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Synergistic Extraction of Lanthanides by 1-Nitroso-2-Naphthol and Trioctylphosphine Oxide in Paraffin Wax
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作者 郭效军 高锦章 +4 位作者 范海燕 彭波 王碧 邓启良 康敬万 《Rare Metals》 SCIE EI CAS CSCD 2000年第4期306-311,共6页
The paraffin wax was used as a diluent for 1-nitroso-2-naphthol(HA) and trioctylphosphine oxide(TOPO) in the extraction of lanthanides at 70℃. The composition of the extracted species was given as LnA_3(TOPO)_2 by me... The paraffin wax was used as a diluent for 1-nitroso-2-naphthol(HA) and trioctylphosphine oxide(TOPO) in the extraction of lanthanides at 70℃. The composition of the extracted species was given as LnA_3(TOPO)_2 by means of the slope analysis. The variation of the synergistic extraction equilibrium constant(K_ sex) was investigated at 60~80℃, and the thermodynamic data were calculated. The dependence of separation factors on temperature was also studied. 展开更多
关键词 Synergistic extraction LANTHANIDES 1-nitroso-2-naphthol Trioctylphosphine oxide
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Solid-Liquid Extraction of Some Lanthanide Complexes with 1-Nitroso-2-Naphthol
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作者 Jin Zhang GAO Xiao Jun GUO +2 位作者 Bi WANG Qi Liang DENG Hai Yan FAN(Department of Chemistry, Northwest Normal University, Lanzhou 730070) 《Chinese Chemical Letters》 SCIE CAS CSCD 2000年第7期653-654,共2页
The extraction behavior of Sm(III), Eu(III),Er(III) and Yb(III) with 1- nitroso -2-naphthol (HA) in paraffin has been studied. The composition of,extracted complexes has been determined to be LnA(3) by slope analysis ... The extraction behavior of Sm(III), Eu(III),Er(III) and Yb(III) with 1- nitroso -2-naphthol (HA) in paraffin has been studied. The composition of,extracted complexes has been determined to be LnA(3) by slope analysis method. The effect of temperature on extraction system is also investigated and thermodynamic parameters are obtained. 展开更多
关键词 SOLID-LIQUID LANTHANIDE 1-nitroso-2-naphthol
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Cobalt Determination by Means of Flow Injection On-line Sorbent Preconcentration-Flame Atomic Absorption Spectrometry with 1-Nitroso-2-naphthol as a Complexing Reagent
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作者 YIN Xue-feng ALI Akbar +3 位作者 XU Guang-ming LING Yun-yang GAO Jian YE Mei-ying 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2001年第3期264-270,共7页
The suitability of 1-nitroso-2-naphthol(NN) as a complexing agent for on-line preconcentration of cobalt eluted on the C_(18) microcolumn by means of the FI-FAAS system was tested. Various parameters affecting the com... The suitability of 1-nitroso-2-naphthol(NN) as a complexing agent for on-line preconcentration of cobalt eluted on the C_(18) microcolumn by means of the FI-FAAS system was tested. Various parameters affecting the complex formation and its elution were optimized. A 2.3×10^(-3) mol/L reagent solution and the aqueous sample solution acidified with 0.1% (volume fraction) nitric acid were on-line mixed (6.4 mL/min) on a reaction coil set at (65±1)℃ and flowed through the microcolumn for 30 s. The pH of the mixed solution was adjusted to 3—4 with HNO_3(1 mol/L) or NaOH(1 mol/L). The adsorbed complexes in the microcolumn were eluted into the nebulizer of FAAS in 10 s with ethanol acidified with 1% HNO_3(3.0 mL/min). A good precision(1.6% for 100μg/L Co(Ⅱ), n=10), a high enrichment factor 17.2, with detection limit (3σ) 3.2μg/L, and sample throughput (90 h^(-1)) were obtained. The method was applied to the certified reference materials(CRMs), NBS-362 and NBS-364, for the determination of cobalt and the results were in good agreement with the certified values. 展开更多
