One-Pot Synthesis of 1,4,7,10,13,16,21,24-Octaazabicyclo[8.8.8]hexacosane - The Peraza Analogue of [2.2.2]Cryptand
作者:Mikhail Yurievich Redko、James Edward Jackson、Rui Huang、James Louis Dye
DOI:10.1055/s-2006-926335
日期:——
The peraza analogue of polyether cryptand [2.2.2], 1,4,7,10,13,16,21,24-octaazabicyclo[8.8.8]hexacosane, has been synthesized in 70% yield via a two-step one-pot procedure by the condensation of tris(2-aminoethyl)amine (tren) with glyoxal in isopropanol at -78 °C followed by reduction of the intermediate with Na/liquid NH3. This preparation is significantly faster, simpler, and higher yielding than the previously reported two-step procedure, with its lengthy isolation process and 45% overall yield.
在-78 °C下,通过在异丙醇中将三(2-氨基乙基)胺(tren)与乙二醛缩合,然后用Na/液态NH3还原中间体,以两步法合成了聚醚隐烷[2.2.2]的peraza类似物1,4,7,10,13,16,21,24-八氮杂双环[8.8.8]六碳烷,收率为70%。与之前报道的两步法相比,这种制备方法明显更快、更简单、收率更高,因为两步法的分离过程较长,总收率仅为 45%。