bluuebunny/crossref_metadata_2025_split huggingface dataset:
Solid state synthesis and structure of two novel polyoxometalates [(n‐Bu)4N]4[M6O19][Ag2I4](MMo, W)†
Authors: Hong‐Wei Hou , Xin‐Quan Xin , Kai‐Bei Yu , Zhe‐Min Wang , Shi‐Xiong Liu , Jin‐Ling Huang 
Published: September 2010

AbstractThe reaction of [NH4]2[MO2S2], AgI and (n‐Bu)4NBr in solid state produced the polyoxometalates [(n‐Bu)4N]4[M6O19][Ag2I4] (1, MMo; 2, MW) which were structurally determined. The crystals of 1 and 2 are isomorphous, monoclinic, space group P21/c. 1, a = l.6624(2), b=1.6699(3), c=l.7217(2) nm, β=98.29(1)°, V=4.729(1) nm3, Z=2, R=0.040, Rw“0.037; 2, a = 1.6636(3), b = 1.6733(3), c = 1.7190(3) nm, β=98.25(1)°, V=4.736(l) nm3, Z = 2, R = 0.038, Rw = 0.047. The results of the structure determination showed that the two compounds had the same structures whose skeletons are composed of [Ag2I4]2. and [M6O19]2‐. The difference of them and heteropolymetalate compounds synthesized in solution is that the title compounds contain cluster. ion, heteropolymetalate and organic cations, while the latter is only composed of heteropolymetalate and organic cations.
Chlorophyll a photoelectrochemical cells with different metal electrodes
Authors: Yun‐Yu Han , Wu Zhou , Shao‐Fen Lu , Rui‐Ling Zhou 
Published: September 2010

AbstractA photosensitive electrode was prepared by electrodepositing a membrane of chlorophyll a (Chla) on a SnO2 optical transparent electrode, with which and a metal counter electrode a Chla photoelectrochemical cell was formed. Photoinduced current (Ii;) and photoinduced voltage (Vi) of the cell were measured. The dependence of Ii on the properties of metal electrodes was obvious, which was illustrated with mechanism of Chla photoelectrical effects. Ii in this work was as high as 2×0–5 A.cm−2.
Cationic polymerization of 1,3‐pentadiene in the presence of arenes
Authors: Yu‐Xing Peng , Jia‐Lin Liu , Lin‐Feng Cun , Han‐Song Dai 
Published: September 2010

AbstractThe cationic polymerizations of 1,3‐pentadiene initiated by AlCl3 in n‐hexane at 30°C have been carried out in the presence of various arenes, i.e., benzene, toluene, p‐xylene, o‐xylene, m‐xylene and mesitylene. The presence of all these arenes have reduced in different degrees the formation of crosslinked products. Namely, the crosslinking reaction, a major side‐reaction during the cationic polymerization of 1,3‐pentadiene, has been suppressed by adding the aromatic compounds. The results showed that a chain transfer to arene took place and this transfer process hindered the generation of the crosslinked polymer. IR and 1H NMR spectra have confirmed the existence of the corresponding aryl groups in the resulting polymers.
Computer‐assisted optimization of temperature programming and flow rate in capillary gas Chromatography
Authors: Qin‐Sun Wang , Chang‐Shou Zhu , Bing‐Wen Yan , Zhi‐Chao Zhang 
Published: September 2010

AbstractA computer‐assisted method is presented for simultaneous optimization of three‐factor of temperature programming (initial temperature, temperature rising rate and carrier gas flow rate) for the separation of eleven compounds in capillary gas chromatography. The optimization of the separation over the experimental region is based on a special polynomial from fifteen preliminary experiments using the resolution as the selection criterion. Computer scanning technique was used for optimum selection on three dimensions. Excellent agreement was found between the predicted data and the experimental results.
Comparison study of several numerical integration schemes used in calculations of density functional theory,
Authors: Gong‐Yi Hong , Le‐Min Li 
Published: September 2010

AbstractSeveral numerical integration schemes for the evaluation of matrix elements in density functional theory calculations have been studied and compared by computational practice. The best scheme was found to be the combination of the atomic partition [function proposed by Becke with the scaled generalized Gauss‐Laguerre quadrature formula for radial integration suggested by Yang, which achieve the highest convergence rate to the numerical integration. With the same number of integration points, the accuracy of the calculated results by this scheme is higher by 1 to 2 orders of magnitudes than that by other schemes. The reason for achieving higher accuracy by this scheme has been proposed preliminarily.
Fluorescence quenching of eosin upon adsorption by colloidal silver mediated in aqueous solution and reverse Micelles
Authors: Ling Zang , Tao Shen 
Published: September 2010

