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A New Convenient Method for the Resolution of 1, 1'-Binaphthalene-2, 2'-diol Via a phosphite Using (-)-Menthol as Resolving Agent

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Chinese Chemical Letters 2002年第7期13卷 617-619页

作者： JueXiaoCAI ChihuangYEUNG 等 StateKeyLaboratoryofElemento－OrganicChemistry InstituteofElemento－OrganicChemistryNankaiUniversityTianjin300071 OpenLaboratoryofChirotechnologyandDepartmentofAppliedBiologyandCh

(-)-Menthol reacts with phosphorus trichloride to afford menthyl phosphorodichloridite 2, which further reacts with racemic 1, 1′-binaphthalene-2, 2′-diol to give phosphite (±)-3 in the presence of triethylamine. (±)-3 can be easily separated by fractional crystallization to form the crystal (±)-(S)-3 and the mother liquor (-)-(R)-3. Then both the crystal and the mother liquor arc treated with AcOH-H2O to obtain enantiomeric pure (-)-(S)- and (+)-(R)-1 respectively, with enantiomeric excess up to 99.7%.

关键词： optically active 1,1-binaphthalene-2 2-diol L-menthol phosphite fractional crystal- lization resolution.

Metabolomics Profile of Potato Tubers after phosphite Treatment

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American Journal of Plant Sciences 2018年第4期9卷 845-864页

作者： Xingxi Gao Steven Locke Junzeng Zhang Jyoti Joshi Gefu Wang-Pruski Department of Plant Food and Environmental Sciences Faculty of Agriculture Dalhousie University Truro Canada Department of Edible Fungi Science Faculty of Agriculture Ludong University Yantai China Aquatic and Crop Resource Development Research Centre National Research Council of Canada Charlottetown Canada Aquatic and Crop Resource Development Research Centre National Research Council of Canada Halifax Canada

phosphite (Phi)-based fungicides are used to control the oomycete Phytophthora infestans which causes late blight disease, the most devastating disease in potatoes. In order to examine the effects of Phi-based fungicides on potato tubers through foliar or post-harvest application, a metabolite profiling approach based on gas chromatography coupled to mass spectrometry (GC-MS) has been established. A total of 132 metabolites were detected using the GC-MS approach. Among these, 34 metabolites were identified after normalization and annotated with a compound name with standard mass spectral library. Metabolomic analysis of Phi-treated plants showed significant differences in the levels of many metabolites especially amino acids. Multivariate statistical approaches, such as principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA), were employed to explore the relationships between metabolites to detect group differences. A good discrimination between the control and the Phi-treated plants was observed, which demonstrated that significant changes in the metabolite profile have been caused by the two different Phi applications (foliar or post-harvest). This finding suggests that the alteration of specific metabolite levels by accumulation of Phi can lead to resistance against the pathogen.

关键词： Potato Metabolomics GC-MS phosphite Phytophthora infestans

Boosting thermal stability and crystallization of closed-loop-recyclable biodegradable poly(p-dioxanone) by end-group regulation

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Science China Chemistry 2024年第2期67卷 642-651页

作者： Jin Lei Zhu-Xin Gui Wan-Ting Xiong Gang Wu Si-Chong Chen Yu-Zhong Wang The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials(MoE) National Engineering Laboratory of Eco-Friendly Polymeric Materials(Sichuan)State Key Laboratory of Polymer Materials EngineeringCollege of ChemistrySichuan UniversityChengdu610064China

A chemically closed-loop-recyclable biodegradable polymer,poly(p-dioxanone)(PPDO),is one of the ideal candidates for single-use plastic products due to its suitability for different application ***,when PPDO wastes can be collected,its monomer p-dioxanone(PDO) will be obtained through chemical recycling of these wastes;when cannot be collected,the wastes are able to be biodegraded into harmless ***,unsatisfied thermal stability and low crystallization rate of PPDO restrict its wider ***,based on end-group regulation,we simultaneously realized the significant enhancement of thermal stability and crystallization of PPDO through the simple melt processing with tributyl phosphite(TBP) or triphenyl phosphite(TPP).The model reactions were conducted to investigate the reaction mechanism and theoretical products during the preparation of PPDO/phosphite *** kinds of phosphites were proved to act as the end-capped reagent and chain extender in the melt processing,while TBP presented better *** a result,the activation energy of thermal decomposition was largely elevated,and the unprecedented T_(5%)(the temperature at a weight loss of 5%) and Tmax(the temperature at a maximum rate of weight loss) of PPDO were obtained,i.e.,T_(5%)of ~330 ℃ and Tmaxof ~385 ℃ in N_(2) atmosphere,T_(5%)of ~240 ℃ and Tmaxof ~317 ℃ in air atmosphere,***,the increased crystallization rate,crystallinity,crystalline orderliness,and realizable monomer recovery(yield >90%,purity >99.9%) of PPDO/phosphite compounds were confirmed.

