bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synthesis and Properties of Triphenylgermanium Heteroaromatic Carboxylates and Crystal Structure of Triphenylgermanium 2‐Furoate
Authors: Yin Han‐Dong , Wang Chuan‐Hua , Wang Yong , Zhang Ru‐Fen , Ma Chun‐Lin , Tao Xu‐Quan 
Published: September 2010

AbstractTen triphenylgermanium heteroaromatic carboxylates Ph3GeO2CR (where R=2‐furanyl, 2‐furanvinyl, 2‐(5‐tertbutyl) furanyl, 2‐thiophenyl, 2‐pyridinyl, 3‐pyridinyl, 4‐pyridinyl, 3‐indolyl, 3‐indolylmethyl, 3‐indolylpropyl) were synthesized by the reaction of sodium heteroaromatic carboxylates with the triphenylgermanium chloride. All compounds were characterized by elemental analysis, 1H NMR and MS spectra. The compounds were tested against two human tumour cell lines: MCF‐7 and WiDr. The results showed that they had high activities. The crystal structure of triphenylgermanium 2‐furoate was determined by X‐ray single crystal diffraction. The crystal belongs to monoclinic with space group P21/c, a = 1.1545(4), b=0.9934(3), c = 1.6284(5) nm, β= 91.59(5), Z = 4. In this crystal, the structure consists of discrete molecule containing four‐coordinate germanium atom in a distored tetrahedron.
Synthesis of Novel Chiral Biphenylamine Ligand 6,6'‐Dimethoxy‐2,2′‐diaminobiphenyl
Authors: Chen Yi‐Xin , Li Yue‐Ming , Lam Kim‐Hung , Chan Altera S. C. 
Published: September 2010

AbstractA new chiral ligand 6,6′‐dimethoxy‐2,2′‐diaminobiphenyl was successfully prepared from 3‐nitrophenol via iodination, Ullmann coupling, and reduction. The resolving reagent (2R, 3R)‐ or (2S,3S)‐2,3‐di (phenylaminocarbonyl)tartaric acid was prepared from commercially available tartaric acid in large scale and was used to resolve the racemic 6,6′‐dimethoxy‐2,2′‐diaminobiphenyl. The chiral 6,6′‐ dimethoxy‐2,2′‐diaminobiphenyl obtained was proved to be enantiomerically pure.
Microwave Induced Synthesis of 3‐Aryl‐6‐(6‐/8‐substituted 4‐chloroquinoline‐3‐yl) ‐ s ‐triazolo [3,4‐b] −1,3,4‐thiadiazoles
Authors: Qiao Ren‐Zhong , Hui Xta‐Ptag , Xu Peng‐Fei , Zhang Zi‐Yi , Cheng Dong‐Liang 
Published: September 2010

AbstractThe condensation of 4‐amino‐3‐aryl‐5‐mercapto‐1, 2, 4‐triazoles (1a‐f) with 6‐/8‐substituted 1,4‐dihydro‐4‐oxo‐quinoline‐3‐carboxylic adds (2a‐d) in the presence of phosphorus oxychloride on refluxng or under microwave irradiation gave twenty four novel 3‐aryl‐6‐ (6‐/8‐substituted 4‐chloroquinoline‐3‐yl)‐s‐triazolo[3,4‐b]‐1, 3,4‐thiadiazoles (4a‐x), Considerable increase in the reaction rate has been observed with improved yields under microwave irradiation. The structures of the compounds synthesized were determined by elemental analyses, IR, 1H NMR and MS spectra. Their spectral properties and the reaction mechanism were also discussed. The preliminary biological test showed that some of compounds bad moderate antibacterial activities.
Preparation and Stabilization of Emulsifier‐free Macromolecule Nanoparticle Latex Particles
Authors: You U‐Sha , Wu Hua‐Qiang , Zhang Wen‐Min , Fu Zhong , Shen Liang‐Jun 
Published: September 2010

