The design of artificial nucleases and nuclease mimics has attracted extensive attention and made great progress due to their significant scientific meanings and potential application in the field of gene medicine and...The design of artificial nucleases and nuclease mimics has attracted extensive attention and made great progress due to their significant scientific meanings and potential application in the field of gene medicine and molecular biology. This paper reviews recent progress in the investigation of artificial nuclease,including "bifunctional cooperative catalysis","dinuclear synergistic catalysis","metal-free catalysis" ,and especially,the studies of aza-crown ethers as artificial nucleases and their interaction with DNA.展开更多
A series of disperse dyes bearing ether groups have been synthesized. The visible absorption spectra of them were studied, their fastness on polyester microfibres were investigated.
High performance polymers have received considerable attention over the past decade owing to their increased demands as replacements for metals or ceramics in automotive, aerospace, and microelectronic industries. Pol...High performance polymers have received considerable attention over the past decade owing to their increased demands as replacements for metals or ceramics in automotive, aerospace, and microelectronic industries. Poly（aryl ether ketone）s（PAEKs） are a class of important high-performance aromatic polymers with excellent mechanical properties, good solvent resistance, size-accuracy, electrical characteristics, and superior thermal stability. However,展开更多
Remote ether groups could be used as directing groups to prepare fully substituted 5-ether-1,2,3-triazoles with exclusive 1,5-regioselectivities and excellent chemoselectivities. Ether group could coordinate with irid...Remote ether groups could be used as directing groups to prepare fully substituted 5-ether-1,2,3-triazoles with exclusive 1,5-regioselectivities and excellent chemoselectivities. Ether group could coordinate with iridium catalyst by lone-pair electron at a distance(up to four σ bonds) away from alkyne to control the regioselectivity by weak coordination effect. The cycloaddition reaction chemoselectively occurred at the propargyl ether moiety of diyne to give unique fully substituted 4-alkynyl-triazole.展开更多
基金Supported by the National Natural Science Foundation of China (Grant Nos. 20872061 & 20372032)the National Basic Research of China (Grant No. 2007CB925103)
文摘The design of artificial nucleases and nuclease mimics has attracted extensive attention and made great progress due to their significant scientific meanings and potential application in the field of gene medicine and molecular biology. This paper reviews recent progress in the investigation of artificial nuclease,including "bifunctional cooperative catalysis","dinuclear synergistic catalysis","metal-free catalysis" ,and especially,the studies of aza-crown ethers as artificial nucleases and their interaction with DNA.
文摘A series of disperse dyes bearing ether groups have been synthesized. The visible absorption spectra of them were studied, their fastness on polyester microfibres were investigated.
基金Supported by the National High Technology Research and Development Program of China(No.2006AA03Z543).
文摘High performance polymers have received considerable attention over the past decade owing to their increased demands as replacements for metals or ceramics in automotive, aerospace, and microelectronic industries. Poly（aryl ether ketone）s（PAEKs） are a class of important high-performance aromatic polymers with excellent mechanical properties, good solvent resistance, size-accuracy, electrical characteristics, and superior thermal stability. However,
基金the National Key Basic Research Program，the National Natural Science Foundation of China，Chinese Academy of Sciences，the Fundamental Research Funds for the Central Universities, and USTCSCC
基金supported by grants from the National Natural Science Foundation of China (No. 21978039)Special Funds of the Central Government Leading Local Government for the Technology Development (Nos. 2021JH6/10500146, 2021JH6/10500148)the Fundamental Research Funds for the Central Universities (Nos. DUT20YG120, DUT19LK60)。
文摘Remote ether groups could be used as directing groups to prepare fully substituted 5-ether-1,2,3-triazoles with exclusive 1,5-regioselectivities and excellent chemoselectivities. Ether group could coordinate with iridium catalyst by lone-pair electron at a distance(up to four σ bonds) away from alkyne to control the regioselectivity by weak coordination effect. The cycloaddition reaction chemoselectively occurred at the propargyl ether moiety of diyne to give unique fully substituted 4-alkynyl-triazole.
