Synthesis of Precursors of 4-Phosphino-1<i>H</i>-pyrrole-3-carbaldehyde Derivatives
作者:Radomyr V. Smaliy、Aleksandra A. Chaykovskaya、Nataliya A. Shtil、Aleksandr S. Savateev、Aleksandr N. Kostyuk
DOI:10.1002/hc.21069
日期:2013.3
In this work, possible approaches to the synthesis of 1,2,5-substituted 4-phosphoryl-3-formylpyrroles have been considered. As a result, two methods for the synthesis of 4-(diphenylphosphoryl)-1-(4-ethoxyphenyl)-2,5-dimethyl-1H-pyrrole-3-carbal-dehyde were proposed; the highest yields gives formylation of 3-(diphenylphosphorothioyl)-1-(4-ethoxyphenyl)-2,5-dimethyl-1H-pyrrole. The formyl fragment was
在这项工作中,已经考虑了合成 1,2,5-取代 4-phosphoryl-3-formylpyrroles 的可能方法。因此,提出了两种合成4-(二苯基磷酰基)-1-(4-乙氧基苯基)-2,5-二甲基-1H-吡咯-3-碳醛的方法;最高产率得到 3-(二苯基硫代磷酰基)-1-(4-乙氧基苯基)-2,5-二甲基-1H-吡咯的甲酰化。用苯乙胺成功地将甲酰基片段转化为席夫碱,并用硅氯仿将磷酰基还原为膦,这为合成手性双齿膦配体提供了一种很有前景的方法。© 2013 Wiley Periodicals, Inc. 杂原子化学 24:146–151, 2013; 在 wileyonlinelibrary.com 上在线查看这篇文章。DOI 10.1002/hc.21069