α-aminophosphonates bearing free hydroxyl groups in the aromatic rings.: Synthesis and NMR characterization

被引：7
|
作者：
Failla, S
Finocchiaro, P
Hagele, G
Kalchenko, VI
机构：
[1] Univ Catania, Fac Ingn, Ist Chim, I-95125 Catania, Italy
[2] Univ Dusseldorf, Inst Anorgan Chem & Strukturchem, D-40225 Dusseldorf, Germany
[3] Natl Acad Sci Ukraine, Inst Organ Chem, UA-253660 Kiev, Ukraine
来源：
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS | 1997年 / 128卷
关键词：
metal chelating phosphonates; NMR and FAB-MS characterization; monomers for polycondensates;
D O I：
10.1080/10426509708031564
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
In this paper we describe a useful synthetic procedure leading in very good yields to mono- and bis-alpha-aminophosphonic acid dialkylesters containing the free phenolic hydroxyl group in a strategic position of the aromatic ring in order to enhance complexation with metal ions. This synthetic procedure is based on the addition of a solution of sodium dialkyl phosphite in phosphite to imine precursors. The addition reaction is highly stereospecific: only one diastereomer for each of the bis-alpha-aminophosphonic acid dialkylesters is formed. All compounds were characterized by NMR (H-1 and P-31) and by FAB-MS spectroscopy.
引用
收藏
页码：63 / 77
页数：15
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