AbstractBy using acetone‐water as the medium and potassium persulfate (KFS) as the initiator, emulsifier‐free emulsion co‐polymerization of styrene with co‐monomers: MMA, BMA, EA and BDA under microwave irradiation has been investigated. The influence of the each co‐monomer content and hydrophilicity on the hydrodynamic radius Rh of the synthesized copolymer nanoparticles is discussed in detail. The results show mat the increase in ratio of hydrophilic copolymer causes an increase in consumption of the initiator in the initiation reaction, so an increase in the concentration of the surface OSO3 groups which cause the increase in the stability of the latex and gives rise to the formation of smaller micelles. The nano‐particle radius will increase again when the co‐monomer content increases to a certain degree. The curve of the particle hydrodynamic radius vs the co‐monomer content has a minimum point.
Synthesis and Photophysical Properties of C60‐carbazole Adducts
Authors: Yin Gui , Mao Xin‐Ping , Suo Zhi‐Yong , Xu Zheng 
Published: September 2010

AbstractThree C60‐carbazole adducts have been synthesized by 1, 3‐dipolar cycloaddition reaction. Intramolecular energy/electron transfer from carbazole to C60 was observed by steady‐state absorption and fluorescence spectra. The fluorescence spectra of these adducts were similar to each other and dependent on the excitation wavelength and solvent.
Studies on the Mechanism for the Bimolecular Metathesis Reaction CH3 + HCI ⇔︁ CH4 + CI
Authors: Zhou Zheng‐Yu , Chen Guang , Zhou Xin‐Ming , Fu Hui 
Published: September 2010

AbstractThe geometry optimization of the transition state, the precursor complex and the successor complex was performed at the 6–311G* basis set level. From the analysis of the vibrational frequency of the precursor complex, transition state, successor complex and the isolated state, the reaction mechanism was derived which was complicated with the bond‐rupture electron transfer theory. The atom H in molecule HCI attacks the atom C, forming a transition state via the precursor complex and the electron‐transfer happens in precursor complex. And the active energy, electronic coupling matrix element, the reorganization energy, and the reaction rate are obtained.
Simultaneous Determination of Vitamin B Complex Using Wavelet Neural Network
Authors: Yin Chun‐Sheng , Guo Wei‐Min , Liu Shu‐Shen , Shen Yang , Pan Zhong‐Xiao , Wang Lian‐Sheng 
Published: September 2010

AbstractA simultaneous determination of four components of B‐group vitamin, using a novel wavelet‐based neural network (WNN), combined with correlation coefficient and standard deviation approach for wavelength selection, was reported in this work. Eleven representative wavelength points were selected from each original UV spectrum, based on correlation coefficients and standard deviations of the observed data. A family of wavelet basic functions built from Morlet wavelet was adopted to improve the transfer quality of output data and solve the problems of training difficultly involved in neural networks. The predicted results, with fitting correlation coefficients (R = 0.9998–0.9999) and rooted mean squares errors (RMS = 0.0578–0.1478), are satisfactory.
Crystal Structure and Spectroscopic Studies of Bis (morpholine dithiocarbamate) Nickel(II) Complex, Ni(C4H8ONCS2)2
Authors: Pan Su , Wang Ying 
Published: September 2010

AbstractThe title compound has been prepared and characterized by EA, IR and TG spectral studies. The crystal structure of nickel (H) bis(morpholine dithiocarbamate) Ni(C4H5ONC‐S2)2 is determined by X‐ray diffraction methods. It crystallizes in the monoclinic system, space group P21/n, with lattice parameters a = 0.4288(1), b = 2.0526(4), c = 0.8333 (2) nm, β = 97.43(3)°, and Z = 2. In the structure, central Ni atom coordination geometry is slightly distorted square‐planar with the four S atoms from two morpholine dithiocarbamate ligands. The four NiS bond distances are in the range of 0.2199(5)–0.2201(2) nm. The ER spectral data are in agreement with the structural ones. The TG data indicate that it decomposed completely at the 766.89°C.
Formation and Molecular Structure of an Ion Pair Iron (II) Compound Derived from 2,6‐Bis‐ [1‐(2,6‐dibromophenylimino) ‐ethyl] pyridine and 2‐Acetyl‐6‐[1‐(2, 6‐dibromophenylimino)‐ethyl] pyridine
Authors: Chen Rui‐Fang , Qian Chang‐Tao , Sun Jie 
Published: September 2010

