Functionalized 4-Aminoquinolines by Rearrangement of Pyrazole N-Heterocyclic Carbenes
作者:Andreas Schmidt、Niels Münster、Andrij Dreger
DOI:10.1002/anie.200905436
日期:2010.4.1
Thermal decarboxylation of 1‐phenylpyrazolium‐3‐carboxylates from the mesomeric betaine class of substances leads to pyrazole‐N‐heterocyclic carbenes, which immediately rearrange to multiply substituted 4‐aminoquinolines (see scheme). These species are of interest for the synthesis of heterocycles and pharmacologically active compounds.
消旋甜菜碱类物质中的1-苯基吡唑-3-羧酸盐的热脱羧反应生成吡唑-N-杂环卡宾,其立即重排成多个取代的4-氨基喹啉(参见方案)。这些物质对于杂环和药理活性化合物的合成是令人感兴趣的。