AbstractThe optical effects of the adsorption of eosin on the colloidal silver particle have been investigated in aqueous solutions. It was found that upon adsorption the fluorescence of eosin was effectively quenched. This was explained as the photoinduced interfacial electron transfer from the excited singlet state of eosin to the silver particle. Decreasing pH of the solution favors the adsorption of eosin and so enhances the fluorescence quenching. For comparison, the fluorescence quenching in reverse micelles was also investigated. The quenching behavior was much different from that mediated in aqueous solution. This was attributed to the unique microenvironment of reverse micelles.
Computer‐assisted optimization of mobile phase compositions and development distance selectivity in gradient two‐step development high‐performance thin‐layer chromatography
Authors: Bing‐Wen Yan , Ling Zhang , Qin‐Sun Wang 
Published: September 2010

AbstractA computer‐assisted method is presented for optimization of mobile phase compositions and development distance in gradient two‐step development HPTLC. The method is based on a system which can predict the final Rf values for gradient two‐step development from values measured using five preliminary runs. The statistical scanning method is then used for optimization, using Rf difference as the selection criterion. The method was evaluated using a mixture of eight components. Excellent agreement was obtained between predicted and experimental results.
Semiempirical prediction of the hyperpolarizabilities for cyanovinyl‐substituted donor‐acceptor molecules
Authors: Cun‐Yuan Zhao , Yong Zhang , Wei‐Hai Fang , Xiao‐Zeng You 
Published: September 2010

AbstractWe present here a systematically theoretical study on the nonlinearities and their structure‐property relationship of cyanovinyl‐substituted donor‐acceptor molecules by virtue of semiempirical PM3/AM1‐FF approach. Good consistency between measured and calculated hyperpolarizabilities is obtained. Results show that conformation has a significant effect on hyperpolarizabilities. The torsion angle change between two conjugated parts of the molecular systems can substantially alter the nonlinearities. The total amount of charge transfer difference from donor to acceptor has been introduced to understand the microscopic nature of the nonlinear optical properties for the title molecules. General guidelines may be sought out in the search of molecules with large values of β. Some molecules with large molecular hyperpolarizabilities can be predicted by the optimization for the longer δ‐electron systems with both acceptor and donor groups.
Luminescent properties of Ba3(PO4)2:Eu, Tb phosphors
Authors: Yong Gao , Chun‐Shan Shi 
Published: September 2010

AbstractLuminescence of europium (III), europium(II) and terbium(III) has been observed in Ba3(PO4)2:Eu, Tb phosphors which are synthesized in air atmosphere. The valence state of europium is influenced by amount of terbium. It is notable that the relative intensity of the emission spectra peaks corresponding to Eu2+ is increased if the amount of Tb3+ is increased. These phenomena can be explained by an electron transfer mechanism. We predict a new kind of two‐rare‐earth codoped trichromatic phosphors in Ba3(PO4)2 matrix.
A novel solid state Michael addition reaction of N‐heterocyclic compounds containing active C—H bond
Authors: Xiao‐Lu Li , Yong‐Mei Wang , Bing Tian , Ji‐Ben Meng 
Published: September 2010

AbstractIn this paper, a novel solid state Michael‐type addition reaction of N‐heterocyclic compounds containing the active‐CH group was investigated. 3‐Methyl‐l‐phenyl‐5‐pyrazolone (MPP) and indole (In) reacted with 4‐arylmethylene‐3‐methyl‐l‐phenyl‐5‐pyrazolone (1) in the solid state at room temperature to give the corresponding adducts, aryl‐4,4′‐bis(5‐hydroxy‐3‐methyl‐l‐phenylpyrazolyl) methane (2a—n) and l‐aryl‐l‐(5′‐hydroxy‐3′‐methyl‐L'‐phenyl‐4′‐pyrazolyl)‐l‐(3′‐indolyl) methane (Sa—n), respectively. This is a feasible method for preparing the compound which contains two heterocyclic groups on the same carbon.
Studies on the reaction of 3‐substituted‐4‐hydroxy‐2H‐1,2‐benzothiazine 1,1‐dioxides with aryl isocyanates and the synthesis of corresponding derivatives
Authors: Guo‐Feng Zhao , Hua‐Zheng Yang 
Published: September 2010