AbstractTwo novel tridentate ligands of 2,6‐bis‐[l‐(2,6‐dibromophenylimino) ethyl] pyridine (L1) and2‐acetyl‐6‐[1‐(2,6‐dibromophenylimino) ethyl] pyridine (L2) have been synthesized. The iron(II) complex of L1 and L2 has been characterized with the crystal structure of [Fe(L1)(L2)]2+ [FeCl4]2 CH2Cl2 [monoclinic, P21 (#11), a = 1.0562(4), b = 2.0928(4), c = 1.2914(2) nm, β = 100.12°, V = 2.810(1) nm3 Dc = 1.879 g/cm3 and Z = 2].
Liquid Crystalline Thiadiazole Derivatives: Thiadiazole Derivatives Containing Pyridine Ring as Terminal Group
Authors: Xu Yan , Zhu Zhi‐Guo , Xu Zheng 
Published: September 2010

AbstractThe synthesis and mesomorphic behavior of a new series of liquid crystals containing 1, 3, 4‐thiadiazole and pyridine rings with ‐CH = N‐ central group are reported. All compounds exhibit enantiotropic smectic A mesophase, but the Schiff's base analogues have no mesomorphic behavior. The influence of the pyridine ring and thiadiazole ring is discussed.
Atom Transfer Radical Polymerization of Styrene Using a Bifunctional Initiator
Authors: Yuan Jin‐Ying , Zheng Quan , Tao Lei , Pan Cai‐Yuan 
Published: September 2010

AbstractA bifunctional alkyl halide, namely l, 2‐bis(2′‐bromobutyryl) ethane (BBrBE), was synthesized and used to initiate the bulk atom transfer radical polymerization (ATRP) of styrene (St) at 110°C in the presence of CuBr/2,2′‐bipyridyl. The narrow polydispersity of polystyrene (PSt) with precisely two arms could be synthesized. The initiate ability of the two active bromide functional groups at both sides of BBrBE for St and the propagation ability of the two arms were confirmed to be similar by the characterization of the individual arms obtained upon hydrolysis of the ester link between the core and the branches.
Glycosides from the Leaves of Ilex latifolia
Authors: Ouyang Ming‐An 
Published: September 2010

AbstractNine new triterpenoid saponins; latifolosides IQ and three known compounds: Kudinoside A, cis‐roseoside, and kaempferol‐3‐O‐α‐L‐rhamnopyranosyl (1–6)‐O‐β‐D‐glucopyanoside were isolated from the leaves of Ilex latifolia. Their structures were elucidated by spectroscopic and chemical methods.
Reductive Coupling Reaction of Aryliminomethylferrocenes with Triethyl Orthoformate Induced by Low‐valent Titanium
Authors: Gong Jun‐Fang , Wu Yang‐Jie , Gui Xiu‐Ling , Du Chen‐Xia , Zhu Yu 
Published: September 2010