关键词： poly(p-dioxanone) phosphite thermal stability crystallization end-group regulation

Synthesis and Characterization of Two New Organically Templated Open-framework Uranium phosphites

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Chinese Journal of Structural Chemistry 2006年第11期25卷 1380-1386页

作者： XU Jian-Fu LI Hao-Hong CAO Yan-Ning HUANG Chang-Cang ZHANG Han-Hui LIU Dong-Sheng YANG Qi-Yu SUN Rui-Qing College of Chemistry and Chemical Engineering Fuzhoi University Fuzhou Fujian 350002 China Department of Chemistry Jinggangshan College Ji ＇an Jiangxi 343009 China

Two organically templated uranium phosphites, （C4H12N）（UO2）（HPO3）（NO3）（Mr = 486.16） 1 and （C16H36N）2（UO2）2（H2PO3）2（HPO3）（NO3）2 （Mr= 1390.95） 2, were prepared by evaporation from aqueous solution of uranyl nitrate, phosphite acid and their respective organic ammonium hydroxids. Their structures were determined by single-crystal X-ray diffraction and further characterized by infrared and fluorescence spectroscopy. In 1, pentagonal [UO7] bipyramids share comers with three [HPO3]2- tetrahedra and one edge with a [NO3]- anion to form [（UO2）- （HPO3）（NO3）]^- ladder-like chains parallel to the b axis. The structure of 2 is also based upon one-dimensional anionic [（UO2）2（H2PO3）2（HPO3）（NO3）2]2-chains of comer-sharing penta- gonal [UOT] bipyramids with [H2PO3]- and [HPO3] tetrahedra, which is still unknown in structural chemistry of uranium so far. Crystal data for 1： monoclinic, space group C2/m, a = 21.808（7）, b = 6.9605（15）, c = 8.357（2） A, β = 98.327（15）°, V= 1255.2（6） A^3, Z = 4, Dc = 2.573 g/cm^3, F（000） = 888, μ = 13.086 mm^-1 the final R = 0.0418 and wR = 0.0906 （I 〉 2σ（I））; and those for 2： monoclinic, space group C2/c, a = 36.4549（8）, b = 14.5296（11）, c = 20.8253（11） A, β = 101.7440（8）°, V= 10799.7（10） A3, Z = 8, Dc= 1.711 g/cm^3, F（000） = 5424,μ = 6.144 mm^-1, the final R= 0.0368 and wR= 0.0865 （I〉 2σ（I））.

关键词： uranium phosphite organically templated crystal structure fluorescence

ONE'POT REACTION OF TRIVALENTPHOSPHORUS COMPOUNDS (Ⅰ)——A NOVEL ONE-STEP REACTION OF ADDITION,REDUCTION AND CYCLIZATION OF SUBSTITUTED β-NITROSTYRENE WITH O,O-DIALKYL phosphiteS

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Science China Chemistry 1989年第5期32卷 522-533页

作者：李玉桂王国洪张殿坤缪方明刘小兰曹金鸿郭杭州 Institute of Elemento-Organic Chemistry Nankai University Tianjin Department of Chemistry Tianjin Normal University Academy of Military Medical Sciences Beiting

In this paper the reaction of substituted β-nitrostyrene with O,O-dialkyl phosphite under cocatalysis of trimethylsilyl chloride （TMS-C1） and triethylamine （or other acidbinding agent） has been first studied and the new cyclization reaction leading to the formation of product Ⅱ, as a new class of derivatives of 1-hydroxyindoles, difficultly accessible or inaccessible with usual methods has been observed. In the related reaction it is surprising that when the Arbuzov rearrangement occurs under mild conditions, the addition, reduction and cyclization as a one-pot reaction take place simultaneously with the formation of products Ⅰ, Ⅱ, Ⅲ. By controlling the reaction conditions the products were formed almost in specificity, and thus the most interesting cyclic products Ⅱa-h containing phosphorus-carbon bond were obtained. Their structures were confirmed by elemental analysis, IR, 1H or 31p NMR and MS spectra. The crystal structure of representative compound Ⅱh was determined by X-ray

关键词： one-pot reaction phosphite indolephosphonate β-nitrostyrene Arbuzov rearrangement.

