Nitrones. Part IX. The synthesis and reactions of 2,3-dihydro-1,4-oxazine 4-oxide, a heterocyclic nitrone
作者:J. F. Elsworth、M. Lamchen
DOI:10.1039/j39680002423
日期:——
4-hydroxymorpholine, when treated with a variety of oxidising agents, yielded 2,3-dihydro-1,4-oxazine 4-oxide (IV) as established by spectral and cycloaddition studies. When the solvent was removed, the heterocyclic nitrone (IV) yielded polymers, believed to have a chain-type structure (X). The nitrone (IV) behaved as a typical nitrone towards reducing agents. It was oxidised by arylhydrazines and by ferric
通过光谱和环加成研究确定,在氯仿和4-羟基吗啉水溶液中的溶液经过各种氧化剂处理后,可生成2,3-二氢-1,4-恶嗪4-氧化物(IV)。当除去溶剂时,杂环硝酮(IV)产生了据信具有链型结构(X)的聚合物。硝酮(IV)作为还原剂的典型硝酮。它被芳基肼和氯化铁氧化。通过反应性π键系统,它形成了1,3-环加成产物,其结构已通过分析和光谱数据确定。