关键词 Cobalt FI on-line preconcentration AAS 1-Nitroso-2-naphthol
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包结法拆分1,1'-联-2-萘酚:包结物的晶体结构及CD光谱 被引量:3
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作者 赵珺 郑明贤 +3 位作者 林以玑 陈渊川 阮源萍 章慧 《物理化学学报》 SCIE CAS CSCD 北大核心 2010年第7期1832-1836,共5页
以D/L-缬氨醇为原料,通过二步反应得到价廉易得的拆分剂碘化(R)/(S)-N,N,N-三甲基-1-羟基-3-甲基-2-丁铵,采用包结拆分法,成功实现了对1,1′-联-2-萘酚(BINOL)的拆分.对具有(R)-构型的季铵盐与(R)-BINOL在甲醇中所形成包结物的晶体结构... 以D/L-缬氨醇为原料,通过二步反应得到价廉易得的拆分剂碘化(R)/(S)-N,N,N-三甲基-1-羟基-3-甲基-2-丁铵,采用包结拆分法,成功实现了对1,1′-联-2-萘酚(BINOL)的拆分.对具有(R)-构型的季铵盐与(R)-BINOL在甲醇中所形成包结物的晶体结构分析结果表明:I-离子桥联主体(拆分剂)的醇羟基和客体(BINOL)的酚羟基形成O-H…I-氢键,以及相邻层的主客体分子之间的C-H…O氢键相互作用是在包结物中实现手性识别的关键.同时对两个包结物的溶液和固体圆二色(CD)光谱进行了研究. 展开更多
关键词 圆二色光谱 1 1′-联-2-萘酚 包结拆分 碘化(R)/(S)-N N N-三甲基-1-羟基-3-甲基-2-丁铵 晶体结构
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New Method for Preparation of 1-Amidoalkyl-2-Naphthols via Multicomponent Condensation Reaction Utilizing Tetrachlorosilane under Solvent Free Conditions
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作者 Samy B. Said Mohammad M. A. Mashaly +1 位作者 Ahmed M. Sheta Saad S. Elmorsy 《International Journal of Organic Chemistry》 2015年第3期191-199,共9页
An efficient and direct procedure for the synthesis of amidoalkylnaphthol derivatives employing a multi-component and one-pot condensation reaction of 2-naphthol, aromatic aldehyde and ace-tonitrile in the presence of... An efficient and direct procedure for the synthesis of amidoalkylnaphthol derivatives employing a multi-component and one-pot condensation reaction of 2-naphthol, aromatic aldehyde and ace-tonitrile in the presence of tetrachlorosilane (TCS). A binary reagent from (TCS)/ZnCl2 was used upon applying benzonitrile. 展开更多
关键词 1-Amidoalkyl-2-naphthol TETRACHLOROSILANE (TCS) MULTICOMPONENT REACTION
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A rapid and efficient method for the synthesis of 14H-dibenzo[α.j]xanthenes,aryl-5H-dibenzo[b.i]xanthene-5,7,12,14-(13H)-tetraone and 1,8-dioxooctahydroxanthenes by acidic ionic liquid 被引量:3
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作者 Abbas Rahmati 《Chinese Chemical Letters》 SCIE CAS CSCD 2010年第7期761-764,共4页
Various xanthenes have been synthesized by the condensation ofβ-naphthol,2-hydroxynaphthalene-1,4-dione or dimedone with various aldehydes in the presence of trifluoroacetic acid as catalyst in 1,1,3,3-N,N,N′,N′-te... Various xanthenes have been synthesized by the condensation ofβ-naphthol,2-hydroxynaphthalene-1,4-dione or dimedone with various aldehydes in the presence of trifluoroacetic acid as catalyst in 1,1,3,3-N,N,N′,N′-tetramethylguanidinium trifluoroacetate (TMGT) ionic liquid within 1 h at 75℃. 展开更多
关键词 Ionic liquid 14H-Dibenzo[α.j]xanthenes Β-naphthol 2-Hydroxynaphthalene-1 4-dione DIMEDONE
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手性脱氢枞胺拆分1,1′-联-2-萘酚 被引量:2
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作者 黄春林 黄尚顺 +3 位作者 黄科林 戴日强 黄科润 邹红 《精细化工》 EI CAS CSCD 北大核心 2010年第1期57-59,共3页
