Investigation of the Reaction of <i>o</i>-Aminonitriles with Ketones: A New Modification of Friedländer Reaction and Structures of Its Products
作者:Jiarong Li、Lijun Zhang、Daxin Shi、Qing Li、Dong Wang、Chunxia Wang、Qi Zhang、Ling Zhang、Yanqiu Fan
DOI:10.1055/s-2007-1000841
日期:2008.1
A new modification of the Friedlander reaction is described and the new byproduct obtained from the reaction of O-aminonitriles and ketones was found to be 2,3-dihydroquinazolin-4(1 H)-one. The mechanism probably involved the formation of an intermediate oxazine, via the Pinner reaction and its transformation into new products via the Dimroth rearrangement.
描述了 Friedlander 反应的新改进,发现从 O-氨基腈和酮反应中获得的新副产物是 2,3-二氢喹唑啉-4(1 H)-one。该机制可能涉及通过 Pinner 反应形成中间体恶嗪,并通过 Dimroth 重排将其转化为新产物。