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1.
通过4-RC6HCHO与2-(4-甲基苯基)-5-(4-联苯基)恶唑(R=H,Me,Et,i-Pr,i-Bu,Ph,OMe,F,Cl,Br)在碱催化下的缩合反应合成了10个新的反式-2-(2-(4-取代苯基)乙烯基)苯基)-5-(4-联苯基)恶唑类化合物,经元素分析,IR,UV及MS确定了它们的结构,并测定了荧光发射光谱,荧光量子产率和激光转换效率。  相似文献   

2.
通过η5-R~1C_5H_4(CO)_3MNa与η~5-R~2C_5H_4(CO)_3MNa(M=Mo,W)以及η~5-R~1C_5H_4(CO)_3MoNa与η~5-R~2C_5H_4(CO)_3WNa在Fe_2(SO_4)_3醋酸水溶液作用下的交叉氧化偶联反应,合成了7个新的非对称型金属单键化合物η~5-R~1C_5H_4(CO)-3Mo─Mo(CO)_3C_5H_4R~2-η~5(R~1,R~2:C(O)Me,CO2Et),η5-R1C5N4(CO)3W─W(CO)3C5H4R2-η5(R1,R2:C(O)Me,CO2Et;H,CO2Et)和η5-R1C5H4(CO)3Mo─W(CO)3C5H4R2-η5(R1,R2:C(O)Me,H;Et,C(O)Me;C(O)Me,n-Bu;CO2Me,n-Bu).用C/N分析、IR、1HNMR和MS表征了它们的结构,并对该氧化偶联反应的特点进行了讨论.  相似文献   

3.
苯丁锡(Torgue[PhMe2CCH2)3Sn]2O)是高效杀螨剂[1],国内已实现工业化生产.为了寻找更好的有机锡杀螨剂新品种,人们曾对托尔克进行衍生化,合成了某些三(2-甲基-2-苯基丙基)锡芳氧乙酸酯[2]和某些长链羧酸及取代苯甲酸酯的衍生物[3].本文拟合成系列新的三(2-甲基-2-苯基丙基)锡羧酸酯,并对目标化合物进行了结构表征和生物活性测定,反应式如下:(PhMe2CCH2)3SnCl(1)NaOH(2)RCOOH(PhMe2CCH2)3SnO2CRR=CH3(1),C2H5(2)…  相似文献   

4.
通过SnCl_2对化合物Me_2Si[η~5-C_5H_4Fe(CO)]_2(μ-CO)_2(Ⅰ)中Fe-Fe键的插入反应以及Ⅰ被Na-Hg齐还原所生成的相应双铁负离子{Me_2Si[η~5-C_5H_4Fe(CO)_2]_2}~(2-)与SnR_2Cl_2(R=Me,Ph)的亲核反应,合成了环状化合物Me_2Si[η~5-C_5H_4Fe(CO)_2]_2SnR_2[R=Cl(1),Me(2),Ph(3)]。以元素分析、IR和~1HNMR谱表征了它们的结构,并用X射线衍射测定了配合物3的晶体结构。3为单斜晶系,空间群P2_1/n,a=1.0384(3)nm,b=1.6384(1)nm,c=1.5762(5)nm,β=97.93(2)°,V=2.656(2)nm~3,Z=4,Dx=1.71g/mL。  相似文献   

5.
标题化合物(Me_2SiSiMe_2)[η ̄5-(3-Me_3SiC_5H_3)Fe(CO)_2]_2/(μ-CO)_2(A)分子中的Fe-Fe键被钠汞齐还原断裂,生成相应的双铁负离子,分别与MeCOCl、PhCOCl、PhCH_2Cl、ClCH_2COOC_2H_5和Ph_3SnCl进行亲核取代反应,生成在铁原子上引入相应取代基的产物(Me_2SiSiMe_2)[η ̄5-(3-Me_3SiC_5H_3)Fe(CO)_2R]_2(R:MeCO(1),PhCO(2),PhCH_2(3),CH_2COOC_2H_5(4),Ph_3Sn(5),I(6))。A在氯仿中与碘反应,得到Fe-Fe断裂的双铁碘化物,但在苯中与过量碘反应,则得到Fe-I-Fe桥联的离子型化合物(Me_2SiSiMe_2)[η ̄5-(3-Me_3SiC_5H_3)Fe(CO)_2]_2I·I(7)。化合物6的晶体和分子结构经X射线衍射测定,6属单斜晶系,P21/c空间群,a=1.7217(4)nm,b=0.7753(2)nm,C=1.3629(7)nm,β=103.80(3)°,V=1.767(2)nm3,Z=4,Dc=1.6299·cm-1,最终偏差因子R=0.054。  相似文献   

6.
标题化合物(Me2SiSiMe2)〔η^5-(3-Me3SiC5H3)Fe(CO)2〕2/(μ-CO)2(A)分子中的Fe-Fe键被钠汞齐还原断裂,生成相应的双铁负离子,分别与MeCOCl、PhCOCl、PhCH2Cl、ClCH2COOC2H5和Ph3SnCl进行亲核取代反应,生成在铁原子上引入相应取代基的产物(Me2SiSiMe2)〔η^5-(3-Me3SiC5H3)Fe(CO)2R〕2(R:M  相似文献   