对外消旋1,1′-联-2-萘酚〔(±)-BINOL〕的拆分方法进行了研究。以廉价的手性脱氢枞胺为拆分剂,用正交实验法考察了反应时间、拆分剂用量、溶剂配比、(±)-BINOL浓度对(S)-BINOL和(R)-BINOL产率的影响。在反应时间1 h、n(脱氢枞... 对外消旋1,1′-联-2-萘酚〔(±)-BINOL〕的拆分方法进行了研究。以廉价的手性脱氢枞胺为拆分剂,用正交实验法考察了反应时间、拆分剂用量、溶剂配比、(±)-BINOL浓度对(S)-BINOL和(R)-BINOL产率的影响。在反应时间1 h、n(脱氢枞胺)∶n〔(±)-BINOL〕=1∶1、V(乙醇)∶V(水)=4∶1、c〔(±)-BINOL〕=0.3 mol/L的最佳条件下,(S)-BINOL和(R)-BINOL的收率分别为72.7%和53.1%,它们的ee值均大于99%,拆分剂的回收率为90.5%。该文研究工作的新颖性已为中国化工信息中心2009年9月18日出具的第2009-234号《科技查新报告》所证实。 展开更多
关键词 1 1′-联-2-萘酚 脱氢枞胺 拆分 分离提纯技术
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以分子印迹聚合物为固定相手性拆分1,1′-联-2-萘酚及其衍生物 被引量:6
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作者 李丽虹 刘岚 +1 位作者 罗勇 邓芹英 《色谱》 CAS CSCD 北大核心 2006年第6期574-577,共4页
以(R)-(+)-1,1′-联-2-萘酚为模板分子,4-乙烯基吡啶为功能单体合成了分子印迹聚合物,将其作为高效液相色谱的固定相,研究其手性识别特性。对该固定相的手性拆分的色谱条件进行了优化。实验结果表明,合成的印迹聚合物对(R)-(+)-1,1′-联... 以(R)-(+)-1,1′-联-2-萘酚为模板分子,4-乙烯基吡啶为功能单体合成了分子印迹聚合物,将其作为高效液相色谱的固定相,研究其手性识别特性。对该固定相的手性拆分的色谱条件进行了优化。实验结果表明,合成的印迹聚合物对(R)-(+)-1,1′-联-2-萘酚具有较强的亲和力和特定的选择性,能有效拆分1,1′-联-2-萘酚对映体,分离因子最高达到12.25。通过优化色谱条件,该分子印迹聚合物还能对与1,1′-联-2-萘酚结构相似的衍生物5,6,7,8,5′,6′,7′,8′-八氢-1,1′-联-2-萘酚和1,1′-联萘-2-氨基-2′-酚进行手性拆分,分离因子分别达到1.51和2.40。 展开更多
关键词 分子印迹聚合物 高效液相色谱 联萘酚 手性拆分
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NEW OPTICALLY ACTIVE AROMATIC POLYIMIDES Ⅱ: SYNTHESIS AND PROPERTIES OF OPTICALLY ACTIVE AROMATIC POLYIMIDE BASED ON (R)-(+)-2, 2′-BIS (2-TRIFLUORO-4-AMINOPHENOXY)-1, 1′-BINAPHTHYL 被引量:1
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作者 Qi-ding Mi Yu Ma +1 位作者 Lian-xun Gao Meng-xian Ding Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022, China Department of Chemistry, Peking University, Beijing 100871 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 1999年第1期87-90,共4页
Optically active (R)-(+)-2, 2' -bis(2 -trifluoro-4 -aminophenoxy)- 1, 1' -binaphthyl was prepared from1, 1'-bi-2-naphthol. The optically active aromatic polyimide was also successfully synthesized. This ne... Optically active (R)-(+)-2, 2' -bis(2 -trifluoro-4 -aminophenoxy)- 1, 1' -binaphthyl was prepared from1, 1'-bi-2-naphthol. The optically active aromatic polyimide was also successfully synthesized. This newpolymer has good solubility, thermal stability etc. Its specific rotation was found to be +174°, and itschiroptical property was also studied. 展开更多
关键词 Optical activity 1 1′-Bi-2-naphthol Polyimide
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Synthesis and Characterization of Nitrosonaphthol Dyes Based on 1-Naphthol and Their Dyeing Properties on Tanned Leather
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作者 Umar Salami Ameuru Mohammed Kabir Yakubu Kasali Ademola Bello 《Open Journal of Applied Sciences》 2014年第6期354-359,共6页
Nitrosonaphthol dyes and other corresponding analogues were synthesised from 1-Naphthol. The dyes were applied onto chrome and vegetable tanned leather upon characterization. The results indicate that the dye bath exh... Nitrosonaphthol dyes and other corresponding analogues were synthesised from 1-Naphthol. The dyes were applied onto chrome and vegetable tanned leather upon characterization. The results indicate that the dye bath exhaustion was better on chrome tanned leather than on vegetable tanned leather. This may be attributed to the chelating effect of chrome on leather and the higher temperature of dyeing the chrome tanned leather compared with the vegetable tanned leather. The fastness properties of the dyes of washing ranging from (3 - 5), perspiration on acid (4 - 5), alkaline (4 - 5) and light (4 - 7) were impressive on both vegetable and chrome tanned leather respectively. 展开更多
