Six coordination compounds of Pt(Ⅱ)L_2 and Ir(Ⅲ)L_3 type(where L is PT^-, 3Me-PT^-or 4Me-PT^-)are reported here.Four coordination compounds of the latter two ligands have never been reported before,while PT^-'s ...Six coordination compounds of Pt(Ⅱ)L_2 and Ir(Ⅲ)L_3 type(where L is PT^-, 3Me-PT^-or 4Me-PT^-)are reported here.Four coordination compounds of the latter two ligands have never been reported before,while PT^-'s were synthesized with H_2PtCl_6 and(NH_4)_3IrCl_6 respectively,which were different from the methods of Davidson et al.~1 and Sterinbrech^2.They were characterized by elemental analysis, UV,IR,~1HNMR and molar conductance.Their structural formulas have been determined,and the mechanism of synthetic reaction has been discussed.展开更多
A novel β-cyclodextrin(β-CD)derivative bearing diethanolamine moiety was synthesized by a convenient method with 63% yield,and the new host compound was characterized by (13)~C-NMR,FT-IR spectra etc,
Introduction Calixarenes are versatile host molecules for molecular recognition and supramolecular assembly because its functional groups can be readily introduced into the phenolic OH or the para position to realize...Introduction Calixarenes are versatile host molecules for molecular recognition and supramolecular assembly because its functional groups can be readily introduced into the phenolic OH or the para position to realize a wide variety of functions calixarenes-based polymers tion as these polymers can During the past decade, received increasing attenbe used to synthesize the materials that are suitable for the preparation of chemical sensor devices such as ion-selective electrodes or transport membranes.展开更多
The paper reports the synthetic procedure and character of Copper(II) binuclearcoordination compound of 1,4-bis-(1'-phenyl-3'-methyl-5'-pyrazolone Thenon-isothermal kinetics of thermal decomposition of the...The paper reports the synthetic procedure and character of Copper(II) binuclearcoordination compound of 1,4-bis-(1'-phenyl-3'-methyl-5'-pyrazolone Thenon-isothermal kinetics of thermal decomposition of the complex has been stUdied from the TG-DTGcurves by means of the Achar et al. and Coats-Redfern methods,the most probab1e kinetic equation canbe expressed as dofdtrAe -E / RT * l /(2Q).The corresponding kinetic compensation effect expressions arefound to be lnuA=0. 1794E+0. 1689.The non-isothermal thermal decomposition process of the complex isone-dimensional diffusion.But electrochemical studies of the complex(Cu2L'2)from cyclic voltamrnetriccurves by means of powder microelectrodes technique'',shows one two-electron irreversible process.展开更多
