Regioselective Synthesis of Multi-substituted Phenylselenomethyl Isoxazolines

A mild, regioselective 1, 3-dipolar cycloaddition protocol for the preparation ofphenylselenomethyl isoxazolines through substituted allyl phenyl selenides and nitrile oxides wasreported.     

One-pot Synthesis of 2, 5-Disubstituted Oxazoles Using Poly[styrene（iodosodiacetate）]

2,5-Disubstituted oxazoles were prepared conveniently by treatment of aromatic α-methyl ketones and nitriles with poly[styrene(iodosodiacetate)] in one-pot process.     

多官能团分枝状化合物的合成研究 Ⅳ.三方向醚-酰胺键型分枝状大分子的合成

本文报道三方向醚-酰胺键型多官能团分枝状大分子(Cascade)的合成.目标化合物以甘油、硝基甲烷为三方向起始核心,以从季碳原子三倍对称分散的化合物1～3为分支侧链.通过醚键进行空间延伸,以酰胺键进行分枝连接,经过一代或两代,所合成的分枝状大分子的末端官能团数是原起始核心的三倍或九倍.本文可为进一步的分枝反应提供基本的设计合成方法.     

金属锡促进的a-澳代醋与二硒醚反应合成a一硒代醋

本文报道在四氢吠喃中通过金属锡促进Q_澳代酷与二硒醚反应生成a一硒代酷，反应条件温和，产率良好.     

乙醇-水混合溶液中1-苯基-3-甲基-4-苯甲酰基吡唑酮-5对Nd(Ⅲ), Eu(Ⅲ),Ho(Ⅲ)的萃取及其机理

在乙醇－水混合溶液中，1－苯基－3－甲基－4－苯甲酰基吡唑酮－5与Nd(Ⅲ）,Eu(Ⅲ）,Ho(Ⅲ）等及乙醇形成了萃合物，使萃取分配比明显提高。利用斜率法研究了萃取机理。借助红外（IR）、元素分析、热分析（TG－DTA）等手段对萃合物进行了表征。     

2-碘-N-甲基苯磺酰胺的合成新方法和分子结构

选用新方法合成了2-碘—N-甲基苯磺酰胺，通过^1H NMR,^13C NMR,^13C DEPT NMR(Distortionless Enhancement by Polarization Transfer NMR)和MS确证的其结构。     

Indriect Determination of CTMAB with Sodium Chloride and Ammonium Thiocyanate by Floatation and Separation of Zine

A new method for indirect determination of cetyl-trimethyl ammonium bromide (CTMAB) with NaCl and NH4SCH by floatation and separation of zinc has been studied.The study shows that Zn(Ⅱ） can associate with NH4SCN and CTMAB to form insoluble ternary ion-association complex,and the precipitate can float on the surface of the liquid phase.A good linear relationship is observed between the floatation yield(E%) of Zn(Ⅱ） and the amount of CTMAB.On the ground,CTMAB Can be indirectly determined by determining E% of Zn(Ⅱ）.The results were satisfactory.