AbstractThe reaction of 3‐substituted‐4‐hydroxy‐2H‐l,2‐benzothiazine 1,1‐dioxides with aryl isocyanate under different equivalents of strong base NaH was studied. Seventeen of new derivatives were obtained whose structures were characterized by 1H NMR, IR, MS, elementary analysis and FeCl3 test.
Study on thermal stability of poled non‐linear optical polymers
Authors: Yu‐Quan Shen , Yu‐Chun Yang , Ling Qiu , Xing‐Fa Fu , Shang‐Xian Yu , Jiang‐Nan Gu , G.R. Möhlmann , C.P.J.M. Van Der Vorst 
Published: September 2010

AbstractA logarithmic expression is proposed to describe relaxation of the polar order in side chain polymers, together with a new way of plotting temperature dependent relaxation data. This results in a straight line extending even below the glass transition temperature in the case of poled nonlinear optics (NLO) side chain polymers. A simple procedure to determine the rotational diffusion constant Dr is given and Dr values of several polymer systems have been evaluated and compared with each other. It appears that, starting from the conventional and well known poled polymer system currently applied, a further lowering of Dr by about 3 orders of magnitude is necessary in order to reach an acceptable orientational stability or lifetime of poled polymers for practical applications. Attempts have been made to introduce electron push‐pull substituents into high thermostable molecular frameworks and results of preliminary measurements are reported.
In‐situ FTIR studies of dimethyl ether adsorption on H‐ZSM‐5 zeolites
Authors: Xuan‐Zhen Jiang 
Published: September 2010

AbstractIn situ infrared spectra of dimethyl ether adsorbed on two H‐ZSM‐5 zeolites are reported which are different in both lattice and extraframework aluminium contents. A number of dissociatively adsorbed dimethyl ether species associated respectively with the Bronsted acid sites, the external silanol groups and extraframework aluminium species at different temperatures are identified. In particular, dimethyl ether reacts with non acidic hydroxyl species associated with extraframework aluminium to form the third methoxy species. The distributions of hydrocarbons desorbed from a single pulse of dimethyl ether (1.0 mL) onto these zeolite samples are presented. Propene is the major product, and the yield of hydrocarbons correlates with the concentration of Bronsted acid bound methoxy groups.
The synthesis and fluorescence of a methoxy‐phenyl substituted C60‐pyrrolidine derivative
Authors: Zhou De‐Jian , Gan Liang‐Bing , Luo Chu‐Ping , Huang Chun‐Hui , Yao Guang‐Qing 
Published: September 2010

AbstractA new 4‐methoxyphenyl substituted C60‐pyrrolidine derivative, C60(C10H13NO) (1), was prepared and its room‐temperature fluorescence waa studied. Its fluorescence intensity is three times stronger than that of C60. Its singlet energy was estimated to be 25 kJ/mol lower than that of C60. The fluorescence lifetime was determined to be 2.1±0.3 ns by using the frequency domain method. The fluorescence quenching by concentration and aromatic electron donor: N, N‐dimethyl aniline (DMA) wan investigated. Data show that its fluorescence could not be quenched by DMA.
Luminescence of RE3+ and energy transfer from Gd3+ to RE3+ (RE = Dy, Eu) in SrGdAlO4:RE3+
Authors: Liu Sheng‐Li , Su Qiang 
Published: September 2010

AbstractSpectral properties of Gd3+, Dy3+ and Eu3+ ions in SrGdAlO4 are reported in detail.A cooperativ vibronic transition of Gd3+ and the emission from the higher 5DJ (J=1, 2, 3) levels of Eu3+ were observed. Energy transfer occurs from Gd3+ to Dy3+ and to Eu3+. The influence of Gd3+ and Dy3+ concentrations on the luminescence intensity is discussed.
A two‐step approach to 2‐polyfluoroalkyl quinolines from N‐aryl polyfluoroalkyl imidoyl iodides
Authors: Yu Hong‐Bin , Zhang Qi‐Sheng , Huang Wei‐Yuan 
Published: September 2010

Abstract2‐Polyfluoroalkyl quinoline derivatives were synthesized from the enaminones which were obtained from the reaction of N‐aryl polyfluoroalkyl imidoyl iodides with methyl ketones.
Synthesis and crystal structure of an ionic cluster {[Mo3(μ3‐O)(μ‐S)3(dtp)3(py)3][CdI(dtp)2]}
Authors: Lu Shao‐Fang , Huang Jian‐Quan , Huang Xiao‐Ying , Wu Qiang‐Jin 
Published: September 2010