关键词 2-Nitroso-1-naphthol Tanned LEATHER EXHAUSTION FASTNESS
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Synthesis and Characterization of Both Enantiomers of a Chiral C_(60) Derivative Bearing the 1, 1'-Binaphthyl Group
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作者 Chuan Feng CHEN Gai Jiao JI +1 位作者 Ji Sheng LI Dao Ben ZHU(Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080) 《Chinese Chemical Letters》 SCIE CAS CSCD 1998年第10期931-934,共4页
Both enantiomers R-1 and S-1 of a chiral C60 derivative were synthesized by the reactions of C60 with 1, 1'-bi-2-naphthol bis(azidoacetates) and characterized by FD-MS, fT-IR,1H NMR, 13C NMR, UV-VIS, CD spectra.
关键词 chiral C_(60) derivative 1 1'-bi-2-naphthol enantiomer synthesis CD spectrum
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Preparation of 1-amidoalkyl-2-naphthol derivatives using barium phosphate nano-powders 被引量:1
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作者 Hadi Taghrir Majid Ghashang Mohammad Najafi Biregan 《Chinese Chemical Letters》 SCIE CAS CSCD 2016年第1期119-126,共8页
Barium phosphate(Ba_3(PO_4)_2) nano-powder was successfully synthesized via a simple precipitation route without any surfactant. The prepared nano-powder was applied for the facile synthesis of 1-amidoalkyl-2-naph... Barium phosphate(Ba_3(PO_4)_2) nano-powder was successfully synthesized via a simple precipitation route without any surfactant. The prepared nano-powder was applied for the facile synthesis of 1-amidoalkyl-2-naphthol derivatives using multi-component reaction of aldehydes, 2-naphthol and an amide(or urea) in high yields. 展开更多
关键词 Multi-component reaction 1-Amidoalkyl-2-naphthol Barium phosphate(Ba_3(PO_4)_2 2-Hydroxydibenzofuran
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Stripping voltammetric determination of Cd(Ⅱ)based on multiwalled carbon nanotube functionalized with 1-(2-pyridylazo)-2-naphthol 被引量:1
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作者 Alireza Mohadesi Hadi Beitollahi Mohammad Ali Karimi 《Chinese Chemical Letters》 SCIE CAS CSCD 2011年第12期1469-1472,共4页
The present work has focused on the modification of multiwalled carbon nanotube with a ligand,l-(2-pyridylazo)-2-naphthol, and its potential application for the development of a new,simple and selective modified gla... The present work has focused on the modification of multiwalled carbon nanotube with a ligand,l-(2-pyridylazo)-2-naphthol, and its potential application for the development of a new,simple and selective modified glassy carbon electrode for stripping voltammetric determination of Cd(Ⅱ).The analytical curve for Cd(Ⅱ) ions covered the linear range varying from 0.8 up to 220.4μgL^(-1).The limit of detection was found to be 0.1μgL^(-1),while the relative standard deviation(RSD) at 50.0μgL^(-1) was 1.8%(n=5).This modified electrode was successfully applied for determination of Cd(Ⅱ) in some water samples. 展开更多
关键词 Multiwalled carbon nanotube 1-(2-Pyridylazo)-2-naphthol Cadmium(Ⅱ) Stripping voltammetry
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H_4SiW_(12)O_(40):An efficient catalyst for the synthesis of new spiro-[dibenzo[a,i]xanthene- 14,3'-indoline]-2',8,13-triones 被引量:1
