The condensation of a glycine ester, two equivalents of paraformaldehyde, and the same quantity of a dialkyl phosphite or diphenylphosphine oxide afforded the title compounds as new bis(phospha-Mannich) products under microwave (MW) conditions at 100 degrees C. The dialkoxyphosphinoylmethyl derivatives were synthesized under solvent-free conditions, whereas the diphenylphosphinoylmethyl derivatives
甘
氨酸酯、两当量的多
聚甲醛和等量的二烷基
亚磷酸酯或二苯基氧化膦在微波 (MW) 条件下在 100 摄氏度下缩合得到标题化合物,作为新的双(
磷酸-曼尼希)产物。 二烷氧基膦酰基甲基衍
生物在无溶剂条件下合成,而
二苯基膦酰基甲基衍
生物在
乙腈溶液中合成。比较热实验表明 MW 在效率方面的有益作用。(C) 2013 Wiley Periodicals, Inc.