AbstractA new cluster compound {[Mo3(μ3‐O)(μ‐S)3(dtp)3(py)3][CdI(dtp)2]} (dtp=S2P(O‐C2H5)−2) was obtained from the reaction of [Mo3OS3(dtp)4(H2O)] with a CdI2‐Bu4NI mixture. The molecular structure is composed of a cluster cation [Mo3OS3(dtp)3(py)3]+ and the complex anion [CdI(dtp)2]−. Crystal data: Triclinic, space group P1 with cell parameters a=1.4672(7), b=1.5356(5), c= 1.6806(5) nm, α=74.59(3), β=67.89(4), γ=78.86(3)°, V=3.364(2) nm3, and Z=2, least‐squares refinement of 8941 reflections gives a final agreement factor of R=0.052, Rw=0.065.
Theoretical studies on the mechanism of α‐hydroxy‐acid gas‐phase elimination process and its substituent effect
Authors: Song Wei‐Ping , He Shao‐Ren , Fu Xiao‐Yuan 
Published: September 2010

AbstractThe α‐hydroxy‐acid gas‐phase elimination process has been studied theoretically by HF/3‐21G. The calculated results can be summed up as follows: (1) The elimination process is a stepwise reaction. In the first step, a membered ring intermediate is formed via a 5‐membered ring transition state; while the product is formed in the second step via a 3‐membered ring transition state. (2) The obtained results of the substituent effect show that the increase of electronic donation of the alkyl groups is favorable for the reaction. Other substituents which show the electron‐withdrawing inductive effect (e.g. Cl, CN, CF3) are unfavorable for this process.
Fluorescence quenching of para‐substituted styrenes by tetramethylethylene. Correlation analysis of the quenching coefficient KSV and the quenching rate constant kq by the dual‐parameter equation with polar and spin‐delocalization substituent constants
Authors: Zhang Yu‐Huang , Jiang Bin , Jiang Xi‐Kui 
Published: September 2010

AbstractThe fluorescence quenching coefficient (KSV) and the quenching rate constant kq of ten para‐substituted styrenes (1‐Ys) have been measured and correlation‐analyzed by both the dual‐parameter equation (Eq. 1) with (ρxσx + ρ· σ·) and the single‐parameter equation (Eq. 2) with ρxσx. Excellent results have been obtained for the correlation of KSV against (ρxσmb + ρ· σ·JJ) or (ρxσ+ + ρ· σ·JJ ). Our results suggest that, possibly, there might be no need to use excited‐state substituent constant for the fluorescence quenching process of excited states of styrenes.
NMR study on solubility of benzyl alcohol and its transfer free energy from D2O to cationic micelle
Authors: Shen Qiang , Li Gan‐Zuo , Ma Cheng‐Song , Hao Shu‐Xuan , Wei Xi‐Lian , Huang Yan‐Zhang 
Published: September 2010

AbstractA new kind of surfactant, [CnH2n+1 OCH2CH(OH)CH2N(CH3)3]Cl (n=12, 14, 16) was synthesized. The solubility of benzyl alcohol in micellar solutions was determined by 1H NMR method. The results indicate that the length of alkyl chains of surfactant affects the solubility of benzyl alcohol in 2.5 × 10−2 mol/L micellar solutions. The solubility of benzyl alcohol per liter of micellar solution is 0.095 mole for n=12, 0.115 mole for n=14, 0.165 mole for n=16. The transfer free energy of benzyl alcohol from aqueous phase to micellar phase is −24.29 kJ/mol for n=12, −24.37 kJ/mol for n=14, −24.49 kJ/mol for n=16.
Synthesis and characterization of μ‐oxamido copper(II)‐iron(II) heterobinuclear complexes with an antiferromagnetic exchange interaction
Authors: Yan Cui‐Wei , Li Yan‐Tuan , Liao Dai‐Zheng 
Published: September 2010

