New solid complex of the antimony trichloride and dioxane was obtained th rough a reaction of the dioxane and the absolute methanol solution of the antimony trichloride.The formula of the complex is[SbCl_(3)·{(CH...New solid complex of the antimony trichloride and dioxane was obtained th rough a reaction of the dioxane and the absolute methanol solution of the antimony trichloride.The formula of the complex is[SbCl_(3)·{(CH_(2))_(4)O_(2)}_(1.5)].The crystal structure of the comple x belongs to cubic system,space group I-43d,a=17.1417(5)?,Z=16.The trivalent antimony ion not only bonds directly to three chlorine anions,but also is co ordinated by three oxygen atoms of th e dioxane molecules.Two oxygen atoms in a dioxane molecule wi ll coordinate to different antimony ions,respectively.展开更多
Michael addition of indole and pyrrole to a variety of α, β-unsaturated ketones was efficiently promoted by a catalytic amount of GaCl3 in aqueous media to afford the corresponding products in good to excellent yields.
An efficient method was developed for the conjugate addition of water to various a,β-unsaturated ketones by using bismuth(Ⅲ)chlo ride as a catalyst.The reactions proceeded smoothly in the presence of a catalytic amo...An efficient method was developed for the conjugate addition of water to various a,β-unsaturated ketones by using bismuth(Ⅲ)chlo ride as a catalyst.The reactions proceeded smoothly in the presence of a catalytic amount of BiCl3(20 mol%)in aqueous media to furnish a variety of synthetically usefulβ-hydroxyl ketones in moderate to good yields.Apart from water molecule,various alcohols could also be employed as nucleophiles to react withα,β-unsaturated ketones,leading toβ-alkoxyl ketones in modest to high yields.In addition,the mild reaction conditions also entailed the conjugate addition reactions to proceed with the tolerance to a range of functional groups.展开更多
2,4,6-Trichloroborazine has been recognized as a desirable monomer for the preparation of high-performance boron nitride fibers through polymer derived ceramics route.So a high yield and facile synthesis of 2,4,6-tric...2,4,6-Trichloroborazine has been recognized as a desirable monomer for the preparation of high-performance boron nitride fibers through polymer derived ceramics route.So a high yield and facile synthesis of 2,4,6-trichloroborazine is essential in practice. Using boron trichloride-dimethylsulfide complex((CH_3)_2S·BCl_3) and ammonium chloride(NH_4Cl) as starting materials and toluene(C_6H_5CH_3) as solvent,the synthesis of 2,4,6-trichloroborazine to give high yield is reported.展开更多
A new method for preparation of N-tosylimines by InCl_3-mediated condensation of aldehydes with p-toluenesulfonamide in refluxing benzene is reported.The procedure is lauded by its simplicity,mild reaction conditions,...A new method for preparation of N-tosylimines by InCl_3-mediated condensation of aldehydes with p-toluenesulfonamide in refluxing benzene is reported.The procedure is lauded by its simplicity,mild reaction conditions,excellent yields and adaptability to electron deficient and electron rich aromatic,andα,β-unsaturated aldehydes.展开更多
The Knoevenagel condensation of acetylacetone with aldehydes catalyzed by indium trichloride was carried out at room temperature in acetonitrile to give aryl- or alkylideneacetylacetones in moderate to good yields.
A convenient approach on transesterification to preparing the complexee of β-alkoycarbonylethyltin trichlorides with dibenzylsulfoxide (DBSO) andhexametkylphosphoramide (HMPA) was reported. The structures of complex...A convenient approach on transesterification to preparing the complexee of β-alkoycarbonylethyltin trichlorides with dibenzylsulfoxide (DBSO) andhexametkylphosphoramide (HMPA) was reported. The structures of complexes were characterized by elemental analysis, IR, 1HNMR and X-ray single crystal diffraction.The possible mechanism for the transesterification of complexes of β-onylethyltin trichloride with an alcohol was suggested展开更多
The effect of iron trichloride （FeC13） on chemical mechanical polishing （CMP） of Ge2Sb2Te5 （GST） film is inves- tigated in this paper. The polishing rate of GST increases from 38 nm/min to 144 nm/min when the Fe...The effect of iron trichloride （FeC13） on chemical mechanical polishing （CMP） of Ge2Sb2Te5 （GST） film is inves- tigated in this paper. The polishing rate of GST increases from 38 nm/min to 144 nm/min when the FeC13 concentration changes from 0.01 wt% to 0.15 wt%, which is much faster than 20 nm/min for the 1 wt% H2O2-based slurry. This polish- ing rate trends are inversely correlated with the contact angle data of FeCl3-based slurry on the GST film surface. Thus, it is hypothesized that the hydrophilicity of the GST film surface is associated with the polishing rate during CMP. Atomic force microscope （AFM） and optical microscope （OM） are used to characterize the surface quality after CMP. The chemical mechanism is studied by potentiodynamic measurements such as Ecorr and Icorr to analyze chemical reaction between FeCl3 and GST surface. Finally, it is verified that slurry with FeCl3 has no influence on the electrical property of the post-CMP GST film by the resistivity-temperature （RT） tests.展开更多
