As an important intermediate to study cyclin-dependent kinase （CDK） inhibitors, 2-ary1-8-（piperidin-4-y1）-5,7-dimethoxy-4H- chromen-4-one derivatives were prepared using 13-diketone route with low yield. In our st...As an important intermediate to study cyclin-dependent kinase （CDK） inhibitors, 2-ary1-8-（piperidin-4-y1）-5,7-dimethoxy-4H- chromen-4-one derivatives were prepared using 13-diketone route with low yield. In our study, chalcone route has been investigated and the result suggested that the benzaldehydes substituted with electron-donating group give much better yield than β-diketone route. This new method will be an efficient way to start further research on new anticancer flavonoids.展开更多
Laser-electrochemical doping of poly(N-vinylcarbazole) (PVK) leads to the formation of high conducting PVK polymers. The doped polymers were characterized by IR spectra and electrical conductivity measurement. The res...Laser-electrochemical doping of poly(N-vinylcarbazole) (PVK) leads to the formation of high conducting PVK polymers. The doped polymers were characterized by IR spectra and electrical conductivity measurement. The results show that the photochemical effects from laser irradiation on the working electrode speed up the reaction rate and increase the doping degree of counterion.展开更多
基金We are grateful to the National Natural Science Foundation of China （No. 20272033） for financial support for this work.
文摘As an important intermediate to study cyclin-dependent kinase （CDK） inhibitors, 2-ary1-8-（piperidin-4-y1）-5,7-dimethoxy-4H- chromen-4-one derivatives were prepared using 13-diketone route with low yield. In our study, chalcone route has been investigated and the result suggested that the benzaldehydes substituted with electron-donating group give much better yield than β-diketone route. This new method will be an efficient way to start further research on new anticancer flavonoids.
文摘Laser-electrochemical doping of poly(N-vinylcarbazole) (PVK) leads to the formation of high conducting PVK polymers. The doped polymers were characterized by IR spectra and electrical conductivity measurement. The results show that the photochemical effects from laser irradiation on the working electrode speed up the reaction rate and increase the doping degree of counterion.
