Unusual solvent-dependent behaviour of hydroxyiminophosphonamidates in the Beckmann reactions: choice between rearrangement or fragmentation to metaphosphonamidate species

被引:3
|
作者
Kehler, J [1 ]
Breuer, E [1 ]
机构
[1] HEBREW UNIV JERUSALEM,SCH PHARM,DEPT PHARMACEUT CHEM,IL-91120 JERUSALEM,ISRAEL
关键词
D O I
10.1039/a704787h
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Methyl alpha-hydroxyiminobenzyl-N-tert-butylphosphonamidate undergoes Beckmann rearrangement (BR) when heated in toluene, but fragmentation (via metaphosphonamidate) to a phosphoramidate and PhCN when heated in BuOH, supporting the assumption of a common intermediate for the BR and the Beckmann fragmentation; polar solvents retard the rearrangement.
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页码:1751 / 1752
页数:2
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