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作者 Li Min Yang Zhi Kui Yin Li Qiang Wu 《Chinese Chemical Letters》 SCIE CAS CSCD 2012年第3期265-268,共4页
Novel spiro[dibenzo[a,i]xanthene-14,3'-indoline]-2',8,13-triones were prepared by the three-component reaction ofβ-naphthol, isatins,and 2-hydroxy-1,4-naphoquinone in the presence of a catalytic amount of H_4SiW_... Novel spiro[dibenzo[a,i]xanthene-14,3'-indoline]-2',8,13-triones were prepared by the three-component reaction ofβ-naphthol, isatins,and 2-hydroxy-1,4-naphoquinone in the presence of a catalytic amount of H_4SiW_(12)O_(40).This protocol provides a simple one-step procedure with the advantages of easy work-up,mild reaction conditions and environmentally benign. 展开更多
关键词 Spiro[dibenzo[a i]xanthene-14 3'-indoline] Β-naphthol 2-Hydroxy-1 4-naphoquinone H_4SiW_(12)O_(40) Solvent-free
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Studies on Flavonoids ⅩⅩ——A Novel Synthesis of β-Naphthaflavanones From 1-Acetyl-2-naphthol
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作者 吕以仙 刘俊义 +1 位作者 宋惠芳 蔡孟深 《Chinese Science Bulletin》 SCIE EI CAS 1993年第19期1607-1611,共5页
1-Acetyl-2-naphthol was treated with aromatic aldehydes in the presence of piperidine for the preparation of the hydroxynaphthachalcones. However, the experimental result showed that the expected product was not forme... 1-Acetyl-2-naphthol was treated with aromatic aldehydes in the presence of piperidine for the preparation of the hydroxynaphthachalcones. However, the experimental result showed that the expected product was not formed, but the β-naphthaflavanones were obtained instead. The synthesis of β-naphthaflavanones from β-naphtholethanone directly using piperidine as catalyst has not been reported so far. 展开更多
关键词 β-naphthaflavanones 1-acetyl-2-naphthol.
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A Convenient Synthesis of 2-Arylnaphtho[1,2-d]oxazole Derivatives Promoted by Triethylamine
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作者 李红 韦堃 吴养洁 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2007年第11期1704-1709,共6页
A variety of 2-arylnaphtho[ 1,2-d]oxazole derivatives were efficiently synthesized in moderate to high yields by the reaction of aromatic aldehydes with 1-amino-2-naphthol derivatives in the presence of triethylamine ... A variety of 2-arylnaphtho[ 1,2-d]oxazole derivatives were efficiently synthesized in moderate to high yields by the reaction of aromatic aldehydes with 1-amino-2-naphthol derivatives in the presence of triethylamine in refluxing ethanol in air. Seven new 2-arylnaphtho[1,2-d]oxazole derivatives were obtained and characterized by the spectral data and elemental analysis. In addition, the X-ray crystal structures of 2-[4-(N,N-dimethylamino)phenyl]naphtho[ 1,2-d] oxzole (3d) and 1, 1'-bis(naphtho[ 1,2-d]oxazol-2-yl)ferrocene (3n) have been determined. 展开更多
关键词 2-arylnaphtho[1 2-d]oxazole 1-amino-2-naphthol derivative TRIETHYLAMINE crystal structure
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A Facile Procedure for the oxidative Coupling of 2-Naphthol and 2-Naphthalenethiol in Solid State 被引量:2
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作者 Li, TS Zhang, ZH +3 位作者 Yang, F Duan, HY Li, BZ Tewari, BB 《Chinese Chemical Letters》 SCIE CAS CSCD 1998年第7期603-604,共2页