Hydroformylation of Oleyl Alcohol Catalyzed by Rh-OPGPP Complex

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Chinese Chemical Letters 2002年第6期13卷 497-498页

作者： Fan Zhi KONG Yan Hua WANG Zi Lin JIN State Key Laboratory of Fine Chemicals Dalian University of TechnologyDalian 116012

Polyether-tailored phosphite modified rhodium complex formed in situ was highly active in the hydroformylation of oleyl alcohol in nonaqueous phosphite/heptane system where the phosphite acted both as the ligand and the second phase. This catalyst was easily separated by simple decantation and can be used for five times with only a slight decrease in activity.

关键词： phosphite hydroformylation oleyl alcohol nonaqueous biphasic catalysis.

N-Heterocyclic Carbenes Catalyzed Phospho-Aldol Reaction of Aldehydes

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Chinese Journal of Chemistry 2013年第12期31卷 1573-1576页

作者： Lin He Zhihua Cai Xiaowei Ma Guangfen Du Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan and School of Chemistry and Chemical Engineering Shihezi University Xinjiang 832000 China

An efficient phospho-aldol reaction of aldehydes catalyzed by N-heterocyclic carbenes （NHCs） has been developed. With 10 mol% stable NHC 1,3-bis（2,6-diisopropylphenyl）imidazol-2-ylidene, various aldehydes reacted with dialkylphosphites smoothly to provide a-hydroxy phosphonates in 59%--99% yield. In this process, NHC was assumed to function as a carbon-centered bronsted base.

关键词： N-heterocyclic carbenes phosphite aldehyde phospho-aldol reaction a-hydroxy phosphonate

Phosphorus oxoanion-intercalated layered double hydroxides for high-performance oxygen evolution

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Nano Research 2017年第5期10卷 1732-1739页

作者： Ma Luo Zhao Cai Cheng Wang Yongmin Bi Li Qian Yongchao Hao Li Li Yun Kuang Yaping Li Xiaodong Lei Ziyang HUO Wen Liu Hailiang Wang Xiaoming Sun Xue Duan State Key Laboratory of Chemical Resource Engineering College of Energy Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 China Department of Chemistry and Energy Sciences Institute Yale University 810 West Campus Drive West Haven CT 06516 USA Chinese Research Academy of Environmental Sciences Beijing 100012 China Queensland Micro- and Nanotechnology Centre Griffith University Brisbane QLD4109 Australia These authors contributed equally to this work.

Rational design and controlled fabrication of efficient and cost-effective electrodes for the oxygen evolution reaction （OER） are critical for addressing the unpre- cedented energy crisis. Nickel-iron layered double hydroxides （NiFe-LDHs） with specific interlayer anions （i.e. phosphate, phosphite, and hypophosphite） were fabricated by a co-predpitation method and investigated as oxygen evolution electrocatalysts. Intercalation of the phosphorus oxoanion enhanced the OER activity in an alkaline solution; the optimal performance （i.e., a low onset potential of 215 mV, a small Tafel slope of 37.7 mV/dec, and stable electrochemical behavior） was achieved with the hypophosphite-intercalated NiFe-LDH catalyst, demonstrating dramatic enhancement over the traditional carbonate-intercalated NiFe-LDH in terms of activity and durability. This enhanced performance is attributed to the interaction between the intercalated phosphorous oxoanions and the edge-sharing MO6 （M = Ni, Fe） layers, which modifies the surface electronic structure of the Ni sites. This concept should be inspiring for the design of more effective LDH-based oxygen evolution electrocatalvsts.

关键词： layered double hydroxide oxygen evolution reaction phosphate phosphite hypophosphite

The Synthesis of New Organophosphorus Compounds Via Michaelis-Arbuzov Rearrangment

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有机化学 1993年第3期13卷 278-281页

作者： JIN Gui-Yu WU Hai-Kun NI Yin-Hai Institute of Elemento-Organic Chemistry, Nankai University, 300071 Tianjin 南开大学元素有机化学研究所

α-bromo tert-butylmethyl ketone and 3-substituted 2,2-dimethylcyclopropane carbonylchloride react with phosphites to give the phosphonates 1 and 4 respectitvly. The bromination of 1 isdescribed.

关键词： michaclis-arbuzov rearrangment phosphite phosphonate