7.
1 INTRODUCTIONDimolybdenumalkynecomplexes〔Mo2(μR1C≡CR2)(CO)4(η5C5H5)2〕canreactwithavarietyofreagentssuchasphosphines,thiols,elementalsulfur,Ru3(CO)12andCo2(CO)8〔1-4〕.Intheproductsthealkyneligandisusuallyretained.Sometimes,alkynescissionoccurs.Being…  相似文献   

8.
三羰基环戊二烯基钼负离子与1,3-二卤丙烷在一缩二乙二醇二甲醚介质中反应,生成环卡宾配合物CpMoX(CO2)CO(CH2)2CH2(X=Br.I)硅桥连双环戊二烯基三羰基钼负离子与1,3-二卤丙烷顺利地进行类似反应,生成相应的硅桥连双(环卡宾钼配合物)-E(C5H1MoX(CO)2CO(CH2)2CH2)2(E=Me2Si,Me2SiSiMe2,Me2SiOSiMe2),化合物硅氧硅桥联二茂二钼  相似文献   

9.
用X射线衍微法测定了由η^5-MeO2CC5H4(CO)3MoNa和〔(η^5-MeO2CC5H4)(CO)2W〕Fe-(CO)3Co(CO)3(μ3-S)的等瓣置换反应所生成的手性簇合物-〔(η^5-MeO2CC5H4)(CO)2Mo〕-〔(η^5-MeO2CC5H4)(CO)2W〕Fe(CO)3(μ3-S)的分子结构及晶体结构。晶体属P1空间群,晶胞参数a=0.87162(5)nm,b=0.8  相似文献   

10.
通过η^5-R^1C5H4(CO)3MHa与η^5-R^2C5H4(CO)2MNa(M=Mo,W)以及η^5-R^1C5H4(CO)3MoNa与η^5-R^2C5H4(CO)3WNa在Fe2(SO4)3醋酸水溶液作用下的交叉氧化偶联反应,合成了7个新的非对称型金属单键化合物η^5-R^1C5H4(CO)3Mo-Mo(CO)3C5H4R^2-η^5(R^1,R^2:C(O)Me,CO2Et),η^5  相似文献   

11.
以碘化亚铜为催化剂,对硝基苯胺与对碘苯乙醚经取代反应制得4-乙氧基-N-(4-硝基苯)苯胺(1);1与对氟苯甲醛在碳酸钾作用下经取代反应制得4-(N-4-硝基苯-N-4-乙氧基苯)氨基苯甲醛(2);2经Na BH4还原合成了新化合物4-羟甲基-N-(4-乙氧基苯基)-N-(4'-硝基苯基)苯胺,其结构经1H NMR,13C NMR和IR表征。  相似文献   

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15.
2,2-Dialkyl(phenyl)-4-(2-hydroxyethyl)thiadiazin-5-ones are formed as a result of the reaction of thioglycolic acid with 2-hydroxyethylhydrazones. The structures of the reaction products were proved by PMR and 13C NMR spectrometry and the mass spectra.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 838–839, June, 1991.  相似文献   

16.
紫外光固化反应分为自由基固化机理、阳离子固化机理,以及自由基-阳离子混杂固化机理。自由基-阳离子混杂固化是指在同一体系里同时发生自由基光聚合反应和阳离子光聚合反应[1],结合了前两类聚合反应的优点,表现出很好的协同效应[2]。[4-(4-苯甲酰基苯氧基)苯]苯基碘鎓六氟磷酸  相似文献   

17.

4-(2-Chloroethoxy)phenyl (CEP) aglycon belongs to the class of Janus aglycons and has already been used as a pre-spacer in the synthesis of neoglycoconjugates and as a temporary protective group in the synthesis of oligosaccharides. In the present work, a set of glycosides of various monosaccharides containing CEP aglycon was synthesized. The possibility of modification of CEP aglycon was demonstrated using the corresponding lactoside as an example.

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The reactions of 2-arylindoles with strong electrophiles take place with significant resin formation. It was shown that electrophilic substitution is directed into the indole ring and into the side chain. 1,7-Migration of the substituent is observed in the investigated systems.  相似文献   

20.
In neutral phosphate buffer solutions of pH 7.4, the inclusive complexation of 5-(2-hydroxy phenyl)-10,15,20-tris(4-methoxy phenyl) porphyrin (o-HTPP) with alpha-cyclodextrin (alpha-CD), beta-CD, heptakis (2,3,6-tri-O-methyl)-beta-CD (TM-beta-CD), SBE-beta-CD, HP-beta-CD and gamma-CD has been examined by means of UV-vis and fluorescence spectroscopy. The formation of inclusion complexes has been confirmed on the base of changes of spectroscopy properties. The o-HTPP forms 1:2 inclusion complexes with TM-beta-CD and 1:1 inclusion complexes with the other five cyclodextrins. The formation constants (K) of o-HTPP for the formation of the inclusion complexes have been estimated from the absorbance and fluorescence intensity changes in neutral phosphate buffer solutions. The K value (2.89x10(7)), which is the formation constant for the formation of the 1:2 inclusion supramolecular, is nearly 10(4) times than those of the 1:1 inclusion complexes. Compared to the other five cyclodextrins, the strongest inclusion ability of TM-beta-CD can be explained that the hydrogen bond plays significant role in the inclusion process. UV-vis experiments also showed that the cavity of TM-beta-CD causes the transform of the state of o-HTPP. In addition (1)H NMR data and 2D-ROSEY NMR spectra support the inclusion conformation of the o-HTPP-CD supramolecular system, indicating the interaction mechanism of inclusion processes.  相似文献   

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