助环化N -2-（1'-环己烯基）乙基-乙酰胺/苯甲酰胺来合成spiro-1,3-恶嗪衍生物。原位生成的三甲基甲硅烷基碘化物可催化该反应，其反应时间非常短。通过使取代的乙酸/苯甲酸与2-（1'-环己烯基）乙胺缩合，可以容易地获得起始原料。