AMINOPHOSPHONIC ACIDS BEARING HETEROCYCLIC MOIETY. PART 4.<sup>1</sup> SYNTHESIS OF 2-PYRIDYL AND 4-PYRIDYLMETHYL-(AMINO)PHOSPHONIC ACIDS
作者:Bogdan Boduszek
DOI:10.1080/10426509708043492
日期:1997.3.1
and 4-pyridylmethyl(amino)phosphonic acids at not available by hydrolysis of corresponding phosphonic esters by means of aq. hydrochoric acid. During hydrolysis of these esters a cleavage of C-P bond occurs, which leads to a repulsion of phosphorus moiety and formation of the corresponding amine. It was found, that silylation of pyridylmethyl(amino)phosphonic diethyl esters with bromotrimethylsilane
摘要 2-
吡啶基和4-
吡啶基甲基(
氨基)
膦酸不能通过
水溶液
水解相应的
膦酸酯获得。
盐酸。在这些酯的
水解过程中,CP 键发生断裂,导致
磷部分的排斥和相应胺的形成。发现,
吡啶基甲基(
氨基)
膦酸二乙酯与
溴三甲基
硅烷的甲
硅烷基化以及随后甲
硅烷基化产物与
甲醇的溶剂分解导致预期的2-
吡啶基和4-
吡啶基甲基(
氨基)
膦酸以高产率产生。