Synthesis and utility of new amine/nucleobase addition products of allenylphosphonates
作者:K.C. Kumara Swamy、E. Balaraman、N. Satish Kumar
DOI:10.1016/j.tet.2006.08.034
日期:2006.10
In the reaction of allenylphosphonates with amines/nucleobases, depending on the amine and the allenylphosphonate, either Z- or E-vinylphosphonate or allylphosphonate as a single isomer with a β-amino functionality was isolated. A simple route to phosphonates with a β-NH2 group is developed by direct reaction with ammonia. In reactions with adenine, three different modes of reaction, with one of them involving
在烯丙基膦酸酯与胺/核碱基的反应中,取决于胺和烯丙基膦酸酯,分离出Z-或E-乙烯基膦酸酯或烯丙基膦酸酯作为具有β-氨基官能团的单一异构体。到膦酸酯的简单路线与β-NH 2基团通过与氨直接反应的发展。在与腺嘌呤的反应中,观察到三种不同的反应模式,其中一种涉及异常环化。由此证明,通过霍纳-沃兹沃思-埃蒙斯(HWE)反应合成(烯胺基)-1,3-丁二烯时得到的(烯胺基)烯丙基膦酸酯产品也很有用。