Studies on fullerenes have been made extensively since the method of macroscopic synthesis of fullerenes was proposed in 1990, and synthesis and structure of organic derivatives of buckminsterfullerene continue to att...Studies on fullerenes have been made extensively since the method of macroscopic synthesis of fullerenes was proposed in 1990, and synthesis and structure of organic derivatives of buckminsterfullerene continue to attract interest of broad scientific community. The chemical reactivity of buckminsterfullerene (C<sub>60</sub>) is an area of vigorous investigation. It has been suggested that C<sub>60</sub> acts like a closed-cage alkene rather than展开更多
A novel bis（β-diketonate） derivate, 3,6-bis（4,4,4-trifluorobutane-1,3-dione）-9-n- butylcarbazole 1, was synthesized and structurally characterized by single-crystal X-ray diffrac- tion. The crystal belongs to the...A novel bis（β-diketonate） derivate, 3,6-bis（4,4,4-trifluorobutane-1,3-dione）-9-n- butylcarbazole 1, was synthesized and structurally characterized by single-crystal X-ray diffrac- tion. The crystal belongs to the monoclinic system, space group P2 1/c with a = 10.961（6）, b = 22.942（13）, c = 9.408（6）A, α = 90, β = 109.663（9）, y = 90°, V = 2228（2）A^3, Z = 4, Dc = 1.489 g/cm^3, C24H19F6NO4, Mr = 499.40, F（000） = 1024 and μ = 0.134 mm^-1. The structure was refined to the final R = 0.0699 and wR = 0.1627 for 3744 independent reflections （Rint = 0.1288） and 1349 observed reflections （I 〉 2σ（I））. Compound 1 consists of carbazole unit and two terminal diketonate groups, in which carbazole and its two adjacent diketonate rings are almost coplanar. Moreover, compound 1 was characterized with IR, elemental analysis, IH NMR, MS, electronic absorption, and single-photon fluorescence.展开更多
3-亚烯基环戊烯类衍生物是一类重要的有机化合物,是许多天然产物、药物分子的核心骨架,具有广泛的生理药理作用。本文基于此,探究了该骨架的合成方法,发展了一种以烯炔胺、炔丙醇为原料,金/银共催化下,DCE为反应溶剂合成五取代衍生物的...3-亚烯基环戊烯类衍生物是一类重要的有机化合物,是许多天然产物、药物分子的核心骨架,具有广泛的生理药理作用。本文基于此,探究了该骨架的合成方法,发展了一种以烯炔胺、炔丙醇为原料,金/银共催化下,DCE为反应溶剂合成五取代衍生物的方法。该方法反应条件温和,反应普适性较广(43%~69%)。本文共合成了12种新型的五取代3-亚烯基环戊烯衍生物,产物均经过1 H NMR,13 C NMR和HR-MS(ESI)表征。展开更多
以异海松酸为原料,酰氯化制得异海松酸酰氯,然后异海松酸酰氯再与对苯二胺连接的噻吩类磺酰胺发生胺解反应,合成得到4个未见报道的异海松酰基噻吩类磺酰胺:异海松酰基-4-溴-2,5-二氯噻吩-3-磺酰胺(5a)、异海松酰基-5-溴噻吩-2-磺酰胺(5b...以异海松酸为原料,酰氯化制得异海松酸酰氯,然后异海松酸酰氯再与对苯二胺连接的噻吩类磺酰胺发生胺解反应,合成得到4个未见报道的异海松酰基噻吩类磺酰胺:异海松酰基-4-溴-2,5-二氯噻吩-3-磺酰胺(5a)、异海松酰基-5-溴噻吩-2-磺酰胺(5b)、异海松酰基-5-氯-4-硝基噻吩-2-磺酰胺(5c)、异海松酰基-噻吩-2-磺酰胺(5d)。对合成的化合物的结构用FT-IR、1 H NMR、13 C NMR和ESI-MS进行确证,并采用噻唑蓝(MTT)法测定了目标化合物对4种肿瘤细胞的抑制活性。研究结果表明:浓度100μmol/L时,化合物5b对Hela、MDA-MB-231及Hep G2的肿瘤细胞增殖抑制率均超过90%,其抑制率分别为91.36%、94.06%和92.26%,而对PC-3的肿瘤细胞抑制率为86.93%,也接近90%,说明化合物5b具有良好的抗肿瘤活性。通过IC 50值的测定进一步得出化合物5b的抑制效果优于阳性对照物临床上应用较广的抗癌剂5-氟尿嘧啶(5-FU)。展开更多
