An efficient synthesis of α-aryl β-(N-tosyl)amino phosphonate derivatives from α-diazophosphonate
作者:Yonghua Zhao、Nan Jiang、Jianbo Wang
DOI:10.1016/j.tetlet.2003.08.124
日期:2003.11
The α-diazophosphonate was added to aryl (N-tosyl)imine to give β-aryl β-(N-tosyl)amino α-diazophosphonates, which were further subjected to TsOH-catalyzed diazo decomposition to yield α-aryl β-(N-tosyl)enaminophosphonates through 1,2 aryl migration. The α-aryl β-(N-tosyl)enamino phosphonates were hydrogenated to give α-aryl β-(N-tosyl)amino phosphonates.
α-diazophosphonate加入到芳基(Ñ甲苯磺酰)亚胺,得到β -芳基β-(Ñ甲苯磺酰)氨基α-diazophosphonates,将其进一步进行加入TsOH催化分解重氮,得到α -芳基β-(Ñ -甲苯磺酰基)烯氨基膦酸酯通过1,2芳基迁移。将α-芳基β-(N-甲苯磺酰基)烯氨基膦酸酯氢化,得到α-芳基β-(N-甲苯磺酰基)氨基膦酸酯。