Synthesis,Structure,and Ring-opening Metathesis Polymerization of η~5-Pentamethylcyclopentadienyl-(η~5-exo-tricyclo [5.2.1.0^(2,6)]deca-2,5,8-trien-6-yl) Iron

η^5-Pentamethylcyclopentadienyl-（η^5-exo-tricyclo[5.2.1.0^2,6]deca-2,5,8-trien-6-yl） iron（3） was synthesized and characterized by ^1H NMR, ^13C NMR, MS, elemental analysis, IR, UV and X-ray diffraction analysis. Compound 3 was polymerized with ring-opening metathesis polymerization（ROMP） initiator （PCy3）2Cl2Ru=CHPh. ^1H NMR and IR spectra revealed the presence of CH=CH units in the polymer and supported the ROMP mechanism. GPC analysis of the polymer showed that the weight-average molecular weights（Mw） was 5967, and the polydispersity index（PDl） was 1.16. The polymer was also investigated by UV and cyclic voltammetry.

Syntheses and Structures of Binaphthyl-bridged Schiff Bases

The reaction of dinaphthofuran with lithium in anhydrous diethyl ether led to a solution of the corresponding C,O-dilithiated intermediate which, upon treatment with DMF at ？78 oC, afforded, after hydrolysis, 2＇-hydroxy-1,1＇-binaphthyl-2-carbaldehyde in a good yield. Then binaphthyl-bridged Schiff bases were prepared by the condensation of 2＇-hydroxy-1,1＇-binaphthyl-2-carbaldehyde with the corresponding aromatic amines.

A polysaccharide/tetraphenylethylene-mediated blue-light emissive and injectable supramolecular hydrogel

A luminescent and injectable supramolecular hydrogel was successfully constructed through the non- covalent cross-linking of polymers mediated by tetraphenylethylene-bridged cyclodextrin oligomers, presenting the strong blue fluorescence, the reversible gelation behavior responsive to various external stimuli and the good mechanical property of shear thinning.

Design and Synthesis of 1-Glycosyl-4-{N-[（2＇-morpholinethoxy）- phenyl] aminomethyl}- 1H- 1,2,3-triazoles as Calcium Activators

A series of novel l-glycosyl-4-{N-[（2＇-morpholinethoxy）phenyl]aminomethyl}-1H-1,2,3.triazoles was designed and synthesized through a simple and efficient multistep synthetic method in good yields. The 1,2,3-triazole moiety acted as a single disubstituted ring and a linker between carbohydrates（D-glucose, D-galactose, maltose and lactose） and morpholine. The compounds were characterized by ^1H NMR, ^13C NMR and mass spectra（MS）. Two dif- ferent deprotection methods were discussed. The effects of compounds 5a, 5c and 6e on the intracellular calcium ion concentration（[Ca^2＋]i） in the central neurons of S. exigua were well investigated by calcium imaging technique. The results demonstrated that compound 6e could elevate the calcium concentration in the glial cells, not in the neurons.

Design, Synthesis and Biological Activities of Novel Anthranilic Diamides Containing Dihydroisoxazoline and Isoxazole

Anthranilic diamides are one of the most important classes of modern agrochemical insecticides. To discover new structures with higher activity, lower toxicity and lower residue, a series of novel anthranilic diamides containing dihydroisoxazoline and isoxazole was designed and synthesized. Their structures were characterized by means of melting points, proton nuclear magnetic resonance（IH NMR）, 13C NMR and high resolution mass spectrometry（HRMS）. According to the bioassay data, it was found that some of the title compounds exhibit moderate insecticidal activity and good antifungal activity. In particularly, compound 15b with a concentration of 50 mg/L shows a lethality rate of 60.0% against Mythimna separata Walker and a lethality rate of 50.0% against Culex pipiens pallens with a concentration of 1 mg/L. Moreover, compound 15b showed good antifungal activities（58.8%, 77.1%, 70.7%, 55.3%, 60.7%, 65.4%） when against all the tested fungi（Cercospora araehidicola tIori, Physalospora piricola, Rhizoctonia cerealis, Bipolaris maydis, Watermelon anthracnose, Fusarium moniliforme）. The effects of compounds 14h, 14j and 15b on the concentration of intracellular calcium ion（[Ca2＋]i） in the central neurons of Mythimna separate Walker were well investigated via calcium imaging technique. The results demonstrate that the novel compounds can elevate the calcium concentration in the neurons, denoting that some new structures are potential modulators of the insect ryanodine receptor（RyR）.

Synthesis and Evaluation of Novel N-（4＇-Arylpyrimidin-2＇-yl） Sulfonylurea Derivatives as Potential Antifungal Agents

Sulfonylureas（SUs） are potent and selective inhibitors of acetohydroxyacid synthase and has been used as herbicides. Some SUs also displayed other biological activities. In order to discuss the antifungal activity of SUs, a series of novel SUs containing aryl-substituted pyrimidine moieties was designed and synthesized. The preliminary bioassay showed that the title compounds exhibited moderate to favorable fungicidal activities in vivo. Especially, compound 9b exhibited more efficacy than the controls against five fungi at 25 mg/L. These promising results indicate that an aryl group on pyrimidine ring is favorable for antifungal activity and SUs are potential inhibitors for some phytopathogenic fungi.