Direct and indirect radical denitrations of intermediates in the synthesis of sorgolactone and its nuclear analogs+
作者:Katalin Mikló、Joseph Cs. Jaszberenyi、István Kádas、Géza Árvai、László Tőke
DOI:10.1016/0040-4039(96)00560-6
日期:1996.5
Denitration of various important intermediates in the synthesis of sorgolactone and its analogs using radical chemistry on nitroketones or on the derived isocyanides is described. The nitro group is needed for the first step of the annellation process, the Michael addition of substituted nitroalkanes to cyclopentenones. Then it can be removed directly or after reduction to the amine or via the ketone
描述了使用自由基化学对硝基酮或衍生的异氰酸酯合成高粱内酯及其类似物时各种重要中间体的脱硝作用。硝基化过程的第一步需要硝基,即将取代的硝基烷烃迈克尔加成到环戊烯酮上。然后可以将其直接去除,或还原成胺后或通过Nef反应获得的酮去除。