作者:Tetsuo Akiyama、Nobuaki Urasato、Takeshi Imagawa、Mituyosi Kawanisi
DOI:10.1246/bcsj.49.1105
日期:1976.4
The reaction of anhydrochloralurethanes (I) with ketene acetals (II) has been found to give novel carbamate derivatives (III) in quantitative yield. The intermediacy of a cyclic intermediate, an oxazine derivative (IV), was confirmed by spectroscopic methods, although several attempts to isolate IV have been unsuccessful. The mechanism for formation of IV is discussed.
已发现无水氯代氨基甲酸乙酯 (I) 与乙烯酮缩醛 (II) 的反应以定量产率得到新的氨基甲酸酯衍生物 (III)。通过光谱方法证实了环状中间体恶嗪衍生物 (IV) 的中间体,尽管多次尝试分离 IV 均未成功。讨论了形成 IV 的机制。