AbstractReductive coupling reaction of aryliminomethylferrocenes FcCH = NAr[(1, Ar=QHs (a), p‐ClC6H4 (b), p‐BrC6H4 (c), p‐CH3C6H4 (d), m‐ClC6H4 (e)] with triethyl orthoformate (2) in Zn‐TiCl4 system gave three kinds of products: 1, 3‐diaryl‐4, 5‐diferrocenyl imidazolidines (3), N, N‐disubstituted formamides (4), and 1, 2‐diferrocenyl ethylene (5). 1H NMR spectra proved that all the compounds 3 obtained were dl‐isomers. All the new compounds 3 and 4 were characterized by elemental analysis, 1H NMR, 13C NMR (for 3) and IR spectra. The molecular structure of 3c was determined by X‐ray diffraction.
Crystal Structure and Electrospray Mass Spectrum of Tris(2, 5‐dioxopyrrolidin‐1‐ylmethyl) amine
Authors: Zheng Hang‐Jun , Jin Lin‐Pei , Guo Jian‐Quan , Zhuang Jin‐You , Zhu Long‐Gen , Mei Yu‐Hua 
Published: September 2010

AbstractA novel N‐Mannich base tris(2, 5‐dioxopyrrolidin‐1‐ylmethyl)‐amine (TDOPMA) was synthesized and its structure was determined by single crystal X‐ray diffraction. Unlike NH3 molecule, three C‐N‐C bond angles containing the central N atom in the tide compound are unequal and about 9° larger than H‐N‐H angles of NH3 molecule. Electrospray ionization (ESI) mass spectrometry was applied to the title compound. Its fragments were interpreted and possible fragmentation mechanism was given.
Stereoselective Synthesis of (E)‐Cinnamates with Sm/HOAc
Authors: Fan Xue‐Sen , Zhang Yong‐Min 
Published: September 2010

AbstractThe reductive desulfonylation of α‐phenylsulfonylcinnamates promoted by Sm/HOAc led to the corresponding (E)‐cinnamates stereoselectively in good yields under mild conditions.
In situ monitoring of the rising of aqueous solution meniscus for a partially immersed silver electrode during electrochemical reduction of oxygen
Authors: Xie Qing‐Ji , Zhang You‐Yu , Guo Yang‐Hui , Su Xiao‐Li , Li Yun‐Long , Yao Shou‐Zhuo 
Published: September 2010

AbstractRising phenomena of aqueous solution meniscus were found for the silver electrode of a 5 MHz piezoelectric quartz crystal (PQC) partially immersed in Na2SO4, NaClO4, HClO4 and NaF aqueous solutions at oxygen reduction potentials, respectively. A detailed study revealed that a decrease in contact‐angle hysteresis (or a contact‐angle decrease) and a continued collection of the water product at the solid‐gas‐solution interface during oxygen reduction, rather than the electrocapillary effect and an agitation effect induced by the oscillation of PQC, are responsible for the meniscus‐rising phenomena. In addition, in situ determination of the immersed height of a partially immersed Ag electrode was studied on the basis of simultaneous measurements of the electroacoustic admittance and electrochemical impedance.
Electrochemical study on interaction of vincristine with tubulin
Authors: Yu Yong , Li Qi‐Long 
Published: September 2010

AbstractIn Tris (0.005 mol/L)‐NaCl (0.05 mol/L) buffer solution (pH = 7.10), keeping temperature at 37°C, a highly sensitive reduction peak of the antitumor agent was obtained by linear sweep voltammetry. The peak potential is‐1.56 V (vs. SCE). The peak current is proportional to the concentration of vincristine over the range of 2.1 ± 10−7‐4.2 ± 10−6 mol/L with the detection limit of 1.0 ± 10−7 mol/L. The behavior of the binding of vincristine to tubulin was studied. The results showed that the reaction of tubulin dimer with vincristine formed an electrochemically active complex to be 1:2. Its stability constant is 2.5 ± 1014. The reduction process of the complex is irreversible with adsorptive characteristics.
Preparation and properties of vesicles from condensable amphiphilic amino acids
Authors: Xiong Xiang‐Yuan , He Wei , Li Zi‐Chen , Li Fu‐Mian 
Published: September 2010

