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,
In order to find new herbicidal compounds, twelve novel 1-phenoxyacetyl-3-arylimidazolidine-2,4-dione compounds were designed and synthesized by substructure combination strategy using 3-arylimidazolidine-2,4-dione as...In order to find new herbicidal compounds, twelve novel 1-phenoxyacetyl-3-arylimidazolidine-2,4-dione compounds were designed and synthesized by substructure combination strategy using 3-arylimidazolidine-2,4-dione as the intermediate. The structures of the target compounds were confirmed by;H NMR and IR. The preliminary bioassay results showed that most of the target compounds had good inhibition against rape and barnyardgrass at the concentration of 100 mg/L. Especially, compound H3 and H5 showed 100% inhibitory activity against rape.展开更多
Additions of diethyl phosphite to α-nitroalkenes followed by the introduction of trimethylchlorosilane and an activated alkene, gave the corresponding title compounds via regioselective 1,3-dipolar cycloaddition in m...Additions of diethyl phosphite to α-nitroalkenes followed by the introduction of trimethylchlorosilane and an activated alkene, gave the corresponding title compounds via regioselective 1,3-dipolar cycloaddition in moderate yield.展开更多
[Objective]The paper was to develop a novel fungicide with high efficacy and low toxicity.[Method]Chlorothalonil was used as the parent structure,and its 4-position substituent was converted to amino group.Totally 12 ...[Objective]The paper was to develop a novel fungicide with high efficacy and low toxicity.[Method]Chlorothalonil was used as the parent structure,and its 4-position substituent was converted to amino group.Totally 12 amide compounds not reported in the literature were designed and synthesized.Their structures were conformed by 1H NMR.[Result]The preliminary bioassay test showed that compounds JTCN-01,JTCN-05 and JTCN-07 had good control effect on corn rust at the concentration of 200 mg/L,and the control effect of compound JTCN-05 reached 95%.[Conclusion]Some chlorothalonil derivatives had the potential for further development.展开更多
In this study,we successfully synthesized two titanium-oxo clusters,namely Ti_(19)(μ_(3)-O)_(19)(μ_(2)-O)_(10)(1,10-phn)_(2)(OiPr)_(18)](PTC-178)and(EMIm)_(3)[Ti_(17)(μ_(4)-O)_(4)(μ_(3)-O)_(16)(μ_(2)-O)_(4)(SO_(4...In this study,we successfully synthesized two titanium-oxo clusters,namely Ti_(19)(μ_(3)-O)_(19)(μ_(2)-O)_(10)(1,10-phn)_(2)(OiPr)_(18)](PTC-178)and(EMIm)_(3)[Ti_(17)(μ_(4)-O)_(4)(μ_(3)-O)_(16)(μ_(2)-O)_(4)(SO_(4))_(3)(μ_(2)-OiPr)_(4)(OiPr)_(13)](PTC-179).These clusters were synthesized using an ionothermal reaction and possess similar nuclearity(Ti19 vs.Ti17)moieties.Additionally,we observed that these complexes exhibit varying activities for photocatalytic degradation of Methylene Blue(MB)dye and distinct photocurrent responses for photoelectrochemical studies due to their different surface-decorated ligands.This study provides valuable insights into the design of Ti-oxo molecular clusters with similar nuclearity but different surface environments,allowing for the establishment of critical structure-property relationships.Furthermore,our research contributes to the exploration of sustainable synthetic methods for high nuclearity TOCs using ionic liquids.展开更多
目的优化取代喹唑啉酮类化合物的合成工艺,重点考察温度、时间2个因素对关键中间体化合物合成的影响。方法平行试验比较温度、时间和缩合剂催化酯键的氨解反应,并对试验结果进行整体化分析;采用正交设计的方差分析考察反应物、温度及时...目的优化取代喹唑啉酮类化合物的合成工艺,重点考察温度、时间2个因素对关键中间体化合物合成的影响。方法平行试验比较温度、时间和缩合剂催化酯键的氨解反应,并对试验结果进行整体化分析;采用正交设计的方差分析考察反应物、温度及时间对收率的影响。结果和结论所得化合物的结构经过1 H NMR、MS和13 C NMR等方法确证,当反应温度为30℃,反应时间为24h,缩合剂(DCC)与反应物的投料比为1.5∶1时,酯键氨解反应的收率最高(65.41%),使得取代喹唑啉酮类化合物的合成路线更加符合工业生产的要求。体外抗真菌活性实验结果表明,所测定的先导化合物对5种临床致病菌都具有潜在的抗真菌活性,值得进一步研究。展开更多
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Supported by Key Research and Development Plan of Shandong Province(2018GGX107012)Agricultural Science and Technology Innovation Project of Shandong Academy of Agricultural Sciences(CXGC2018E19)
文摘In order to find new herbicidal compounds, twelve novel 1-phenoxyacetyl-3-arylimidazolidine-2,4-dione compounds were designed and synthesized by substructure combination strategy using 3-arylimidazolidine-2,4-dione as the intermediate. The structures of the target compounds were confirmed by;H NMR and IR. The preliminary bioassay results showed that most of the target compounds had good inhibition against rape and barnyardgrass at the concentration of 100 mg/L. Especially, compound H3 and H5 showed 100% inhibitory activity against rape.