The derivatives of β-alkoxycarbonylethyltin trichlorides with diethyldithiocarbamate,ROCOCH2CH2Sn(S2CNEt2)Cl2, were synthesized and characterized by the means of elemental analysis, IR, 1H NMR and X-ray single crysta...The derivatives of β-alkoxycarbonylethyltin trichlorides with diethyldithiocarbamate,ROCOCH2CH2Sn(S2CNEt2)Cl2, were synthesized and characterized by the means of elemental analysis, IR, 1H NMR and X-ray single crystal diffraction. The structural features of the compounds were described, and the possible mechanism of transesterification for compound 2a was suggested.展开更多
The solubility of ferroalloyed neodymium in molten salt containing neodymium trichloride and the de- pendence of solubility on temperature and composition of the melt are determined by means of electrochemical method....The solubility of ferroalloyed neodymium in molten salt containing neodymium trichloride and the de- pendence of solubility on temperature and composition of the melt are determined by means of electrochemical method.The data obtained are in good agreement with result of chemical analysis of the quenched molten salt samples.展开更多
Oxiranes as well as four and five membered rings of cyclic ethers were cleaved with acyl chloride in the presence of samarium trichloride or Eu(hfe)_3 as Lewis-acid catalyst under mild conditions,the oorresponding chl...Oxiranes as well as four and five membered rings of cyclic ethers were cleaved with acyl chloride in the presence of samarium trichloride or Eu(hfe)_3 as Lewis-acid catalyst under mild conditions,the oorresponding chloroesters were obtained readily and smoothly in excellent yields.展开更多
To investigate the effects of aluminum trichloride （AlCl3） on renal structure and function in chickens, the chickens were injected continuously with different gradient AlCl3 for 60 days to establish sub-chronic alum...To investigate the effects of aluminum trichloride （AlCl3） on renal structure and function in chickens, the chickens were injected continuously with different gradient AlCl3 for 60 days to establish sub-chronic aluminum （Al） intoxication model. The AI concentration in serum and kidney, contents of creatinine （Cr） and blood urea nitrogen （BUN） in serum were detected, and the renal structure was also observed by optical microscope. The results showed that the A1 concentration in serum and kidney, the contents of Cr and BUN in serum were significantly higher in Al-treated chickens than those in the control group （P〈0.05; P〈0.01） and there was an AlCl3 dose-depended manner. Histopathologically, in the low dose group, acinus renis swelled mildly and there were no apparent pathological changes in nephric tubule and proximal convoluted tubule. In the middle and high dose group, acinus renis swelled, glomerular cells increased, nephric tubule cloudy swelled, and epithelial cells of proximal convoluted tubule swelled. The results indicated that sub-chronic Al exposure impaired the renal structure and function in chickens.展开更多
The complexes of 2-Alkoxycarbonylalkyltin Trichlorides with 2-Salicylideneamino-phenol have been synthesized and characterized by means of elemental analysis, lR, 1H-NMR andX-ray single crystal diffraction. The struct...The complexes of 2-Alkoxycarbonylalkyltin Trichlorides with 2-Salicylideneamino-phenol have been synthesized and characterized by means of elemental analysis, lR, 1H-NMR andX-ray single crystal diffraction. The structural features of the complexes are described.展开更多
文摘New solid complex of the antimony trichloride and dioxane was obtained th rough a reaction of the dioxane and the absolute methanol solution of the antimony trichloride.The formula of the complex is[SbCl_(3)·{(CH_(2))_(4)O_(2)}_(1.5)].The crystal structure of the comple x belongs to cubic system,space group I-43d,a=17.1417(5)?,Z=16.The trivalent antimony ion not only bonds directly to three chlorine anions,but also is co ordinated by three oxygen atoms of th e dioxane molecules.Two oxygen atoms in a dioxane molecule wi ll coordinate to different antimony ions,respectively.
基金support by the Natural Science Foundation of Zhejiang Province(No.Y4051137,Y405015 and Y4080177)
文摘Michael addition of indole and pyrrole to a variety of α, β-unsaturated ketones was efficiently promoted by a catalytic amount of GaCl3 in aqueous media to afford the corresponding products in good to excellent yields.
基金financial support from Nanjing Tech University(Start-up Grant No.39837118)Yancheng Teachers University,and Nanjing Forestry University。
文摘An efficient method was developed for the conjugate addition of water to various a,β-unsaturated ketones by using bismuth(Ⅲ)chlo ride as a catalyst.The reactions proceeded smoothly in the presence of a catalytic amount of BiCl3(20 mol%)in aqueous media to furnish a variety of synthetically usefulβ-hydroxyl ketones in moderate to good yields.Apart from water molecule,various alcohols could also be employed as nucleophiles to react withα,β-unsaturated ketones,leading toβ-alkoxyl ketones in modest to high yields.In addition,the mild reaction conditions also entailed the conjugate addition reactions to proceed with the tolerance to a range of functional groups.