AbstractThree double‐chain amphiphiles with amino acid groups as hydrophilic moiety were synthesized. These amphiphiles can be easily dispersed in buffer solution to form transparent dispersion. Examination of the dispersion by transmission electron microscopy (TEM) showed the formation of stable vesicular aggregates, which was also confirmed by the ability to encapsulate water‐soluble dyes. Since amino acid groups are located on the surface of the vesicles, water‐soluble carbodiimide can induce the condensation of these groups to form peptide. The phase transition temperatures of these vesicles were estimated by differential scanning calorimetry (DSC), and a decrease of phase transition temperature was observed after polycondensation due to the disturbance of the ordered arrangement of the hydrophobic chains. The leakage rate of the vesicles before and after condensation was studied by monitoring the increase of fluorescence intensity of water‐soluble dye. These vesicles belong to the least permeable ones and the leakage rate can be controlled by varying the degree of condensation or the temperature.
Synthesis, structure and antitumor activity of dibutyltin oxide complex with 5‐fluorouracil derivatives
Authors: Zuo Dai‐Shu , Jiang Tao , Guan Hua‐Shi , Qi Xin , Wang Kui‐Qi , Shi Zhan 
Published: September 2010

AbstractThe dibutyltin(IV) oxide complex reacts with 5‐fluorouracil‐l‐propanonic or5‐fluorouracil‐1‐acetic acid to give the potential antitumor activity complexes [(5‐fluorouracil)‐1‐(CH2)mCOOSn(Bu‐n)2]4O2[m = 1, (1); m = 2, (2)] which were determined by IR and 1H NMR. The crystal structure determination shows that complex 2 is a dimmer, in which two [(5‐fluorouracil)‐1‐CH2CH2COOSn(Bu‐n)2]2O units are linked by bridging oxygen atom, and the tin atoms adopt distorted trigonal bipyramids via two carbons from dibutyl group and three oxygen atoms from 5‐fluorouracil and bridging oxygen. In vitro test shows complexes 1 and 2 exhibit high cytotoxicity against OVCAR‐3 and PC‐14.
Two new dialkoxy‐substituted nido‐platinaundecaboranes: [(PPh3)2PtB10H10‐8,10–2(OCH2CH3)] ± CH2Cl2(I), { (PPh3)2‐PtB10H10‐8,10–2[OCH(CH3)2]} (II)
Authors: Yong Wei , Hu Chun‐Hua , Dou Jian‐Min , Sun Jie , Hu Ke‐Ji , Jin Ruo Shui , Zheng Pei‐Ju 
Published: September 2010

AbstractTwo title nido‐11‐vertex platinaundecaboranes, 7,7‐bis‐(triphenylphosphine‐P)‐8, 10‐diethoxy‐8, 9:10, 11‐bis‐μ‐H‐7‐platina‐nido‐undecaborane‐dichloromethane (I) and 7,7‐bis‐(triphenylphosphine‐P) ‐8, 10‐di(i‐propoxy) ‐8,9:10,11‐bis‐μ‐H‐7‐platina‐nido‐undecaborane (II), were prepared and their structures were determined by single crystal X‐ray diffraction method. Each of them has an 11‐vertex nido‐polyhedral skeleton. {PtB10} cage is substituted by two ethoxy or i‐propoxy groups at 8 and 10 positions, respectively.
Ab Initio calculation of 19F NMR chemical shielding for alkaline‐earth‐metal fluorides
Authors: Cai Shu‐Hui , Chen Ztang , Lu Xin , Chen Zw‐Wei , Wan Hui‐Lin 
Published: September 2010

