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11.
Zhenlu ShenXiaofei He Jialiang DaiWeimin Mo Baoxiang HuNan Sun Xinquan Hu 《Tetrahedron》2011,67(9):1665-1672
An efficient direct amination of quinazolin-4(3H)-ones has been developed. Treatment of quinazolin-4(3H)-ones with HCCP, DIPEA, and N-contained nucleophiles in acetonitrile could be able to form the corresponding 4-aminoquinazoline derivatives. Under the optimal reaction conditions, the amination products were achieved in good yields. 相似文献
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A series of amphiphilic multi‐armed PPn copolymers were prepared by ROP of Phe‐NCA with PEI‐25k as a macroinitiator. The particle size of the PPn/DNA complexes was about 100 nm and the zeta potentials were below 20 mV. An MTT assay demonstrated that all the PPn copolymers had lower cytotoxicity compared to PEI‐25k. In vitro gene transfection studies were also conducted in HeLa, 293 and CT 26 cells. The optimal quantity of hydrophobic phenylalanine segments in PP80 led to higher transfection efficiency in various cell lines based on this study. The results indicate that PP80 was the best candidate for gene delivery among these PPn copolymers.
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首次对随机Pade逼近进行了研究。考虑了随机形式幂级数 f(z,ω)=a_0ξ_0(ω)+a_iξ_i(ω)z+…(1)的Pade逼近。其中a_i(i=0,1,…)是全不为零的实数序列,ξ_i(ω)是独立的连续随机变量。 首先证明了(1)的任意Pade逼近的a.s.存在性。其次,考虑了一类形如 (2) 的随机准解析函数Pade逼近的a.s.依勒贝格测度收敛性。 相似文献
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Xiao‐Ting Liu Kang Wang Ze Chang Ying‐Hui Zhang Jialiang Xu Yong Sheng Zhao Xian‐He Bu 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(39):14028-14034
Photonic materials use photons as information carriers and offer the potential for unprecedented applications in optical and optoelectronic devices. In this study, we introduce a new strategy for photonic materials using metal–organic frameworks (MOFs) as the host for the rational construction of donor–acceptor (D–A) heterostructure crystals. We have engineered a rich library of heterostructure crystals using the MOF NKU‐111 as a host. NKU‐111 is based upon an electron‐deficient tridentate ligand (acceptor) that can bind to various electron‐rich guests (donors). The resulting heterocrystals exhibit spatially segregated multi‐color emission resulting from the guest‐dependent charge‐transfer (CT) emission. Spatially effective mono‐directional energy transfer results from tuning the energy gradient between adjacent domains through the selection of donor guest molecules, which suggests potential applications in integrated optical circuit devices, for example, photonic diodes, on‐chip signal processing, optical logic gates. 相似文献
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Jiang Xin Zhao Dongxiao Chen Jialiang Li Wenting Li Kexin Chen Chao 《Kinetics and Catalysis》2022,63(5):470-479
Kinetics and Catalysis - A ternary synergistic photocatalyst H3PW12O40/Pt/UiO-66-NH2 was successfully fabricated for the first time through a simple solvothermal synthetic strategy. We found that... 相似文献
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Xinyue Li Sergey Semin Leandro A. Estrada Chunqing Yuan Yulong Duan Jonathan Cremers Paul Tinnemans Paul Kouwer Alan E. Rowan Theo Rasing Jialiang Xu 《中国化学快报》2018,29(2):297-300
The polymorphs of a phenylethynyl functionalized fluorenone derivative, and their controlled self-assembly for microstructures with different morphologies have been studied. These polymorphic microcrystals exhibit very distinctive NLO properties, which are highly correlated to their electronic and supramolecular structures. 相似文献
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Dihydroxyalkenes or their monoprotected alcohol derivatives are transformed to 5,5- and 5,6-spiroketals through a sequence involving an initial iodocyclization, followed by a silver triflate mediated spiroketalization step on the derived hydroxy-iodoether. 相似文献