1-AMINOPHOSPHONIC ACIDS AND ESTERS BEARING HETEROCYCLIC MOIETY. PART 2.<sup>1</sup> PYRIDINE, PYRROLE AND IMIDAZOLE DERIVATIVES
作者:Bogdan Boduszek
DOI:10.1080/10426509608046390
日期:1996.6.1
aminophosphonates derived from pyridine, pyrrole and imidazole. The Schiff bases obtained from corresponding heterocyclic aldehydes and benzylic amines were caused to react with diphenyl phosphonate or dibenzyl phosphonate to form corresponding heterocyclic aminophosphonates in good yields. The N-(benzylamino)-phosphonates were deblocked by catalytic hydrogenolysis. The benzhydryl group from the phosphonates
摘要 苄胺(苄胺、二苯甲基胺和氨基甲酸苄酯)用于合成吡啶、吡咯和咪唑衍生的氨基膦酸酯。使从相应的杂环醛和苄胺获得的席夫碱与膦酸二苯酯或膦酸二苄酯反应,以良好的产率形成相应的杂环氨基膦酸酯。N-(苄基氨基)-膦酸酯通过催化氢解解封。膦酸酯中的二苯甲基通过酸性水解被去除,并且膦酸酯中的苄氧基也可以通过用 30% HBr 的乙酸溶液处理而容易地去除。发现在2-和4-吡啶基甲基氨基膦酸酯的酸性水解过程中发生了重排。