AbstractGauge‐independent atomic orbital (GIAO) method at Hartree‐Fock (HF) and density functional theory (DFT) levels, respectively, was employed to calculate 19F NMR chemical shieldings of solid state alkaline‐earth‐metal fluorides MF2 (M = Mg, Ca, Sr, Ba). The results show that, although the calculated 19F chemical shieldings tend to be larger than the experimental values, they have a fairly good linear relationship with the observed ones. The calculated results based on different combinations of basis sets show that the B3LYP (a hybrid of DFT with HF) predictions are greatly superior to the HF predictions. When a basis set of metal atom with effective core potential (ECP) has well representation of valence wavefunction, especially wavefunction of d component, and proper definition of core electron number, it can be applied to obtain 19F chemical shielding which is close to that of all‐electron calculation. The variation of 19F chemical shielding of alkaline‐earth‐metal fluorides correlates well with the lattice factor A/R2.
Structures and their influence factors of three‐dimensional fractal cadmium layer formed by electrodeposition
Authors: Jiang Li‐Min , Tian Zhong‐Qun , Ren Bin 
Published: September 2010

AbstractThree‐dimensional fractal structure of the electrodeposited cadmium layer was investigated. The results suggested that the fractal growth begin with nanometer scale aggregate within which the atoms arrange in hexagonal close‐packed lattice (the normal cadmium lattice). The fractal structure is correlated to the current density. The higher the current density is, the larger the size of fractal growth will be. Fractal structures can emerge in both the complete diffusion‐limited process and the combination‐limited process of the electrochemical reaction and diffusion. The fractal structure obtained from the simple hydrated ion electrolyte is different from that obtained from the complex ion electrolyte, which indicates they grow in different modes. The fractal dimensionality of deposit from the simple hydrated ion electrolyte is 2.592, smaller than that (2.608) from the complex ion electrolyte.
Studies on chemistry and immuno‐ modulating mechanism of a glycoconjugate fromLycium barbarumL.
Authors: Peng Xue‐Mei , Huang Lin‐Juan , Qi Chun‐Hui , Zhang Yong‐Xiang , Tian Geng‐Yuan 
Published: September 2010

AbstractThe detailed structure of anO‐glycan derived from the fruit ofLycium barbarumL. was elucidated based on glycosidic linkage analysis, complete and partial acid hydrolysis,1H‐NMR and13C NMR spectroscopy. According to the experiments, the carbohydrate was in the form of polysacchride (arabinogalactan) chains with highly branched 3, 4‐galactans and terminal arabinofuranosyl substituents.The immuno‐modulating mechanism of glycoconjugate and its glycan were investigated using tritium thymidine incorporation assay, flow cytometry assay and electrophoretical mobility shift assay (EMSA). The results suggested that the immunoactive components of the fruit ofLycium barbarumL. could enhance the splenocyte proliferation in normal mice and the effects of glycan chain were stronger than those of glycoconjugate. The target cell was most likely to be B‐lymphocyte, on which existed receptor binding site acting with the glycan. In addition, the immuno‐stimulatory effect of glycoconjugate (LbGp4) and its glycan (LbGp4‐OL) was associated with activating the expression of nuclear factor KB (NF‐KB) and activator protein 1 (AP‐1).
Rheological properties of the aqueous solution for fluorocarbon‐containing hydrophobically modified sodium polyacrylic acid with various surfactants
Authors: Guo Jin‐Feng , Zhuang Dong‐Qing , Zhou Hui , Zhang Yun‐Xiang 
Published: September 2010

AbstractThe interaction of fluorocarbon‐ containing hydrophobically modified sodium polyacrylic acid (FMPAANa) (0.5 wt%) with various surfactants (anionic, nonionic and cationic) has been investigated by rheological measurements. Different rheological behaviors are displayed for ionic surfactants and nonionic surfactants. Fluorinated surfactants have stronger affinity with polyelectrolyte hydrophobes comparing with hydrogenated surfactants. The hydrophobic association of FMPAANa with a cationic surfactant (CTAB) and a fluorinated nonionic surfactant (FC171) is much stronger than with a nonionic surfactant (NP7. 5) and an anionic surfactant (FC143). Further investigation of the effects of temperature on solution properties shows that the dissociation energy Em is correlated to the strength of the aggregated junctions.
Photoinduced and thermal reactions of α‐cyano‐β‐bromomethylcinnamide with 1‐benzyl‐1,4‐dihydronicotinamide
Authors: Dai Dan‐Mei , Liu You‐Cheng , Li Jing 
Published: September 2010