基金the National"863"Program(No.2006AA03A217) for financial support of the research
文摘2,4,6-Trichloroborazine has been recognized as a desirable monomer for the preparation of high-performance boron nitride fibers through polymer derived ceramics route.So a high yield and facile synthesis of 2,4,6-trichloroborazine is essential in practice. Using boron trichloride-dimethylsulfide complex((CH_3)_2S·BCl_3) and ammonium chloride(NH_4Cl) as starting materials and toluene(C_6H_5CH_3) as solvent,the synthesis of 2,4,6-trichloroborazine to give high yield is reported.
文摘A new method for preparation of N-tosylimines by InCl_3-mediated condensation of aldehydes with p-toluenesulfonamide in refluxing benzene is reported.The procedure is lauded by its simplicity,mild reaction conditions,excellent yields and adaptability to electron deficient and electron rich aromatic,andα,β-unsaturated aldehydes.
文摘The Knoevenagel condensation of acetylacetone with aldehydes catalyzed by indium trichloride was carried out at room temperature in acetonitrile to give aryl- or alkylideneacetylacetones in moderate to good yields.
文摘A convenient approach on transesterification to preparing the complexee of β-alkoycarbonylethyltin trichlorides with dibenzylsulfoxide (DBSO) andhexametkylphosphoramide (HMPA) was reported. The structures of complexes were characterized by elemental analysis, IR, 1HNMR and X-ray single crystal diffraction.The possible mechanism for the transesterification of complexes of β-onylethyltin trichloride with an alcohol was suggested
基金Project supported by the National Integrate Circuit Research Program of China(Grant Nos.2011ZX02704-002 and 2009ZX02030-001)the Funds fromthe Science and Technology Council of Shanghai,China(Grant Nos.0952nm00200 and 10QB1403600)the Chinese Academy of Sciences Visiting Professorship for Senior International Scientists
文摘The effect of iron trichloride （FeC13） on chemical mechanical polishing （CMP） of Ge2Sb2Te5 （GST） film is inves- tigated in this paper. The polishing rate of GST increases from 38 nm/min to 144 nm/min when the FeC13 concentration changes from 0.01 wt% to 0.15 wt%, which is much faster than 20 nm/min for the 1 wt% H2O2-based slurry. This polish- ing rate trends are inversely correlated with the contact angle data of FeCl3-based slurry on the GST film surface. Thus, it is hypothesized that the hydrophilicity of the GST film surface is associated with the polishing rate during CMP. Atomic force microscope （AFM） and optical microscope （OM） are used to characterize the surface quality after CMP. The chemical mechanism is studied by potentiodynamic measurements such as Ecorr and Icorr to analyze chemical reaction between FeCl3 and GST surface. Finally, it is verified that slurry with FeCl3 has no influence on the electrical property of the post-CMP GST film by the resistivity-temperature （RT） tests.
文摘The derivatives of β-alkoxycarbonylethyltin trichlorides with diethyldithiocarbamate,ROCOCH2CH2Sn(S2CNEt2)Cl2, were synthesized and characterized by the means of elemental analysis, IR, 1H NMR and X-ray single crystal diffraction. The structural features of the compounds were described, and the possible mechanism of transesterification for compound 2a was suggested.
文摘The solubility of ferroalloyed neodymium in molten salt containing neodymium trichloride and the de- pendence of solubility on temperature and composition of the melt are determined by means of electrochemical method.The data obtained are in good agreement with result of chemical analysis of the quenched molten salt samples.
文摘Oxiranes as well as four and five membered rings of cyclic ethers were cleaved with acyl chloride in the presence of samarium trichloride or Eu(hfe)_3 as Lewis-acid catalyst under mild conditions,the oorresponding chloroesters were obtained readily and smoothly in excellent yields.
基金Supported by the National Natural Science Foundation of China (31172375)
文摘To investigate the effects of aluminum trichloride （AlCl3） on renal structure and function in chickens, the chickens were injected continuously with different gradient AlCl3 for 60 days to establish sub-chronic aluminum （Al） intoxication model. The AI concentration in serum and kidney, contents of creatinine （Cr） and blood urea nitrogen （BUN） in serum were detected, and the renal structure was also observed by optical microscope. The results showed that the A1 concentration in serum and kidney, the contents of Cr and BUN in serum were significantly higher in Al-treated chickens than those in the control group （P〈0.05; P〈0.01） and there was an AlCl3 dose-depended manner. Histopathologically, in the low dose group, acinus renis swelled mildly and there were no apparent pathological changes in nephric tubule and proximal convoluted tubule. In the middle and high dose group, acinus renis swelled, glomerular cells increased, nephric tubule cloudy swelled, and epithelial cells of proximal convoluted tubule swelled. The results indicated that sub-chronic Al exposure impaired the renal structure and function in chickens.
文摘The complexes of 2-Alkoxycarbonylalkyltin Trichlorides with 2-Salicylideneamino-phenol have been synthesized and characterized by means of elemental analysis, lR, 1H-NMR andX-ray single crystal diffraction. The structural features of the complexes are described.
