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

页码：63 / 77

页数：15