AbstractThe photoinduced reaction of a mixture of (Z)‐α‐cyano‐β‐bromomethylcinnamide (1) and (E)‐α‐cyano‐β‐bromomethylcinnamide (2) with 1‐benzyl‐1, 4‐dihydronicotinamide produces a mixture of the (E)‐ and (Z)‐ isomers of α‐cyano‐β‐methylcinnamide (3 and 4). Using spin‐trapping technique for monitoring reactive intermediate, it is shown that the reaction proceeds via electron transfer‐debromination‐H abstraction mechanism. The thermal reaction of the same substrate with BNAH at 60°C in the dark gives three products: the (E)‐ and (Z)‐isomers of α‐cyano‐β‐methylcinnamide and a dehydrodimeric product; 2, 7‐dicyano‐3, 6‐diphenylocta‐2, 4, 6‐trien‐1, 8‐dioic amide (7). Based on product analysis, scavenger experiment and cyclic voltammetry, an electron transfer‐debromination‐disproportionation mechanism is proposed.
Asymmetric catalytic epoxidation of enones by chiral binaphthol‐derived lanthanum catalyst
Authors: Chen Rui‐Fang , Qian Chang‐Tao , De Vries Johannes G. , Sun Pei‐Pei , Wang Li‐Ming 
Published: September 2010

AbstractAsymmetric epoxidation of chalcone catalyzed by chiral (5)‐6, 6′‐diphenyl‐BINOL‐lanthanum complex affords the corresponding epoxychalcone with excellent yields as well as the good enantioselective excesses of 93%. The influences of solvent, the temperature, the structure of the chiral ligand, as well as the substrate on the stereochemistry were discussed.
Synthesis and Electrospray Ionization Mass Spectra of Amino Acid Thiophosphoramidates of Nucleoside
Authors: Miao Zhi‐Wei , Fu Hua , Chen Yi , Chen Jingd , Cheng Chang‐Mei , Zhao Yu‐Fen 
Published: September 2010

AbstractAmino acid thiophosphoramidates of nucleoside were synthesized and determined by negative ion electrospray ionization mass spectrometry (ESI‐MS) in conjunction with tandem mass spectrometry (MS/MS). Hie fragmentation pathways were investigated. The results show that ESI‐MS is a useful tool for structural determination of amino acid thiophosphoramidates of nucleoside.
Reactions of fluoroalkanesulfonyl azides with diethyl phosphite, a new method for the synthesis of N‐fluoroalkane‐sulfonylphosphoramidates
Authors: Zhu Shi‐Zheng , Xu Yong , Wang Yan‐Li , Peng Wei‐Min 
Published: September 2010

AbstractN‐Fluoroalkanesulfonylphosphoramidates, R1SO2NHP(O)‐(OEt)2, have been prepared by a one‐step reaction of fluoroalkanesulfonyl azides (R1SO2N3) with diethyl phosphite at room temperature. The reaction mechanism was also discussed and a favored mechanism was suggested.
A new and facile synthesis of 6‐methyl‐2‐trifluoromethyl‐4‐(O,O‐ dialkyl) phosphoryl‐ quinoline
Authors: Gong Deng‐Huang , Li Jin‐Feng , Yuan Cheng‐Ye 
Published: September 2010

AbstractPalladium‐catalyzed coupling reaction of trifluoromethylacetimidoyl iodide with dialkyl vinylphosphonates afforded trifluoromethylated and phosphorylated α, β‐unsatured imines, which gave corresponding quinoline derivatives upon cyclization with Pd/C in nitrobenzene.