A desamidination process forming a novel guanidine derivative during the complexation between copper(II) and guanidinoacetic acid

被引：5
作者：
de Miranda, JL
Felcman, J
Versiane, O
Herbst, MH
机构：
[1] Univ Fed Rio de Janeiro, Dept Quim Inorgan, Inst Quim, BR-21945970 Rio De Janeiro, Brazil
[2] Pontificia Univ Catolica Rio de Janeiro, Dept Quim, BR-22453900 Rio De Janeiro, Brazil
[3] Univ Fed Rio de Janeiro, Inst Fis, Dept Fis Solidos, UFRJ Ilha Fundao CT, BR-21945970 Rio De Janeiro, Brazil
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2004年 / 7卷 / 11期
关键词：
guanidinoacetic acid; copper(II); transamidination;
D O I：
10.1016/j.inoche.2004.09.009
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A novel trianionic disubstituted guanidine, (N-1-carboxymethylguanidino)hydroxyacetic acid-C5H6N3O5), oag(3-), has been formed through a desamidination process occurred during copper(II) complexation with guanidinoacetic acid, C3H7N3O2 (Gaa), which produced [Cu-2(oag)(Gaa)(H2O)]NO3 (.) 2H(2)O (1). A proposal mechanism of formation of 1 is presented based on the low temperature electron paramagnetic resonance and previous potentiometric studies, which have indicated the presence of CuHGaa as the precursor species. (C) 2004 Elsevier B.V. All rights reserved.
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收藏
页码：1198 / 1201
页数：4
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