熊果酸属于五环三萜类配合物,在自然界中分布广泛,并显示出多种生物活性,如保肝、抗炎、抗病毒、抗癌等多种药理作用.为寻找高效、低毒的熊果酸衍生物,以具有一定生物活性的熊果酸为先导配合物,通过对其C-28位进行结构修饰及C-3位引入...熊果酸属于五环三萜类配合物,在自然界中分布广泛,并显示出多种生物活性,如保肝、抗炎、抗病毒、抗癌等多种药理作用.为寻找高效、低毒的熊果酸衍生物,以具有一定生物活性的熊果酸为先导配合物,通过对其C-28位进行结构修饰及C-3位引入氨基酸,共设计合成了10种未见报道的熊果酸衍生物.目标配合物的结构经1 H NMR、IR和HRMS表征确证,并以其对培养于高铁血红蛋白的金黄色葡萄球菌、耐甲氧西林金黄色葡萄球菌、耐喹诺酮金黄色葡萄球菌和培养于脑心浸液培养基中的大肠杆菌进行抑菌活性测试.结果表明,经修饰后的熊果酸衍生物对金黄色葡萄球菌、耐甲氧西林金黄色葡萄球菌、耐喹诺酮金黄色葡萄球菌的抗菌活性较母体配合物有不同程度的提升.展开更多
A novel derivaltive thiophene,2,5 nis(2 amino ehtoxymethyl) thiophene(B) was synthesized.It was characterized by elemental analysis,IR,and 1H NMR.The preliminary bioactivity study showed that compound(B) exhibited hig...A novel derivaltive thiophene,2,5 nis(2 amino ehtoxymethyl) thiophene(B) was synthesized.It was characterized by elemental analysis,IR,and 1H NMR.The preliminary bioactivity study showed that compound(B) exhibited higher antibacterial activity.展开更多
文摘Six coordination compounds of Pt(Ⅱ)L_2 and Ir(Ⅲ)L_3 type(where L is PT^-, 3Me-PT^-or 4Me-PT^-)are reported here.Four coordination compounds of the latter two ligands have never been reported before,while PT^-'s were synthesized with H_2PtCl_6 and(NH_4)_3IrCl_6 respectively,which were different from the methods of Davidson et al.~1 and Sterinbrech^2.They were characterized by elemental analysis, UV,IR,~1HNMR and molar conductance.Their structural formulas have been determined,and the mechanism of synthetic reaction has been discussed.
文摘A novel β-cyclodextrin(β-CD)derivative bearing diethanolamine moiety was synthesized by a convenient method with 63% yield,and the new host compound was characterized by (13)~C-NMR,FT-IR spectra etc,
基金the National Natural Science Foundation of China(No 29971023)
文摘Introduction Calixarenes are versatile host molecules for molecular recognition and supramolecular assembly because its functional groups can be readily introduced into the phenolic OH or the para position to realize a wide variety of functions calixarenes-based polymers tion as these polymers can During the past decade, received increasing attenbe used to synthesize the materials that are suitable for the preparation of chemical sensor devices such as ion-selective electrodes or transport membranes.
文摘The paper reports the synthetic procedure and character of Copper(II) binuclearcoordination compound of 1,4-bis-(1'-phenyl-3'-methyl-5'-pyrazolone Thenon-isothermal kinetics of thermal decomposition of the complex has been stUdied from the TG-DTGcurves by means of the Achar et al. and Coats-Redfern methods,the most probab1e kinetic equation canbe expressed as dofdtrAe -E / RT * l /(2Q).The corresponding kinetic compensation effect expressions arefound to be lnuA=0. 1794E+0. 1689.The non-isothermal thermal decomposition process of the complex isone-dimensional diffusion.But electrochemical studies of the complex(Cu2L'2)from cyclic voltamrnetriccurves by means of powder microelectrodes technique'',shows one two-electron irreversible process.