The oxidation of 2-naphthol and 2-naphthalenethiol to 1,1'-bi-2-naphthol and bis-2-naphthyl disulfide respectively has been carried out in excellent yields in solid state in the presence of Fe3+-montmorillonite or... The oxidation of 2-naphthol and 2-naphthalenethiol to 1,1'-bi-2-naphthol and bis-2-naphthyl disulfide respectively has been carried out in excellent yields in solid state in the presence of Fe3+-montmorillonite or alumina-supported FeCl3. 展开更多
关键词 oxidative coupling 2-naphthol 2-naphthalenethiol Fe3+-montmorillonite FeC1(3)-A1(2)O(3)
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Environmentally Benign Electrophilic Halogenation of Naphthalenes by H<sub>2</sub>O<sub>2</sub>—Alkali Metal Halides in An Aqueous Cationic Micellar Media
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作者 Kancharla Rajendar Reddy Sariah Sana +2 位作者 Kusampally Uppalaiah Kamatala Chinna Rajanna Puppala Veerasomaiah 《International Journal of Organic Chemistry》 2012年第3期254-261,共8页
An efficient and greener protocol for the synthesis of 1-halo-naphthols by the action of hydrogen peroxide and alkali metal halides in aqueous micellar media is been described in the present work. This is an environme... An efficient and greener protocol for the synthesis of 1-halo-naphthols by the action of hydrogen peroxide and alkali metal halides in aqueous micellar media is been described in the present work. This is an environmentally clean and safe procedure, which involved insitu generation of the active halogen in presence of alkali halides. Cationic surfactants such as cetyltrimethylammoniumbromide (CTAB) and cetyltrimethylammoniumchloride (CTAC) were found to facilitate efficiency of halogenation in aqueous media. 展开更多
关键词 Green Chemistry HALOGENATION Synthesis 1-halo-naphthols Alkali Metal Halides 2-naphthols AQUEOUS Micellar Media CTAB (Cetyl Trimethyl AMMONIUM Bromide) CTAC (Cetyl Trimethyl AMMONIUM Chloride)
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Convenient synthesis of chiral H_4-BINOL via direct hydrogenation of BINOL 被引量:1
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作者 Qian Chang Ding Yun Feng Du Xin Sheng Li Dong Cheng Xu 《Chinese Chemical Letters》 SCIE CAS CSCD 2010年第11期1277-1280,共4页
A simple,highly effective hydrogenation of chiral BINOL to provide H_4-BINOL in multigram scale with good yield(up to 78% yield) was developed.A series of heterogeneous catalysts was tested in the hydrogenation;;the... A simple,highly effective hydrogenation of chiral BINOL to provide H_4-BINOL in multigram scale with good yield(up to 78% yield) was developed.A series of heterogeneous catalysts was tested in the hydrogenation;;the best result was obtained with 5%Pd/ C in EtOH under the H_2 pressure of 50 bar for 2 h.This method is a more useful method for practical synthesis of optically pure H4- BINOL than other available methods. 展开更多
关键词 HYDROGENATION 1 1'-Bi-2-naphthol 5 6 7 8-Tetrahydro-1 1'-bi-2-naphthol CHIRAL Pd/C
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手性BINOLC-Ti自组装催化剂的合成及其在不对称催化硫醚氧化中的应用 被引量:1
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作者 袁小亚 王晓天 《华中师范大学学报(自然科学版)》 CAS CSCD 2008年第2期228-231,共4页
利用多齿手性1,1′-联二萘酚(BINOL)与Ti(OiPr)4在溶剂中通过自组装方式形成一种不溶性高聚物,然后将其用于不对称催化氧化硫醚成亚砜的反应.研究表明制备的自组装Ti-BI-NOL催化剂均有较好的催化性能,ee值高达98%;配体的连接桥和反应溶... 利用多齿手性1,1′-联二萘酚(BINOL)与Ti(OiPr)4在溶剂中通过自组装方式形成一种不溶性高聚物,然后将其用于不对称催化氧化硫醚成亚砜的反应.研究表明制备的自组装Ti-BI-NOL催化剂均有较好的催化性能,ee值高达98%;配体的连接桥和反应溶剂对催化剂催化性能均有较大的影响. 展开更多
关键词 1 1′-联二萘酚 自组装 不对称催化 配位聚合物
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