文摘Additions of diethyl phosphite to α-nitroalkenes followed by the introduction of trimethylchlorosilane and an activated alkene, gave the corresponding title compounds via regioselective 1,3-dipolar cycloaddition in moderate yield.
基金Supported by Agricultural Science and Technology Innovation Project of Shandong Academy of Agricultural Sciences(CXGC2018E19).
文摘[Objective]The paper was to develop a novel fungicide with high efficacy and low toxicity.[Method]Chlorothalonil was used as the parent structure,and its 4-position substituent was converted to amino group.Totally 12 amide compounds not reported in the literature were designed and synthesized.Their structures were conformed by 1H NMR.[Result]The preliminary bioassay test showed that compounds JTCN-01,JTCN-05 and JTCN-07 had good control effect on corn rust at the concentration of 200 mg/L,and the control effect of compound JTCN-05 reached 95%.[Conclusion]Some chlorothalonil derivatives had the potential for further development.
基金supported by National Natural Science Foundation of China(21935010)the Natural Science Foundation of Fujian Province(2022J02013)the University of Chinese Academy of Sciences(UCAS),Beijing for the financial support to the student.
文摘In this study,we successfully synthesized two titanium-oxo clusters,namely Ti_(19)(μ_(3)-O)_(19)(μ_(2)-O)_(10)(1,10-phn)_(2)(OiPr)_(18)](PTC-178)and(EMIm)_(3)[Ti_(17)(μ_(4)-O)_(4)(μ_(3)-O)_(16)(μ_(2)-O)_(4)(SO_(4))_(3)(μ_(2)-OiPr)_(4)(OiPr)_(13)](PTC-179).These clusters were synthesized using an ionothermal reaction and possess similar nuclearity(Ti19 vs.Ti17)moieties.Additionally,we observed that these complexes exhibit varying activities for photocatalytic degradation of Methylene Blue(MB)dye and distinct photocurrent responses for photoelectrochemical studies due to their different surface-decorated ligands.This study provides valuable insights into the design of Ti-oxo molecular clusters with similar nuclearity but different surface environments,allowing for the establishment of critical structure-property relationships.Furthermore,our research contributes to the exploration of sustainable synthetic methods for high nuclearity TOCs using ionic liquids.
文摘目的优化取代喹唑啉酮类化合物的合成工艺,重点考察温度、时间2个因素对关键中间体化合物合成的影响。方法平行试验比较温度、时间和缩合剂催化酯键的氨解反应,并对试验结果进行整体化分析;采用正交设计的方差分析考察反应物、温度及时间对收率的影响。结果和结论所得化合物的结构经过1 H NMR、MS和13 C NMR等方法确证,当反应温度为30℃,反应时间为24h,缩合剂(DCC)与反应物的投料比为1.5∶1时,酯键氨解反应的收率最高(65.41%),使得取代喹唑啉酮类化合物的合成路线更加符合工业生产的要求。体外抗真菌活性实验结果表明,所测定的先导化合物对5种临床致病菌都具有潜在的抗真菌活性,值得进一步研究。