文摘Studies on fullerenes have been made extensively since the method of macroscopic synthesis of fullerenes was proposed in 1990, and synthesis and structure of organic derivatives of buckminsterfullerene continue to attract interest of broad scientific community. The chemical reactivity of buckminsterfullerene (C<sub>60</sub>) is an area of vigorous investigation. It has been suggested that C<sub>60</sub> acts like a closed-cage alkene rather than
基金This work was supported by the National Natural Science Foundation of China (No. 50532030, 50325311, 50335050)Scientific Research & Development Foundation of Hefei University (No. 07KY003ZR)
文摘A novel bis（β-diketonate） derivate, 3,6-bis（4,4,4-trifluorobutane-1,3-dione）-9-n- butylcarbazole 1, was synthesized and structurally characterized by single-crystal X-ray diffrac- tion. The crystal belongs to the monoclinic system, space group P2 1/c with a = 10.961（6）, b = 22.942（13）, c = 9.408（6）A, α = 90, β = 109.663（9）, y = 90°, V = 2228（2）A^3, Z = 4, Dc = 1.489 g/cm^3, C24H19F6NO4, Mr = 499.40, F（000） = 1024 and μ = 0.134 mm^-1. The structure was refined to the final R = 0.0699 and wR = 0.1627 for 3744 independent reflections （Rint = 0.1288） and 1349 observed reflections （I 〉 2σ（I））. Compound 1 consists of carbazole unit and two terminal diketonate groups, in which carbazole and its two adjacent diketonate rings are almost coplanar. Moreover, compound 1 was characterized with IR, elemental analysis, IH NMR, MS, electronic absorption, and single-photon fluorescence.
文摘3-亚烯基环戊烯类衍生物是一类重要的有机化合物,是许多天然产物、药物分子的核心骨架,具有广泛的生理药理作用。本文基于此,探究了该骨架的合成方法,发展了一种以烯炔胺、炔丙醇为原料,金/银共催化下,DCE为反应溶剂合成五取代衍生物的方法。该方法反应条件温和,反应普适性较广(43%~69%)。本文共合成了12种新型的五取代3-亚烯基环戊烯衍生物,产物均经过1 H NMR,13 C NMR和HR-MS(ESI)表征。
文摘以异海松酸为原料,酰氯化制得异海松酸酰氯,然后异海松酸酰氯再与对苯二胺连接的噻吩类磺酰胺发生胺解反应,合成得到4个未见报道的异海松酰基噻吩类磺酰胺:异海松酰基-4-溴-2,5-二氯噻吩-3-磺酰胺(5a)、异海松酰基-5-溴噻吩-2-磺酰胺(5b)、异海松酰基-5-氯-4-硝基噻吩-2-磺酰胺(5c)、异海松酰基-噻吩-2-磺酰胺(5d)。对合成的化合物的结构用FT-IR、1 H NMR、13 C NMR和ESI-MS进行确证,并采用噻唑蓝(MTT)法测定了目标化合物对4种肿瘤细胞的抑制活性。研究结果表明:浓度100μmol/L时,化合物5b对Hela、MDA-MB-231及Hep G2的肿瘤细胞增殖抑制率均超过90%,其抑制率分别为91.36%、94.06%和92.26%,而对PC-3的肿瘤细胞抑制率为86.93%,也接近90%,说明化合物5b具有良好的抗肿瘤活性。通过IC 50值的测定进一步得出化合物5b的抑制效果优于阳性对照物临床上应用较广的抗癌剂5-氟尿嘧啶(5-FU)。
文摘熊果酸属于五环三萜类配合物,在自然界中分布广泛,并显示出多种生物活性,如保肝、抗炎、抗病毒、抗癌等多种药理作用.为寻找高效、低毒的熊果酸衍生物,以具有一定生物活性的熊果酸为先导配合物,通过对其C-28位进行结构修饰及C-3位引入氨基酸,共设计合成了10种未见报道的熊果酸衍生物.目标配合物的结构经1 H NMR、IR和HRMS表征确证,并以其对培养于高铁血红蛋白的金黄色葡萄球菌、耐甲氧西林金黄色葡萄球菌、耐喹诺酮金黄色葡萄球菌和培养于脑心浸液培养基中的大肠杆菌进行抑菌活性测试.结果表明,经修饰后的熊果酸衍生物对金黄色葡萄球菌、耐甲氧西林金黄色葡萄球菌、耐喹诺酮金黄色葡萄球菌的抗菌活性较母体配合物有不同程度的提升.
