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Li Z, Li M, Meng X, Zhang K, Hu D. A Novel Derivatization Method for the Determination of Saisentong in Soil by High-Performance Liquid Chromatography. Chromatographia 2014. [DOI: 10.1007/s10337-014-2696-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Liu Y, Jia G, Ling X, Lan N, Zheng Y, Li S, Zhang L, Liu L, Zhang R, Xue Y. Decomposition of copper – amino acid complexes by oxalic acid dihydrate. CAN J CHEM 2012. [DOI: 10.1139/v2012-032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A facile approach to the synthesis of some side-chain-protected amino acids via oxalic acid dihydrate as the copper sequestering reagent is presented. The copper in the amino acid complex reacted with oxalic acid dihydrate to form insoluble cupric oxalate, with the free amino acid released. Compared with conventional methods, this method is convenient, inexpensive, and environmentally friendly.
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Affiliation(s)
- Yi Liu
- School of Pharmacy, Xuzhou Medical College, 84 West Huaihai Road, Xuzhou, 221002 Jiangsu, P.R. China
| | - Genguang Jia
- School of Pharmacy, Xuzhou Medical College, 84 West Huaihai Road, Xuzhou, 221002 Jiangsu, P.R. China
| | - Xin Ling
- School of Pharmacy, Xuzhou Medical College, 84 West Huaihai Road, Xuzhou, 221002 Jiangsu, P.R. China
| | - Nuo Lan
- School of Pharmacy, Xuzhou Medical College, 84 West Huaihai Road, Xuzhou, 221002 Jiangsu, P.R. China
| | - Youguang Zheng
- School of Pharmacy, Xuzhou Medical College, 84 West Huaihai Road, Xuzhou, 221002 Jiangsu, P.R. China
| | - Sai Li
- School of Pharmacy, Xuzhou Medical College, 84 West Huaihai Road, Xuzhou, 221002 Jiangsu, P.R. China
| | - Ling Zhang
- School of Pharmacy, Xuzhou Medical College, 84 West Huaihai Road, Xuzhou, 221002 Jiangsu, P.R. China
| | - Ling Liu
- School of Pharmacy, Xuzhou Medical College, 84 West Huaihai Road, Xuzhou, 221002 Jiangsu, P.R. China
| | - Rongli Zhang
- School of Pharmacy, Xuzhou Medical College, 84 West Huaihai Road, Xuzhou, 221002 Jiangsu, P.R. China
| | - Yunsheng Xue
- School of Pharmacy, Xuzhou Medical College, 84 West Huaihai Road, Xuzhou, 221002 Jiangsu, P.R. China
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Romanski J, Karbarz M, Pyrzynska K, Jurczak J, Stojek Z. Polymeric hydrogels modified with ornithine and lysine: Sorption and release of metal cations and amino acids. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.25063] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Tera M, Iida K, Shin-ya K, Nagasawa K. Development of Macrocyclic Polyoxazoles and Evaluation of Their G-Quadruplex Stabilizing Activities. J SYN ORG CHEM JPN 2011. [DOI: 10.5059/yukigoseikyokaishi.69.129] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Bellina F, Rossi R. Transition metal-catalyzed direct arylation of substrates with activated sp3-hybridized C-H bonds and some of their synthetic equivalents with aryl halides and pseudohalides. Chem Rev 2010; 110:1082-146. [PMID: 19610600 DOI: 10.1021/cr9000836] [Citation(s) in RCA: 769] [Impact Index Per Article: 54.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fabio Bellina
- Dipartimento di Chimica e Chimica Industriale, University of Pisa, Via Risorgimento 35, 56125 Pisa, Italy
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Nowshuddin S, Rao MNA, Reddy AR. Efficient Procedure for the Preparation of Oligomer-Free Nα-Fmoc Amino Acids. SYNTHETIC COMMUN 2009. [DOI: 10.1080/00397910802632563] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Nora de Souza MV, Alves Vasconcelos TR. Recent methodologies mediated by sodium borohydride in the reduction of different classes of compounds. Appl Organomet Chem 2006. [DOI: 10.1002/aoc.1137] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Chatain V, Sanchez F, Bayard R, Moszkowicz P, Gourdon R. Effect of experimentally induced reducing conditions on the mobility of arsenic from a mining soil. JOURNAL OF HAZARDOUS MATERIALS 2005; 122:119-28. [PMID: 15943934 DOI: 10.1016/j.jhazmat.2005.03.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2004] [Revised: 03/11/2005] [Accepted: 03/14/2005] [Indexed: 05/02/2023]
Abstract
A method for estimating the release of contaminants from contaminated sites under reducing conditions is proposed. The ability of two chemical reducing agents, sodium ascorbate and sodium borohydride, to produce different redox environments in a gold mining soil contaminated with arsenic was investigated. Liquid-solid partitioning experiments were carried out in the presence of each of the reducing agents at different pH conditions. Both the effect of varying concentrations of the reducing agent and the effect of varying pH in the presence of a constant concentration of the reducing agent were studied. Concentrations of sodium ascorbate ranging from 0.0075 to 0.046 mol L(-1) and concentrations of sodium borohydride ranging from 0.0075 to 0.075 mol L(-1) were examined. The addition of varying concentrations of sodium borohydride provided greater reducing conditions (ranging from -500 to +140 mV versus NHE) than that obtained using sodium ascorbate (ranging from -7 to +345 mV versus NHE). The solubilization of arsenic and iron was significantly increased by the addition of sodium ascorbate for all concentrations examined and pH tested, compared to that obtained under oxidizing conditions (as much as three orders of magnitude and four orders of magnitude, respectively, for the addition of 0.046 mol L(-1) of sodium ascorbate). In contrast, the alkaline and highly reduced soil conditions obtained with sodium borohydride lead to a lower effect on arsenic solubilization (as much as one order of magnitude for pH values between ca. 7 and 10 and no effect for pH values between ca. 10 and 12) and no effect on iron solubilization for all concentrations examined and pH tested. At similar ORP-pH conditions the results of extraction for arsenic and iron were different for the two reagents used.
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Affiliation(s)
- Vincent Chatain
- Laboratoire d'Analyse Environnementale des Procédés et des Systèmes Industriels, Institut National des Sciences Appliquées de Lyon, Villeurbanne, France
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