Introduction of Benzo[<i>h</i>]quinoline and 1,10-Phenanthroline Subunits by Friedländer Methodology
作者:Elvira C. Riesgo、Xiaoqing Jin、Randolph P. Thummel
DOI:10.1021/jo952164h
日期:1996.1.1
8-amino-7-quinolinecarbaldehyde has been developed. The methyl group of 7-methyl-8-nitroquinoline may be oxidized to an aldehyde by treatment first with dimethylformamide dimethyl acetal followed by sodium periodate. Reduction with iron provides the amino aldehyde. An analogous sequence affords 1-amino-2-naphthalenecarbaldehyde. Friedländer condensation of the quinoline derivative with a series of acetylaromatics
已经开发了改进的8-氨基-7-喹啉甲醛的制备方法。通过先用二甲基甲酰胺二甲基乙缩醛,然后用高碘酸钠处理,可以将7-甲基-8-硝基喹啉的甲基氧化为醛。用铁还原得到氨基醛。类似的序列得到1-氨基-2-萘甲醛。喹啉衍生物与一系列乙酰基芳烃的弗里德兰德缩合反应提供了相应的2-芳基-1,10-菲咯啉。氨基醛与1,3-二乙酰基苯或2,6-二乙酰基吡啶的缩合可提供预期的Friedländer产品。对于氨基醛与1,4-二乙酰基苯,4,4'-二乙酰基联苯,1,5-二乙酰基蒽,1,2,3,4,5,6,7,8-八氢ac啶-1的反应描述了相似的化学方法8-dione和四环[6.3.0.0。(4,11)0(5,