AbstractFour new μ‐oxamido heterobinuclear complexes have been synthesized and identified as [Cu(oxap)Fe(L)2]SO4, where oxap denotes the N, N'‐bis(2‐aminopropyl)oxamido dianion and L represents diaminoethane (en); 1,3‐diaminopropane (pn); 1,2‐diaminopropane (ap) and 2,9‐dimethyl‐l,10‐phenanthroline (Me2‐phen). Based on the elemental analyses, spectroscopic studies, magnetic moments (at room temperature) and molar conductivity measurements, extended oxamido‐bridged structures consisting of a copper(II) and an iron(II) ions, which have a square planar environment and an octahedral environment, respectively, are proposed for these complexes. Complexes [Cu(oxap)Fe(en)2]SO4 (1) and [Cu(oxap)Fe(pn)2]SO4 (2) have been characterized by variable temperature magnetic susceptibility (4.2∼'300 K) and the observed data were least‐squares fitted to the susceptibility equation derived from the spin Hamiltonian including single‐ion aero‐field interaction for the iron(II) ion, H=−2JŜ1 ·;Ŝ2—DŜ2zl, giving the exchange integrals J=−21.9 cm−1 for 1 and J=−23.6 cm−1 for 2. These results are commensurate with antiferromagnetic interactions between adjacent metal ions within each molecule.
Regioselective addtion of 5‐amino‐3‐benzylthio‐1,2,4‐triazole and its analogues with aryl isocyanates
Authors: Lu Rong‐Jian , Qian Bao‐Ying , Deng Hai‐Yan , Yang Hua‐Zheng 
Published: September 2010

AbstractThe orientation of the addition of 5‐amino‐3‐benzylthio‐1,2,4‐triazole and its analogues (pyrazole) (1) with the aryl isocyanate can be directed by controlling the reaction temperature and one of the product, 5‐amino‐1‐arylaminocarbonyl‐3‐benzylthio‐1,2,4‐triazole (pyrazole) (2), can rearrange at 170°C to another product, 5‐arylureylene‐3‐benzylthio‐1,2,4‐triazole (pyrazole) (3). A plausible mechanism explanation for this rearrangement reaction was presented. It was suggested that the rearrangement reaction could be referred to the thermodynamics transposition leading to the predominant 5‐arylureylene‐3‐benzylthio‐1,2,4‐triazole energy preferentially.
Bioreduction of quinone derivatives by immobilized Baker's yeast in hexane
Authors: Lian‐Quam Gu , Hai‐Feng Wei , Xiao‐Chun Zhang , Gui Xu , Lin Ma 
Published: September 2010

AbstractImmobilization techniques and biocatalytic transformations performed in organic media are new developing methods for organic reactions. Baker's yeast was immobilized on the alginate supports. This preparation contained about 20% of dry yeast cells. The immobilized Baker's yeast were found to be very effective in the reduction of O‐benzoquinone, p‐benzoquinones, naphthoquinones, and anthraquinones in hexane.
Study on the syntheses of new 1‐o‐chlorobenzoyl‐3‐(5′‐substituted phenylamino‐6′‐phenyl)‐1′,2′,4′‐triazinyl ureas
Authors: Jian‐Ping Zou , Run‐Sheng Zeng , Ai‐Fen Wang , Zhong‐E Lu 
Published: September 2010

AbstractEight new l‐o‐chlorobenzoyl‐3‐(5′‐substituted phenylamino‐6′‐phenyl)‐1′,2′,4′‐triazinyl ureas (5a–h) have been synthesized and their bioactivities were detected.
Synthesis of propyl O‐(α‐L‐rhamnopyranosyl)‐(1→3)‐[2,4‐di‐O‐(2s‐methylbutyryl)‐α‐L‐rhamnopyranosyl]‐(1→2)=(3‐O‐acetyl‐β‐D‐glucopyranosyl)‐(1→2)‐βp‐D‐fucopyranoside, the tetrasaccharide moiety of Tricolorin A
Authors: Shou‐F'U Lu , Qin‐Qin Ouyang , Zhong‐Wu Guo , Biao W , Yong‐Zheng Hui 
Published: September 2010

AbstractPropyl O‐(α‐L‐rhamnopyranosyl)‐(1→3)‐[2,4di‐O‐(2s‐methylbutyryl)‐α‐L‐rhamnopyranosyl]‐(1→2)‐(3‐O‐acetyl‐β‐glucopyranosyl)‐(1→2)‐β‐D‐fucopyranoside (1), the tetrasaccharide moiety of Ricolorin A, was synthesized in total 23 steps with a longest linear sequence of 10 steps, and overall yield of 3.7% from D‐Glucose. The isomerization of the dioxolane‐type benzylidene in the prance of NIS/AgOTf was observed. Tetrasaccharide 1 exhibited no activity against the cultured P388 cell as Tricolorin A did.
Synthesis and photophysical properties of porphyrin‐phthalocyanine heterodimer linked by piperazine
Authors: Xi‐You Li , Qing‐Fu Zhou , Hong‐Jian Tian , Hui‐Jun Xu 
Published: September 2010

