Reactivity of some sugars and sugar phosphates towards gold(III) in sodium acetate–acetic acid buffer medium
作者:Kalyan Kali Sen Gupta、Biswajit Pal、Bilkis Ara Begum
DOI:10.1016/s0008-6215(00)00181-6
日期:2001.1
The kinetics of the oxidation of some aldoses and aldose phosphates have been studied spectrophotometrically in sodium acetate-acetic acid buffer medium at different temperatures. The reactions are first order with respect to [Au(III)] and [substrate]. Both H+ and Cl- ions retard the reaction. The reactions appear to involve different gold(III) species, viz. AuCl4-, AuCl3(OH2) and AuCl3(OH)- . The
Sen Gupta, Kalyan Kali; Tribedi, Partha Sarathi; Sen Gupta, Shipra, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1996, vol. 35, # 5, p. 427 - 430
A simple route for synthesis of 4-phospho-d-erythronate
作者:Yehor Novikov、Shelley D. Copley、Bruce E. Eaton
DOI:10.1016/j.tetlet.2011.02.045
日期:2011.4
4-Phospho-D-erythronate is an intermediate in the synthesis of pyridoxal 5'-phosphate in some bacteria and an inhibitor of ribose 5-phosphate isomerase. Previous synthetic schemes for the preparation of 4-phospho-D-erythronate required expensive precursors and typically gave low yields. We report a straightforward synthesis of 4-phospho-D-erythronate from the inexpensive precursor D-erythronolactone in five steps with a preparatively useful yield of 22%. (C) 2011 Elsevier Ltd. All rights reserved.