AbstractA porphyrin‐phthalocyanine heterodimer linked by piperazine has been synthesized and characterized by spectroscopic methods. UV‐visible absorption spectra indicated the presence of weak intramolecular interaction between the two chromophores. Selective excitation of the porphyrin moiety leads to energy transfer process to the phthalocyanine subunit. Furthermore, on the bases of the solvent‐dependent fluorescence data, a competing electron transfer reaction is shown to occur in this heterodimer. The efficiency of both photophysical processes depends strongly on solvent polarity and is related to the separation distance of the two chromophores and their relative orientation. The value of ΔG obtained using the Rehm‐Weller equation clearly indicates that the heterodimer exists preferably in the “boat form” upon excitation in good agreement with the experimental results of co‐occurence of energy and electron transfer process observed for the heterodimer.
5‐Fluorouracil derivatives XXIII. Synthesis and antitumor activities of 1‐carbamoyl‐5‐fluorouracils having aromatic ring
Authors: Shoichiro Ozaki , Xiang‐Zheng Kong , Yutaka Watanabe , Tomonori Hoshiko , Tomio Ogasawara , Takao Ueno , Uiroyuki Furukawa , Masaaki Iigo , Akio Hoshi 
Published: September 2010

AbstractIn order to get good antitumor agents especially better than 5‐fluorouracil, tegafur and l‐hexylcarbamoyl‐5‐fluorouracil (HCFU), fourty nine 1‐carbamoyl‐5‐fluorouracil having aromatic ring were synthesized from 5‐fluorouracil and isocyanates or mines. Antitumor activity was tested in the L1210 tumor system, and 5 compounds gave better value of therapeutic ratio than 5‐fluorouracil, tegafur, HCFU. 1‐(4‐Methoxybenzylcarbamoyl)‐5‐fluorouracil gave the best result.
Parallel and serial dual electrode detectors for capillary electrophoresis
Authors: Jian‐Nong Ye , Xue‐Wei Zhao , Yu‐Zhi Fang , Richard P. Baldwin 
Published: September 2010

AbstractApplication of parallel and serial dual electrode detectors for capillary electrophoresis was first described. In parallel dual electrode approach, two 100 μm‐diameter Cu disks arranged side by side were used as the dual working electrode for the simultaneous determination of a mixture of carbohydrates and amino acids. In serial dual electrode approach, two working electrodes were arranged in a disk‐ring manner for the simultaneous determination of both cysteine and cystine; the disk electrode was Hg/Au serving as the upstream electrode, the ring electrode was 5% CoPC carbon paste serving aa the downstream electrode.
Kinetic studies on the aggregation behavior of phosphatidylcholines and their analogs
Authors: Guo‐Zhen Ji , Ya‐Qiu Long , Xi‐Kui Jiang 
Published: September 2010

AbstractPhosphatidylcholines (Ln's) and their neutral analogs 1,2‐diacyl‐sn‐glycerol‐3‐phosphoric acid bromoethyl esters (Pn's) have been found to exhibit different aggregation behaviors brought about by hydrophobic‐lipophilic interactions (HLI) by means of kinetic probe in MeOH‐H2O binary aquiorganic systems. The effects of the structure and the environment on the interesting aggregation of the amphiphilic molecules are discussed.
Preparation and reaction of bis (perfluoroalkanesulfonyl)methyl halides
Authors: Shi‐Zheng Zhu , Guo‐Lin Xu , Chao‐Yue Qin , Yong Xu , Qian‐Lk Chu 
Published: September 2010

AbstractHalogenation of the potassium or silver salts of bis(trifluoromethanesulfonyl)methane (CF3SO2)2CH2 and its cyclo analogues 1 with N‐fluoro‐bis(trifluoromethanesulfonyl)imine [(CF3SO3)2NF], chlorine or bromine gave good yields of the corresponding α‐halo disulfone (CF3SO2)2CHX and cyclo analogues 9, 10. The chemical transformation of these fluorinated α‐halo‐disulfones are described.